How Air-Breathing Rockets Will Work Mercury Explained Uranus Explained The Solar System Explained Our Amazing Solar System How did Lockheed win NASA's Orion contract? Why is NASA playing with marbles? What if we lived on the moon? Why are space shuttles delayed so frequently? Why is Pluto no...
At the time, NASA engineers determined that the power requirements to launch such a heavy vehicle were too great for any of the rockets they had. Their solution was to create spacecraft that could dock with other vehicles. At first, the engineers considered launching an unmanned container ...
This animation shows how fast a rocket must go to leave every planetSkye GouldRebecca Harrington
"If Captain Kirk were constrained to move at the speed of our fastest rockets, it would take him a hundred thousand years just to get to the next star system," said Seth Shostak, an astronomer at the Search for Extraterrestrial Intelligence (SETI) Institute in Mountain View, California, in ...
Most board games are too long and involved to be addictive like puzzlers and shooters, but they offer strategic gameplay and multiplayer experiences that you just can't get in short, fast-paced video games. Some of the best German-style board games have been released for the iPad (Carcassonne...
Once upon a time you'd have found gadgets like this only in space rockets or jumbo jets; now they're in virtually every car, many laptop computers, and all kinds of gadgets such as smartphones and games consoles. Let's take a closer look at what they are, what they do, and how ...
a均匀平整 Even smooth[translate] afigure out how to use rockets for space travel 推测如何为太空旅行使用火箭[translate]
How many rockets have landed on the moon? What are the sparks under the space shuttle? How long did the space shuttle program last? What was the speed of Apollo 11? How fast was the Sudbury Basin comet going? How fast do rogue planets move?
How Air-Breathing Rockets Will Work How Space Shuttles Work How SpaceShipOne Works Behind the X Prize More Great Links X-43A Main Page A Closer Look at the X-43 Mission CNN.com: Experimental NASA jet reaches Mach 10 - November 17, 2004 BBC News: Hypersonic jet ready for launch - March ...
That's why fast-moving things—jet airplanes, high-speed trains, space rockets... and even leaping salmon—tend to be long, thin, and tube-shaped, compared to slower-moving things like boats and trucks, which are less affected by drag....