Above the ground near San Bernardino
A group of coelacanths (Latimeria chalumnae) huddle in an ocean cave off the coast of Grand Comore. These ancient fish are enigmatic and difficult to study. They are listed as critically endangered by the IUCN. | +
The physics of droplets freezing is important for understanding applications like ice formation on airplane wings. Here we see how a warm droplet deposited on a cold plate freezes. A freezing front advances through the drop, which expands vertically as it freezes. Ultimately, the expansion of the ice and the surface tension of the water create a pointed singular tip.
This photograph uses fluorescent dye to visualize the wake behind a rigid flat plate pitching about its leading edge. A vortex is shed from the plate twice in each cycle of oscillation. These vortices entangle, producing the structured wake above. The top photo shows a side view of the wake, the bottom photo is a top view. (Photo credit: J. Buchholz and A. Smits)
To all sexes, genders, to all people: Seriously, even dropping off a bag of food (clean out your pantry) will make a big difference. Or the spare 65 cents in your pocket, every cent counts. If everyone donates a little…. it will amount to a whole lot.
Please Repost, Thanks. In Solidarity-Occupy Riverside
