Technology


Black Hawk Rotor Vortex Wake

“Aft view of the UH-60 helicopter rotor detatched eddy simulation showing the 3D nature of the vortex wake. Note the separated flow leaving the centerbody in the middle of the image, and the uneven wake separation due to the blade motion.

Investigator: Neal Chaderjian, NASA Ames Research Center, Moffett Field, Ca
Visualization: Tim Sandstrom, NASA/ Ames

More info available here: www.nas.nasa.gov/SC12/demos/demo1.html

Follow us on Twitter: www.twitter.com/NASA_Supercomp ”

http://www.flickr.com/photos/nasa_nas/8226815959/

Animated top view here

Image 1: Basket star (Astroglymma sculptum). Teresa Zubi, 2005 (source

Image 2: Giant Basket Starfish (Astrophyton muricatum) juvenile on Common Sea Fan (Gorgonia ventalina) Belize. Chris Newbert (source)

Image 3: Crystalline Entity encounters the Enterprise-D (comparison made in this excellent photoessay)

More info: http://echinoblog.blogspot.com/2010/01/gorgonocephalus-because-weird-is-what.html

Gorgonocephalus eucnemis, a species of basket star (starfish) from the Arctic

Photo by John Rix: http://www.flickr.com/photos/fathomthis/1795586640/

Basket Star reaching into the void (Gorgonocephalus eucnemis)

Queen Charlotte Strait, BC, 7 Tree Island, 2007

http://www.fathomthis.ca/simple_gallery/print_gallery.html

More info:

http://echinoblog.blogspot.com/2010/01/gorgonocephalus-because-weird-is-what.html

http://en.wikipedia.org/wiki/Gorgonocephalus_eucnemis

(I dressed up like a basket starfish last Halloween!)

Moravec bush robots! A design for fractal branching ultra dextrous robots, proposed by Hans Moravec:

http://www.islandone.org/MMSG/HansMoravecRobotBush.html

Image 1: Woefully unsourced! Clipped from a scanned PDF, more than likely… possibly from Mind Children by Hans Moravec?

Image 2Moravec, Hans; Easudes, Jesse; Dellaert, Frank (1999). “Fractal branching ultra-dexterous robots (Bush robots)”. NASA Advanced Concepts Research Project. PR-Number 10-86888.

(Wikipedia on Bush robots)

Spirosketch necklace and bracelet set from Polymath Design Lab!

http://www.polymathdesignlab.com/made-with-lasers/spirosketch/

Available at their Etsy store

Bucky Ball Pendant by Shannon Henry (image source)

More info on buckminsterfullerene

Pendant from Polymath Design Lab, and similar ones are available at their Etsy store, although I don’t see this particular wooden version (or is it leather?).

They have other cool designs too!

“What I am trying to do. As a conscious means of hopefully competent participation by humanity in its own evolutionary trending while employing only the unique advantages inhering exclusively to the individual who takes and maintains the economic initiative in the face of the formidable physical capital and credit advantages of the massive corporations and political states I seek through comprehensively anticipatory design science and its reduction to physical practice to reform the environment instead of trying to reform man also intend thereby to accomplish prototyped capabilities of doing more with less whereby in turn the wealth-regenerating prospects of such design-science augmentations will induce their spontaneous and economically successful production by world-around industrialization’s managers all of which chain reaction-provoking events will both permit and induce all humanity to realize full lasting economic and physical success plus enjoyment of all the Earth without one individual interfering with or being advantaged at the expense of another.”

[whew]

— Buckminster Fuller, Earth Inc. (1973)

http://en.wikipedia.org/wiki/Buckminster_Fuller

http://en.wikiquote.org/wiki/Buckminster_Fuller

Waltzing Volvox, from the Goldstein Lab at the University of Cambridge

Volvox is a colonial green algae (more info at Wikipedia)

Check out more movies on their YouTube channel and lab website

(And someone else has uploaded a more colorful video of dancing volvox here: http://www.youtube.com/watch?v=9pjW1cMfTz8)

Glider trails (Conway’s Game of Life)

Image 1: A 3D-printed version based on this thing that you can download and print! (image by Berend) 

Image 2: Source: http://en.wikipedia.org/wiki/Glider_(Conway’s_Life)

Caption: “A three-dimensional view of a glider, with previous generations visible going down the z-axis. The c/4 period is clearly visible as “stacks” of cells that remain alive for successive generations.” (cc-by-sa)

Nanoscale Saffman-Taylor instabilities

Photo 1: Pola Goldberg-Oppenheimer, University of Cambridge, Dept. of Engineering (source)

Another great photo here, but it’s a bit too wide to publish: Pola Goldberg-Oppenheimer, University of Cambridge, Dept. of Engineering (source, with more info on research)

Entimus imperialis, the aptly-named diamond weevil! Full of stars *and* nanoscale optics!

More info here: http://www.wired.com/wiredscience/2011/12/diamond-weevil-rainbow-scales/

Original article: Wilts et al. 2012. “Hemispherical Brillouin zone imaging of a diamond-type biological photonic crystal.” J. R. Soc. Interface 7 July 2012 vol. 9 no. 72 1609-1614. doi: 10.1098/​rsif.2011.0730

 http://rsif.royalsocietypublishing.org/content/9/72/1609

Photo 1: André Martins (2009): http://www.flickriver.com/photos/andregm/3405780756/

Photo 2: André Martins (2009) http://www.flickriver.com/photos/andregm/3373677468/

Photo 3: Composite of photos, posted here: http://diamenty.wordpress.com/2012/03/28/diamentowy-chrzaszcz/

Photo 4: Arrangement from Wired article; photos by Bodo Wilts

Photo 5: Bodo Wilts

Pachyrrhynchus gemmatus, a weevil with opalescent photonic crystal scales

Photo 1: Robert Corkery: Natural self-assembled photonic paintings- inspiration for a post-pointillist

Photos 2 and 3:  Seago et al. 2009. “Gold bugs and beyond: a review of iridescence and structural colour mechanisms in beetles (Coleoptera).” J. R. Soc. Interface 6 April 2009 vol. 6 no. Suppl 2 S165-S184 doi: 10.1098/​rsif.2008.0354.focus

http://rsif.royalsocietypublishing.org/content/6/Suppl_2/S165.full