Blue Sky Below Us

Blue BathSTS-116 Mission Specialists Robert L. Curbeam, Jr. (left) and Christer Fuglesang participate in the first of the mission’s three planned sessions of extravehicular activity as construction resumes on the International Space Station. Spacewalks – Blue Sky: 2006 credit: NASA Breathtaking views of Spacewalks with our blue planet below. Facts: Extra-vehicular activity (EVA) is work done by an astronaut away from the Earth, and outside of a spacecraft. Hint: Use “J” and “K” keys to navigate from picture to picture. Hello! Space, Horizon, Endeavour Backdropped by the blackness of space and Earth’s horizon, Space Shuttle Endeavour, docked to the Pressurized Mating Adapter on the International Space Station, is featured in this photograph taken during the mission’s first planned spacewalk. Blue Aurora Borealis Spacewalks – Blue Sky: credit: Unkown Our Blue PlanetSpacewalks – Blue Sky: credit: NASA The southern extremities of GreenlandSpacewalks – Blue Sky: credit: NASA Astronaut Robert L.

Your Age on Other Worlds Want to melt those years away? Travel to an outer planet! <div class="js-required"><hr> This Page requires a Javascript capable browser <hr></div> Fill in your birthdate below in the space indicated. The Days (And Years) Of Our Lives Looking at the numbers above, you'll immediately notice that you are different ages on the different planets. The earth is in motion. The top-like rotation of the earth on its axis is how we define the day. The revolution of the earth around the sun is how we define the year. We all learn in grade school that the planets move at differing rates around the sun. Why the huge differences in periods? Johannes Kepler Tycho Brahe Kepler briefly worked with the great Danish observational astronomer, Tycho Brahe. Here you see a planet in a very elliptical orbit. Kepler's third law is the one that interests us the most. Let's just solve for the period by taking the square root of both sides: The Gravity Of The Situation Isaac Newton ©2000 Ron Hipschman

The Worlds of David Darling Best of VIM Tips, gVIM's Key Features zzapper Tips Home Vim Tips Blog (NEW) Cygwin VimTools Buy Vim Book Support VIM Submit to Social Websites The Fabric of the Cosmos with Brian Greene: Watch the Complete NOVA Series Online Forget about inclined planes and pulleys. In this series from the PBS program NOVA, physics is presented as an exotic, mind-bending realm. The Fabric of the Cosmos, first broadcast in November, follows up on the 2003 Peabody Award-winning The Elegant Universe. Like the earlier series, which was centered around String Theory, The Fabric of the Cosmos deals with ideas that are on the cutting edge of scientific theory. The series is arranged in four parts of approximately 50 minutes each.