Unlike AM and FM radio, shortwave radio stations can be heard thousands of miles away, even around the world under the right conditions. The most powerful stations may use up to 500,000 watts to broadcast their signal around the world.
The American space shuttle is the most complex machine ever built. It is made up of 2.5 million parts and it's engines produced 44 million horsepower on takeoff. The space shuttle program closed on July 21, 2011, after having brought 3 millions pounds of cargo into space.
93 percent of all water on board the International Space Station is recycled. NASA has even installed a high tech water filter that turns urine into water. The US astronauts drink it, but the Russian astronauts refuse, although they don't mind handing over their urine to the Americans for filtering.