This gorgeous visualization shows the flow behind a flapping foil. Flow in the water tunnel is from right to left, with dye introduced to show streamlines. A flapping foil is a good base model for most flapping flight as well as finned swimming - anything that oscillates to create thrust. As the foil flaps, vorticity is generated and shed along the trailing edge, creating a regularly patterned wake of trailing vortices. (Video credit: R. Godoy-Diana)
I Only Live Twice
one life for myself, one for the rest.
one life for myself, one for my dreams..
just a mad man. '-'
Gego (Gertrud Goldschmidt) - Reticulárea, 1969-1980s, aluminum and stainless steel wire
(via proofmathisbeautiful)
Lucas Simoes - Unportraits (2010) - Cut photographs and acrylic sheets
(via forwardslashreality)
One of my fav pics: refining some palladium from 10% Pd/C. This awesome color is caused by the aqua regia and the palladium ions, I just love it!
Have You seen my portfoio? It’s over here: http://labphoto.tumblr.com/tagged/portfolio
Egyptian plover (Pluvianus aegypticus)
photo by anacm.silva on Flickr
“Photographing this bird was one of the main reasons that took us two days to travel through the interior of The Gambia to Georgetown. It’s a difficult bird to find since it has small very localized ranges. It was very hard to photograph due to the intense heat and high humidity. Our lens would easily get blurred.”
Egyptian plover or “Crocodile Bird” - an almost mythical bird. :-) On the road to Janjanbureh - Kau-ur Wetland
The Gambia.
(via rhamphotheca)
