CDs as flywheels, on the ISS
Tag Archives: ISS
Toil and Trouble
More bubbles in microgravity
I find it interesting that, contrary to terrestrial experience with drops on a surface, the colliding drops tend to scatter rather than coelesce. In microgravity the drops are spherical, which is the minimum-energy configuration, so I expect this presents an activation barrier of sorts. The collision needs to be strong enough to perturb the shape of the drops, so that combining them doesn’t represent a configuration that requires more energy than is present.
Piiiiics iiiiin Spaaaaaace!
No, not the Swinetrek. The International Space Station turns 10
This month marks the 10th anniversary of the first launched module of the International Space Station (ISS). The module Zarya was lifted into orbit on November 20th, 1998 by a Russian Proton rocket lifting off from Baikonur, Kazhakstan. In the decade since, 44 manned flights and 34 unmanned flights have carried further modules, solar arrays, support equipment, supplies and a total of 167 human beings from 15 countries to the ISS, and it still has a ways to go until it is done. Originally planned to be complete in 2003, the target date for completion is now 2011. Aside from time spent on construction, ISS crew members work on a good deal of research involving biology and physics in conditions of microgravity. If humans are ever to leave the Earth for extended periods, the ISS is designed to be the place where we will discover the best materials, procedures and safety measures to make it a reality. (32 photos total)