Archive for February, 2008

What is the highest and lowest elevation in the United States?

Wednesday, February 27th, 2008 Posted in Earth Science, Geology | No Comments »

At 20,320 feet high, Mt. McKinley in Alaska is the highest point in the United States (as well as all of North America). The highest point in the continental United ... Read more..

How do you weigh an object in space?

Wednesday, February 27th, 2008 Posted in Astronomy | No Comments »

Since you can't actually weigh an object in a weightlessness environment, astronauts use body mass measurements to determine a difference in weight. This isn't as trivial as it seems however. Read more..