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Dave Pentecost2014-02-24 00:51:51
Yesterday in Palenque.
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  • Dave Pentecost2013-03-25 18:01:36
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    Voodoo Chile indeed. 

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    I'm pretty sure I saw this roll through my G+ stream sometime this weekend, but this is just to good to not share again.  Killer Hendrix cover.

    Via +Boing Boing and Reddit.
  • 3 plusses - 22 comments - 4 shares | Read in G+
  • Dave Pentecost2013-03-16 12:29:46
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    Another one of life's little mysteries solved.

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    I have always wondered about this. It's sorcery. 

    How a Sewing Machine Works
  • 16 plusses - 6 comments - 3 shares | Read in G+
  • Dave Pentecost2013-11-16 07:22:51
    Smithsonian Online 3D Site

    http://3d.si.edu/explorer?s=ix4EIH
  • 11 plusses - 1 comments - 8 shares | Read in G+
  • Dave Pentecost2013-12-23 22:35:31
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    Maths and snow - snowdecahedron :D
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  • Dave Pentecost2013-03-23 17:32:46
    Same photo, through Drive

    Any difference in zoom ability or resolution?
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  • Dave Pentecost2013-05-24 20:06:10
    Riser framing complete

    East Village Planetarium. The blue line is the front center of the dome, a test of one section of future cove lighting that will circle the bottom.
  • 13 plusses - 4 comments - 2 shares | Read in G+
  • Dave Pentecost2013-09-10 02:40:00
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    Brilliant.

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    Autodesk Partners with Circuits.io to Create Free Electronics Design Tool

    Autodesk today expanded its suite of free 3D tools by partnering with Circuits.io to launch an electronics design tool: 123D Circuits.

    The program allows users to create virtual breadboard-based designs to build and experiment with circuits. A virtual Arduino board can be added to the design, and the code can be edited in a browser window and simulated. The code can also be edited collaboratively (“a Google Doc for electronics” Autodesk claims).

    The program also provides hooks that allow users to have the virtual boards professionally manufactured.

    Read more about this exciting acquisition: http://ow.ly/oItCw
  • 13 plusses - 1 comments - 3 shares | Read in G+
  • Dave Pentecost2013-05-13 20:04:51
    Planetarium offices - Mine and Carter's

    Just working out the best layout for desks in my future office and in the dome control room and "space center". For the first time I can sit in the place that has been 3 years under construction. A folding table for now, but it's still a thrill.

    Contrast with Carter Emmart's office in the American Museum of Natural History, where he is director of astrovisualization. His place shows a quirky 15-year accumulation of space toys and souvenirs of his travels. Mine will get some character over time but I doubt I will ever match his. Who could?
  • 8 plusses - 12 comments - 1 shares | Read in G+
  • Dave Pentecost2014-04-14 19:03:35
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    Cool.

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    Looping stop motion of a 3D printed bear...climbing stairs
  • 13 plusses - 2 comments - 2 shares | Read in G+
  • Dave Pentecost2013-03-30 04:50:52
    Airstream Revealed

    After 18 months protected from the construction around it, the 1958 Airstream trailer is almost ready to uncover. Ceilings have the final paint coat, and the walls are rolled, not sprayed, so I pulled back the tarp to take a look.

    In the summer of 2011, my son Will and I spent weeks polishing and preparing the trailer to be hoisted in. That fall it was hoisted into the building.

    See this video: Airstream - From the Adirondacks to Avenue D (version1)
    And this story in Make: http://blog.makezine.com/2011/12/01/lower-east-side-girls-club-gets-airstream-trailer-on-the-second-floor/

    There's a lot of work ahead to convert it to a recording studio, but the shine is inspiring. And it's always a surprise to visitors when we walk through the building. The future is curved.
  • 9 plusses - 7 comments - 2 shares | Read in G+
  • Dave Pentecost2013-08-08 20:33:06
    Dome in Action

    I made a first attempt to get a shot of the planetarium in its mostly complete state, with seating and projection. Here's the best I've done so far.
  • 12 plusses - 7 comments - 0 shares | Read in G+
  • Dave Pentecost2013-03-29 22:51:15
    360 Video and Photos with GoPro Hero Cameras

    Of course someone has been working on this. They say they are releasing it in March. Whoops. Stay tuned. Good timing for dome experiments. 
  • 2 plusses - 15 comments - 2 shares | Read in G+
  • Dave Pentecost2013-06-14 23:49:18
    First Flight

    A shot just now of the whole dome - ISS over Earth.
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  • Dave Pentecost2013-12-24 18:17:42
    MiniPlanet Editor for Unity

    Not released yet. Looks like fun.
  • 7 plusses - 3 comments - 4 shares | Read in G+
  • Dave Pentecost2014-02-25 13:41:01
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    Via +Yonatan Zunger

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    This is an animation of DNA replication by DNA polymerase and accurately shows the function of all its subunits.

    Source: http://youtu.be/OjPcT1uUZiE

    h/t: chemistrydoc
  • 7 plusses - 7 comments - 2 shares | Read in G+
  • Dave Pentecost2013-04-18 20:28:14
    Dome frame is raised
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  • Dave Pentecost2014-02-24 03:51:03
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    Via +Assia Alexandrova

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    Mathematician and Artist Robert Bosch does some amazing work with mosaics, dominoes, and labyrinths.  This piece is a Travelling Salesman tour in the form of Fibonacci.

    You can check out more of Bosch's work here:  http://www.dominoartwork.com/
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  • Dave Pentecost2014-03-05 18:25:12
    In the Airstream

    Work proceeds on the Airstream recording studio in the Lower Eastside Girls Club.

    All under floor work (power, ducts, conduits) is done and subfloor, iso layer, and finish floor installed. Now it gets covered to complete the interior. Framing is for the wall between the booth and the mixing and engineering console, at the far end.
  • 9 plusses - 8 comments - 0 shares | Read in G+
  • Dave Pentecost2014-01-09 16:51:29
    Airstream Interior Stripped

    Our new crew started yesterday, in a process to build the recording studio in the 1958 Airstream, on the second floor of the new facility.

    I had stripped the bottom half of the interior panels before it was transported and hoisted into the second floor of the building 2 years ago. We've been busy with other things, like the planetarium, cafe and bakery, offices, but it's time for the Airstream.

    The last half of the 50 year-old fiberglass insulation, riddled with field mouse burrows, has remained hidden. The crew came in and carefully removed it all, then cleaned up the evidence. Bravo!

    Now for the wiring, re-insulation for acoustic requirements, re-skinning with perforated aluminum. Stay tuned.

    #notcosteffectiveareyoukidding?
    #diditbecauseitscoolandinspiring
    #spaceageartifact
  • 9 plusses - 8 comments - 0 shares | Read in G+
  • Dave Pentecost2013-08-01 00:29:33
    Small post, major milestone

    For those following the building saga: we received our TCO (temporary certificate of occupancy) today, after 3 years of construction (17 years of planning) and major delays along the way. Kitchen gas, ansul system, chimney and ventilation slowed us down, as did poor advice from our builder/partners, whom we kicked out in January.

    But that's all behind us now. Up until today, it was Occupy Girls Club. Now that we are legal with the Department of Buildings, we move ahead. The fun begins.
  • 9 plusses - 8 comments - 0 shares | Read in G+
  • Dave Pentecost2014-03-20 17:47:58
    Old dude in the dome

    Yes, that's me with a cell nucleus animation from Drew Berry. Testing lighting for presenters - how to light the person without blowing out the dome.

    Cropped fisheye shot, 4.5mm lens on Panasonic GH3 with adapter.
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  • Dave Pentecost2013-05-24 16:02:36
    This time with the seating and dome overlaid.
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  • Dave Pentecost2013-09-30 22:23:56
    And farewell my favorite work spot

    Until next year.

    Yes, I can work with beer and peanuts.
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  • Dave Pentecost2013-09-14 20:50:14
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    ESO telescopes create the best 3D map yet of central bulge of the Milky Way

    Two groups of astronomers have used data from ESO telescopes to make the best three-dimensional map yet of the central parts of the Milky Way. They have found that the inner regions take on a peanut-like, or X-shaped, appearance from some angles. This odd shape was mapped by using public data from ESO’s VISTA survey telescope along with measurements of the motions of hundreds of very faint stars in the central bulge.

    Full story here: http://www.eso.org/public/news/eso1339/

    Image Credit: ESO/NASA/JPL-Caltech/M. Kornmesser/R. Hurt

    #science   #milkyway   #vista   #eso   #astronomy  
  • 9 plusses - 0 comments - 3 shares | Read in G+
  • Dave Pentecost2013-11-14 21:27:16
    Cruising Mars, Bangkok to NYC

    Two nights ago, at the end of a spectacular opening night in our new facility, +Carter Emmart connected from Bangkok, controlling our dome and giving a few of our friends a tour of the surface of Mars. Carter helped create the Uniview software that makes this possible, and he has moved us faster than I believed we could, to make this happen.

    Here is a view of the "Hanging Cliffs" of Valles Marineris from that session. It was a thrilling milestone in our plans to use the dome for international connection and in Google Hangouts on Air.

    Att +Abby Bouchon 
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  • Dave Pentecost2013-10-19 16:13:18
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    See how exciting your life is...!
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  • Dave Pentecost2013-09-29 17:51:13
    A Postcard Day

    And we needed it.
    Echo Lake, Adirondacks.
  • 9 plusses - 1 comments - 2 shares | Read in G+
  • Dave Pentecost2014-02-06 17:18:19
    Dome Redux

    Ran across this photo of our planetarium from last fall, thought I'd repost it for the newcomers. I have finally installed a box around the projector to protect it. I'll post a photo of that soon.

    #eastvillageplanetarium
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  • Dave Pentecost2014-04-01 14:11:32
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  • Dave Pentecost2014-01-18 23:40:05
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    River history as glowing landscape - "...dynamic movements the river has made in recent millennia...LiDAR-derived digital elevation model" LiDAR is a remote sensing technology that measures distance by illuminating a target with a laser and analyzing the reflected light. 

    This lidar-derived digital elevation model of the Willamette River displays a 50-foot elevation range, from low elevations (displayed in white) fading to higher elevations (displayed in dark blue). This visually replaces the relatively flat landscape of the valley floor with vivid historical channels, showing the dynamic movements the river has made in recent millennia. This segment of the Willamette River flows past Albany near the bottom of the image northward to the communities of Monmouth and Independence at the top. Near the center, the Luckiamute River flows into the Willamette from the left, and the Santiam River flows in from the right. Lidar imagery by Daniel E. Coe.

    The Oregon Department of Geology and Mineral Industries (DOGAMI) has been collecting lidar data in Oregon since 2006. The goal is to cover the entire state as funding for data collection becomes available. You can learn more about lidar and view lidar images of other parts of Oregon at www.OregonGeology.org.

    Lidar is popularly used as a technology used to make high resolution maps, with applications in geomatics, archaeology, geography, geology, geomorphology, seismology, forestry, remote sensing, atmospheric physics, airborne laser swath mapping, laser altimetry, and contour mapping.

    SOURCES:
    http://www.oregongeology.org/pubs/ll/p-poster-willamette.htm
    http://flowingdata.com/2013/05/03/glowing-landscape-shows-river-history
    http://en.wikipedia.org/wiki/Lidar

     #science #geography #cartography #map #LiDAR #river #history #data #geomatics #archaeology #geography #geology #geomorphology #Oregon 
  • 7 plusses - 1 comments - 3 shares | Read in G+
  • Dave Pentecost2013-04-28 14:58:12
    Mothership - Finished

    I arrived too late this morning to see the last piece go into place. But there's plenty of work left to turn Area 51 into a digital dome theater. And there will never again be this much light blasting the dome. 

    A couple of hours of cleanup, then a possible quick run up to the American Museum of Natural History, to see the Hayden planetarium. The blokes (John, Dino, and Mike) fly out to London at 6pm. Then Colombia, Czechoslovakia, and other destinations. Wherever a dome needs building. But now that they've had a taste of the East Village, they'll be back.
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  • Dave Pentecost2013-11-06 15:06:00
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    http://shapeshifter.io/
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  • Dave Pentecost2013-07-21 23:55:11
    Did nothing today except cruise the web and paddle after two loons on the lake. Perfect.
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  • Dave Pentecost2013-06-11 13:12:06
    Cue Also Sprach Zarathustra

    Main server rack arrives.
    Richard Strauss - Also Sprach Zarathustra / 2001 Space Odyssey opening theme
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  • Dave Pentecost2014-03-28 22:45:07
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    Good essay on their photogrammetry techniques.

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    This is not real.
    The scene is from the game The Vanishing of Ethan Carter by the same guys that made Bulletstorm and Painkiller - the polish game studio The Astronauts.

    In their new game, photogrammetry  is used to create a believable 3D world which is pretty darn close to photorealistic.  Not so strange, since photogrammetry involves using a very large number of photos and positioning data to create the models.

    Read more here
    http://www.theastronauts.com/2014/03/visual-revolution-vanishing-ethan-carter/
    http://en.wikipedia.org/wiki/Photogrammetry

    #mindblowingdesign   #games   #photorealism  
  • 6 plusses - 1 comments - 3 shares | Read in G+
  • Dave Pentecost2013-10-15 17:32:10
    Processing team, first day in the Dome

    Roopa Vasudevan, +Andres Colubri and +Daniel T Shiffman looking at +Marius Watz 's Rotating Arcs sketch in the East Village Planetarium last week. Preparing for a full day workshop and followup show with students from NYU ITP. My plan is working.

    Better G+ page for Dan is here: +Daniel Shiffman 
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  • Dave Pentecost2013-07-07 01:59:56
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    Via +Laura Gibbs 

    Just bought the first two in original paperback at a used book store today. I think I read the first as a kid. Time to take another look.

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    Isaac Asimov’s Sci-Fi Classic, The Foundation Trilogy, Dramatized for Radio by the BBC.  8 Hours of Audio Goodness: http://cultr.me/QMtz5K 
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  • Dave Pentecost2013-04-05 04:08:40
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    RFduino, the tiny 32-bit Arduino based development board with onboard Bluetooth

    See it in action - 
    http://geekboy.it/news/rfduino-the-tiny-32-bit-arduino-based-development-board-with-onboard-bluetooth
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  • Dave Pentecost2014-04-14 04:40:36
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    Via +david mcconville


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    Ephemeralization - Doing more with less - Buckminster Fuller 
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  • Dave Pentecost2013-03-29 20:17:59
    Neurodome, Our Dome, Your Dome

    We had a great visit this week from the Neurodome folks, who are launching a production of a brain science dome show. Here's Jonathan, Titi, and friend Judith who got us together, in the room that shall be dome. Next time we hope +Jeanne Garbarino, +Carter Emmart and other pals and colleagues will come visit.

    Support them! Here's the Kickstarter page:
    http://www.kickstarter.com/projects/1100424922/neurodome-a-dome-format-film-that-explores-the-bra

    And their website:
    http://www.neurodome.org/
  • 3 plusses - 9 comments - 1 shares | Read in G+
  • Dave Pentecost2013-08-20 00:37:35
    Dome LED lighting for tiers, stairs

    Just completed the first version of the entrance LED lighting, using a v3 driver board from +Jeremy Saglimbeni :

    http://thecustomgeek.com/kits/rgbw-led-controller/rgbw-led-controller-build/

    Instructions for v3 are not on his site yet, but you can ask for the 2.2 version or puzzle out the differences, which aren't major, other than handling more power and more LEDs.

    Cove lighting will also help people find their seats. I started with that but then realized that the steps were a priority, as people including myself were stumbling on the way in. A temporary little spotlight helped, but these LED strips can be dimmed once people are in place. They can also be controlled over OSC and Processing, on an iPhone.

    ATT: +Kris Kortright 
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  • Dave Pentecost2013-10-04 22:24:52
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    Moonlight. Just played this in our planetarium. ah...

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  • Dave Pentecost2013-09-10 00:42:08
    Cove lights in the Dome

    It's not quite as over the top as this long exposure would suggest. But the DIY cove lights are looking good. They'll serve as house lights while the audience finds their seats.

    Power supplies, 30 meters of  RGB LEDs from Adafruit , in two 15-meter circuits
    http://www.adafruit.com/products/285
    http://www.adafruit.com/products/352

    And two V3 controller boards from +Jeremy Saglimbeni 
    http://thecustomgeek.com/kits/rgbw-led-controller/rgbw-led-controller-build/

    The LEDs on the steps are separate circuits, same components.
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  • Dave Pentecost2013-07-02 00:10:29
    Airstream Ranch Panorama

    Another for +Jaime Martorano 
    Click and drag to navigate.
    NOTE: Just realized I uploaded directly from my computer. Google compresses large photos when you do this. I'll upload a second version from Google Drive, which keeps it high resolution.

    Jaime - Driving east from Tampa on Rte 4, this is on the right side. Less than a mile later is Bates RV. If you stop there, they give you a little map to drive back to the Airstream Ranch. Definitely a great stop, and they are friendly and chatty. We barely made it before closing time at the RV dealership. You'd be hard pressed to figure out how to get to Airstream Ranch without their guidance.
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  • Dave Pentecost2013-12-25 20:34:17
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    Temari spheres

    Temari spheres are beautifully crafted balls created from a combination of silk remnants and embroidery. The history of the balls start in ancient China and moved to Japan. In the 1960′s, NanaAkua’s grandmother learned to make these decorative balls and has continued with her passion for almost 50 years. Over those years, this artistic grandmother has created over 500 unique Temari balls and continues to produce them today at 92 years old. What makes this even more incredible is the necessity for finger dexterity, control, and good vision to make these decorative orbs, an amazing feat for a 92-year old.

    http://indulgd.com/grandmother-temari-spheres/#sthash.q3OKKN8g.dpuf
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  • Dave Pentecost2013-08-08 12:42:22
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    Animation fast-forwards through turtle shell evolution, based on developmental and fossil data.

    HT +John Hutchinson 
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  • Dave Pentecost2013-06-10 12:39:10
    Luna Moth Morning

    Guess it was a long night.
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  • Dave Pentecost2013-06-18 20:55:44
    VORTEX in the house

    I've been playing videos in the dome for hours, trying the things I've stashed away for this day. One of the great ones is Vortex by +Aaron Bradbury of NSC Creative. Short and punchy. Great sound, though I don't have my 5.1 hooked up yet.
  • 4 plusses - 7 comments - 1 shares | Read in G+
  • Dave Pentecost2013-06-23 16:41:25
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    Angela Palmer's 3D glass sculptures will get inside your head

    How’s your head this morning? Angela Palmer could tell you – and she’d do it in the form of a painstakingly etched glass image of your brain. Inspired by the process of visualising and mapping natural forms, Angela takes details from MRI and CT scans and engraves them onto sheets of glass, which she then layers one on top of the other to recreate the human form and images of the brain. The result of such a process is an eerily elusive sculpture; from the front the viewer sees a full depiction of the interior architecture of the head in all of its three-dimensional glory, but from the side and the top it becomes completely invisible. Talk about mind-blowing (sorry).

    Source: http://www.itsnicethat.com/articles/angela-palmer
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  • Dave Pentecost2014-01-28 13:20:54
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    Photographic proof. History Channel is right. We puny humans could never have done it ourselves.

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  • Dave Pentecost2013-11-20 09:37:46
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    Our girls in the Girls Club have been preparing for this moment. They have had an after school class this fall with Emily Conrad, learning Arduino programming and sensors so they can run code on the ArduSat satellite for 3 days, and take photos of the earth with its camera.

    We backed ArduSat on Kickstarter in the summer of 2012 and are thrilled to see this. Congratulations to +Nanosatisfi +Joel Spark +Jeroen Cappaert +Peter Platzer Reka Kovacs and all the ArduSat collaborators.

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    Nothing warms my heart like seeing three baby satellites leave their space station nest, thanks in part to Kickstarter. "Now the adventure begins."

    http://www.nbcnews.com/science/crowdfunded-nanosatellites-unleashed-orbit-2D11624550

    Photo: NASA
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  • Dave Pentecost2013-04-21 02:24:50
    Getting ready to install dome screen panels

    Our team of itinerant English planetarium installers (John, Dino, Mike) have finished the frame install and bracing. They're getting ready to install the screen panels, which involves carefully fine tuning and machining them to achieve the "nanoseam" join that they are famous for. Seriously.

    Today they cleaned up the room and set up their shop, and tried a first pair of panels to see how close they are. Looking good. But they will spend the next two weeks hand fitting every panel.

    After they left I spent some hours hanging lapendary panels (acoustic absorption) behind and above the dome. The panels arrived a little late but soon enough to get the most inaccessible ones up before the screen panels make it impossible. I had to do the work when no one else was around so they would not see me clambering on the frame. Not many panels in place so far, but the reverberation time has already dropped from 6 seconds to about 3. More, better looking, fabric-covered panels on the walls under the springline and I'll have a nice sounding dome room. 
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  • Dave Pentecost2013-03-09 22:28:12
    Doors of San Cristobal de las Casas

    A quick walk around town today, shooting while I did last errands before we go back to New York. First time I have made a large album, but not the first time I've thought about a collection of these doors. iPhone, on the run.
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  • Dave Pentecost2013-07-30 18:38:24
    Arduino in the House - Girls Club

    Emily Conrad and the girls are hacking Arduinos. The room is full of chatter and buzzing.
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  • Dave Pentecost2013-06-30 02:19:35
    Back at the Shack

    So quiet. Except for the bullfrogs.
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  • Dave Pentecost2013-04-17 22:22:46
    Dome Frame - Day's End
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  • Dave Pentecost2013-10-27 12:49:05
    The Nature of Code - Cosmos Edition

    That's what +Daniel Shiffman is calling the special workshop in our dome with his +Processing  students from ITP.

    https://github.com/shiffman/The-Nature-of-Code-Cosmos-Edition

    We spent the day yesterday kicking it off, with an introduction by Dan and myself, a visit from +Andres Colubri who has created the dome projection code library, and initial Processing sketches from the students. They will return next week to show the results of their work in the dome.

    Some quick photos of Dan and his students below. Dome photos to come next week. (See also my previous post on Processing in the dome - https://plus.google.com/u/0/116599331662269985445/posts/4Jh9ri6rd3r )
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  • Dave Pentecost2013-09-20 23:10:37
    Maya incised bone, line drawing, first 3D print

    Actually, a 3rd try after some fails. Had to get the line size right for the printer. This and my fossils are my contribution to Maker Faire tomorrow.

    Incised bone, circa 8th century AD Maya, Tikal, Guatemala, drawn by Linda Schele and first published in 1986, posted to the Schele Archives online by Justin Kerr, downloaded and converted to SVG and STL. Detail from the complete drawing.
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  • Dave Pentecost2013-08-13 15:04:20
    New work starting on Airstream

    With office and kitchen finishing, planetarium building, organization packing and moving, IT and phone installation, it's been a full summer. The Airstream recording studio has waited until now, when the duct silencers have arrived. They are the metal boxes on the left. AC supply and return will come down the wall, across that back alley floor, into the bottom of the trailer. Then cable ducts and power can be installed under the floor frame, floors and new interior sound baffles and perforated metal skin can be installed. And we are on our way.
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  • Dave Pentecost2014-02-19 18:02:41
    In Chiapas. Jungle tomorrow.
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  • Dave Pentecost2014-01-26 14:33:57
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    Via +Julio Poisot De María

    I've seen some of these before, but this is a great collection.

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    The 33 Most Beautiful Abandoned Places In The World

    In the photo: El Hotel del Salto in Colombia.

    Look the others: http://imgur.com/a/D9iDC

    #amazing   #photography   #photos   #photooftheday  
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  • Dave Pentecost2013-07-07 16:28:34
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    This looks like the start of a good series.

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    The Way the Universe Changed

    At the end of the 1800s we finally knew how the universe worked.  Newton’s laws of motion and gravity had been studied for 200 years, and had become the pinnacle of scientific precision.  James Clerk Maxwell had unified the electricity, magnetism and light into a single elegant theory, and Darwin’s theory of evolution explained how living things were connected.  There were still mysteries to be explored, but it seemed the grand structure of the universe was now known.  We lived in a clockwork universe, where cause led to effect, where simple laws governed complex mechanisms.  It was a proven world, as I’ve written about in an earlier series of posts (http://goo.gl/6MVg0).  

     At the time it was generally thought that the nagging mysteries such as the structure of atoms and the structure of the universe would eventually come into the Newtonian fold.  But they didn’t.  Instead, small mysteries became large ones.  The physical laws we thought we understood didn’t always apply.  Understanding atoms and light would require a radically new way of looking at the universe.  Some of the most cherished scientific ideas of precision and determinism would have to be discarded or revised.  Science would undergo a quantum revolution.

    Between 1900 and 1950 our understanding of the universe underwent a fundamental shift from a classical, clockwork universe to a quantum universe of probabilities and interactions.  It was a shift that revealed a universe that was larger, younger and more profoundly complex than we had imagined.

    This shift can be summarized in six simple equations shown below.  Each one was a step toward modern quantum theory.  

    1. The more you have, the faster it is gone.
    2. Sometimes you have to make a quantum leap.
    3. Every temperature has a color.
    4. Light is a wave, except when it’s not.
    5. What you observe depends on how you observe it.
    6. There are some things you can never know. 

    So this week we’ll look at each of these equations, how we came to understand them, and how they changed our view of the universe forever.  We’ll start with the first one tomorrow.  It describes radioactive decay, and it was the first clue that certain effects don’t have a mechanical cause.

    The quantum revolution starts tomorrow.
  • 6 plusses - 1 comments - 2 shares | Read in G+
  • Dave Pentecost2013-04-22 12:55:51
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    The Most Beautiful Wisteria Tree in the World

    In the Ashikaga Flower Park in Tochigi, Japan sits an incredibly gorgeous wisteria tree that's often referred to as the most beautiful in the whole world. The largest and oldest in Japan, the tree is the main attraction at the flower park as visitors flock to see it in full bloom. Dating back to approximately 1870, the 143-year-old tree has branches that are supported by beams, which creates a a stunning flower umbrella.

    http://www.mymodernmet.com/profiles/blogs/ashikaga-flower-park-beautiful-wisteria-tree
  • 6 plusses - 1 comments - 2 shares | Read in G+
  • Dave Pentecost2013-03-02 02:48:25
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    Yes!

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    NEW PRODUCT – WiFi Portable Microscope – Usable With Android/iPad/iPhone
    http://www.adafruit.com/products/1276

    NEW PRODUCT – WiFi Portable Microscope – Usable With Android/iPad/iPhone – As electronics get smaller and smaller, you’ll need a hand examining PCBs and this little USB microscope is the perfect tool. Its smaller and lighter than a large optical microscope but packs quite a bit of power in its little body. There’s a high quality 640×480 camera sensor inside and an optical magnifier that can adjust from 5x (for basic PCB inspection) to 200x (for detailed inspection). Eight mini white LEDs are angled right onto whatever you’re examining so you get enough lighting to see, and are smoothly adjustable via a dial on the side.

    Unlike our USB microscopes, this ‘scope is WiFi based. This means that instead of having a cable or wireless-usb-dongle type connection, there’s a WiFi access point inside the camera enclosure. When you turn it on, it will create a new hotspot just for the camera, so that any tablet or smartphone (such as an iPad/iPhone/Android/etc) can connect to the camera and view the microscope’s video output. This isn’t possible with a USB microscope as many tablets and phones don’t have a USB port and even if they did, there wouldn’t necessarily be drivers available for the camera.

    Comes with the microphone, charging cable, CD with software and manual. A stand is not included, the photo above shows it with our articulated aluminum stand (which works great). While this camera is more expensive than a wired-variety, there’s nothing like it for when you want to view the output on a smartphone or tablet!

    In stock and shipping now!
    http://www.adafruit.com/products/1276

    #tools  
  • 6 plusses - 1 comments - 2 shares | Read in G+
  • Dave Pentecost2013-11-30 22:34:58
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    Keeping an eye on this.

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    Very cool looking 3d scanner, will be about $350, from Occipital (http://occipital.com/). Via +Mike Zyda on facebook.
  • 3 plusses - 5 comments - 2 shares | Read in G+
  • Dave Pentecost2013-09-22 06:26:33
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    Our dynamic Earth.

    An amazing simulation of Earth's wind and water currents.

    Via +NASA +NASA's Earth Observatory 
  • 5 plusses - 0 comments - 3 shares | Read in G+
  • Dave Pentecost2014-02-05 03:48:39
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    Anatomy and Functional Areas of the #Brain.

    http://goo.gl/vagtXc
  • 6 plusses - 3 comments - 1 shares | Read in G+
  • Dave Pentecost2013-03-17 16:50:46
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    Nice...
  • 5 plusses - 2 comments - 2 shares | Read in G+
  • Dave Pentecost2013-03-17 16:18:44
    Palenque Planet

    Not the best planet photo I've done but a nice memory of my favorite place, 2 weeks ago.
  • 6 plusses - 5 comments - 0 shares | Read in G+
  • Dave Pentecost2014-03-26 15:45:52
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    How I feel in the dome.

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    ::: Traditional Art | Surrealism
    ZDZISLAW BEKSINSKI 

    Zdzislaw Beksinski – 24 February 1929 – 21 February 2005, was a renowned Polish painter, photographer, and sculptor who is best known as a fantasy artist.
    Beksinski’s art was gloomy and grim, though he himself was known to be a pleasant person, and though somewhat shy, took enjoyment from conversation.

    ::: Read More at Bon Expose: 
    http://bonexpose.com/featured/zdzislaw-beksinski/

    #Art   #Surrealism   #ZdzislawBeksinski  
  • 8 plusses - 0 comments - 1 shares | Read in G+
  • Dave Pentecost2013-06-04 03:55:16
    Get mad. One way or the other.
  • 4 plusses - 1 comments - 3 shares | Read in G+
  • Dave Pentecost2014-02-12 17:03:01
    Airstream Update

    Future recording studio, now not so far off.

    Wiring conduits under the frame - PVC pipes - and first layer of final floor going in. Plans for custom items in the works. Slow but careful progress. The team does better work than I would, always a good sign. 
  • 8 plusses - 2 comments - 0 shares | Read in G+
  • Dave Pentecost2013-03-04 19:42:29
    Boots Up
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  • Dave Pentecost2013-09-06 14:29:16
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    Here's a handy little graphic in case you get lost in our local cloud and need to orient yourself according to the galactic wind.

    http://go.nasa.gov/1ej9L3B
  • 4 plusses - 3 comments - 2 shares | Read in G+
  • Dave Pentecost2013-12-04 04:43:41
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    Lenz’s law & why do magnets fall more slowly through a copper tube?
    When you move a magnet past a metal plate or through a copper tube you generate a current.
    The current it’s self generates magnetic fields which oppose the magnetic field generated by the magnet impeding it’s movement
    The key is in explaining that the law runs both ways; current generates magnetic fields, and magnetic fields generate current.

    Read more:
    http://regentsprep.org/Regents/physics/phys08/clenslaw/
    Story and gif via The Crafty Chemist
  • 7 plusses - 1 comments - 1 shares | Read in G+
  • Dave Pentecost2013-09-17 09:22:31
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    A Time-Lapse of Burning Man 2013 As Seen From Miles Away Atop a Mountain
  • 6 plusses - 0 comments - 2 shares | Read in G+
  • Dave Pentecost2013-05-21 14:43:51
    Top riser takes shape

    East Village Planetarium. 2 weeks to projector installation
  • 7 plusses - 3 comments - 0 shares | Read in G+
  • Dave Pentecost2013-04-24 22:58:35
    Dome update - second round of panels

    They're working their way around and up. They'll finish this weekend.

    In other news, computer floors in control and production rooms are scheduled for install next week, custom cove lighting review on Friday, ramps under construction, cabling and IT install starting soon, AC ductwork for Airstream spec'd, painters wrapping up third floor, electricians installing power and ethernet boxes for video room, cafe/kitchen tiling in progress, dozens of adjustments and corrections... No time for future shock, every day is a tsunami. In a good way.
  • 7 plusses - 3 comments - 0 shares | Read in G+
  • Dave Pentecost2013-04-16 21:31:27
    Dome frame begins

    The East Village Planetarium

    Att: +Neil deGrasse Tyson Fan Club 
    +nick normal +Dale Dougherty 
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  • Dave Pentecost2013-05-17 00:35:03
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    For anyone interested in building immersive environments, Elumenati launched Omnity 2 on the Unity3D asset store. This video introduces the technology that easily enables any Unity3D game to to be projection mapped with Elumenati's Omnifocus projection systems.

    Please share with anyone you know that uses Unity3D or is interested in projection mapped immersive installations.

    Unity3D Projection Mapping for Immersive Environments with Omnity 2
  • 5 plusses - 1 comments - 2 shares | Read in G+
  • Dave Pentecost2013-04-15 15:10:52
    Dome Day

    The stars are in alignment today - installers from England (by way of Oswego), forklift from Brooklyn, semi trailer truck full of curved aluminum parts from Chadds Ford , Pa.

    Loaded in, ready to start construction and raising of the planetarium dome.

    Here's one quick clip of some of the frame pieces, which have to be carried up the stairs. More as it happens.
  • 6 plusses - 4 comments - 0 shares | Read in G+
  • Dave Pentecost2014-01-17 03:52:56
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    The looping animation is captivating in its simplicity – not that there isn't a lot to observe in the split-second scene. Jupiter's Great Red Spot makes an appearance, and the planet's speedy rotation about its axis – the fastest in our solar system – is readily observed. (You can't tell from this footage, but Io is tidally locked with Jupiter, just like our moon is with Earth; i.e. Io rotates at the same frequency as Jupiter, keeping the same face toward the planet at all times.) I'm especially fond of the shadow, cast by Io, that clearly appears on the face of the planet as it pirouettes its way across the frame.

    http://io9.com/i-could-watch-this-time-lapse-of-jupiter-and-io-all-d-1499302798
    #space   #astronomy   #sciencesunday  
  • 8 plusses - 1 comments - 0 shares | Read in G+
  • Dave Pentecost2014-01-15 05:09:57
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    Here are some views from lower down, showing the light source (a Mini Maglite LED flashlight/torch).
  • 8 plusses - 1 comments - 0 shares | Read in G+
  • Dave Pentecost2013-10-29 01:38:31
    Premiere of Dark Universe at Hayden Planetarium

    A couple of shots. Great evening, amazing production. Director +Carter Emmart was in fine form in his traditional premiere blue jumpsuit.
  • 8 plusses - 1 comments - 0 shares | Read in G+
  • Dave Pentecost2013-05-24 04:03:25
    Risers - 3 out of 5

    Should finish the framing of the planetarium risers tomorrow. 
  • 8 plusses - 1 comments - 0 shares | Read in G+
  • Dave Pentecost2013-04-26 02:04:58
    Into the Black Hole

    Actually, the state of the dome installation at end of day today. I had to leave early for the Beatniks class (girl iPad orchestra) so I went back this evening to see how the team had done. They may actually close up tomorrow. Next step, risers. Then projection and server.
  • 5 plusses - 5 comments - 0 shares | Read in G+
  • Dave Pentecost2013-12-29 23:54:23
    Palenque 360 Revisited

    I've posted this before. Haven't been back in a while and hoping to get there in February. Stitched 360 tagged for Photosphere so G+ will let you navigate.
  • 7 plusses - 0 comments - 1 shares | Read in G+
  • Dave Pentecost2013-03-11 15:25:39
    Dark Side of the Jam

    NASA and Unity sponsored a game development jam this weekend and many NASA 3D space assets are now available free on the Unity Asset Store. Games resulting from the jam are being uploaded to the site.

    NASA Spaceflight Assets - https://www.assetstore.unity3d.com/#/content/756
  • 3 plusses - 1 comments - 3 shares | Read in G+
  • Dave Pentecost2013-08-09 23:07:04
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    Yep.

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    Photo of the Day!

    On Top of the World.  This shot by Dean Carriere is a strong contender for "Best Selfie Ever."  

    #GoPro   #Selfie   #Everest  
  • 4 plusses - 4 comments - 1 shares | Read in G+
  • Dave Pentecost2013-05-25 12:18:34
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    Brilliant.

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    http://planetmaker.wthr.us/
  • 4 plusses - 4 comments - 1 shares | Read in G+
  • Dave Pentecost2013-05-19 03:34:34
    New Arduino+WiFi+Linux Board

    The Arduino Yún.

    Did you miss this, +Mike Barela ?
  • 4 plusses - 4 comments - 1 shares | Read in G+
  • Dave Pentecost2013-09-30 22:09:42
    Farewell to the seasons

    To summer and to fall - this splendor won't last. And we're draining the pipes and closing up. 
  • 7 plusses - 2 comments - 0 shares | Read in G+
  • Dave Pentecost2013-09-11 23:10:16
    3D Printed Fossil

    Love the gnarly contour whorls from the printing process. First photo is the bottom/raft side - which shows the whorls a little more clearly.

    Afinia printer, normal quality, .2mm setting
    Fossil from http://www.3d-fossils.ac.uk/home.html
  • 7 plusses - 2 comments - 0 shares | Read in G+
  • Dave Pentecost2013-04-01 21:32:20
    My first 123D Catch attempt

    Not bad as far as it goes. But I'm not sure why it had no luck with the back of the doll. I shot 38 photos going all around the model. Maybe lighting issues? Does anyone have any experience with this to share?

    (I used the web app for this: http://apps.123dapp.com/catch/ )
  • 3 plusses - 3 comments - 2 shares | Read in G+
  • Dave Pentecost2013-08-07 05:06:01
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    The Sun's Magnetic Field is about to Flip:
    http://my.tecne.ws/11JP1fT

    "It looks like we're no more than 3 to 4 months away from a complete field reversal," says solar physicist Todd Hoeksema of Stanford University. "This change will have ripple effects throughout the solar system."

    SOURCE: nasa.gov
  • 6 plusses - 1 comments - 1 shares | Read in G+
  • Dave Pentecost2013-07-23 13:06:47
    From Disney Research, via +Anthony FLORES and +Laurence Gonsalves 

    "We developed an interactive design system that allows non-expert users to create animated mechanical characters. "
  • 6 plusses - 1 comments - 1 shares | Read in G+
  • Dave Pentecost2014-02-18 23:46:38
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    It’s Snack Time in the Cosmos

    "Black holes, the ultradense collapsed objects predicted by Einstein’s theory of general relativity, are often depicted as voracious feeders whose extraordinary gravity acts like a one-way membrane: Everything is sucked in, even light, and virtually nothing leaks out.

    Now, for the first time, astronomers may have a chance to watch as a giant black hole consumes a cosmic snack."

    Read more from +The New York Timeshttp://goo.gl/vPB4Yy
  • 5 plusses - 0 comments - 2 shares | Read in G+
  • Dave Pentecost2013-11-16 03:08:17
    My brilliant wife in the Wall Street Journal

    A good little feature about the Girls Club and the huge party we had this week. Six rooms for dining, including the Airstream studio. Giant cocktail party. Packed the planetarium five times. Made it into the WSJ print edition.

    Now we can get on with it. More fun to come.
  • 6 plusses - 3 comments - 0 shares | Read in G+