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How hard is the patent application process?

science.howstuffworks.com/innovation/new-inventions/patent-application-process.htm

You're convinced you have a great, marketable idea, but you're also aware someone could steal the idea if you don't have a patent. It's time to investigate the process of protecting your invention.

How has NASA helped improve our air and water?

science.howstuffworks.com/innovation/nasa-inventions/nasa-improve-air-and-water.htm

How has NASA helped improve our air and water? Visit HowStuffWorks to see how NASA has helped improve our air and water.

How has NASA helped save firefighters?

science.howstuffworks.com/innovation/nasa-inventions/nasa-save-firefighters.htm

How has NASA helped save firefighters? Visit HowStuffWorks to learn how NASA has helped saved firefighters' lives.

How have NASA space helmets changed optics?

science.howstuffworks.com/innovation/nasa-inventions/nasa-space-helmets-changed-optics.htm

NASA space helmets are nifty devices that allow astronauts to operate in the hostile environment of space, but did you know that the technology behind them has also directly benefitted eyeballs here on Earth? Learn more about NASA and optics.

How in the World Does a Waterfall Freeze?

science.howstuffworks.com/nature/climate-weather/atmospheric/frozen-waterfall.htm

It might seem that the constant rushing of water over a falls would keep it from freezing, but that isn't always the case. Check out the science behind the phenomenon of the frozen waterfall.

How incomplete is the fossil record?

science.howstuffworks.com/environmental/earth/geology/incomplete-fossil-record.htm

The fossil record is far from being complete. Just how incomplete is the fossil record? Learn about the fossil record in this article.

How is GPS used in spaceflight?

science.howstuffworks.com/how-is-gps-used-in-spaceflight.htm

GPS is great, but it's kind of Earth-centric. If we have our hearts set on traveling to distant planets and faraway stars, then it's time to come up with a new navigation system. NASA, of course, has an idea.

How is carbon dioxide eliminated aboard a spacecraft?

science.howstuffworks.com/carbon-dioxide-eliminated-aboard-spacecraft.htm

To get carbon dioxide eliminated aboard a spacecraft you need a system similar to SCUBA. Learn about carbon dioxide elimination.

How is green nanotechnology being used?

science.howstuffworks.com/environmental/green-science/green-nanotechnology.htm

How is green nanotechnology being used? Learn about green innovations and technologies in the field of green nanotechnology.

How is oxygen made aboard a spacecraft?

science.howstuffworks.com/oxygen-made-aboard-spacecraft.htm

Oxygen made aboard a spacecraft is done through the use of oxygen generators. Learn about oxygen made aboard a spacecraft.

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