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 October 11, 2007
 ASK THE EXPERTS
Have a science or technology question? Send it in.
Current Questions

How can graphite and diamond be so different if they are both composed of pure carbon?

Why do migratory birds fly in a V-formation?

How does short-term memory work in relation to long-term memory? Are short-term daily memories somehow transferred to long-term storage while we sleep?

Relative to the solar system, where is the Oort cloud? And what is its size and shape?

Questions by Subject:
Astronomy questions: Ask about planets, space, stars, Mars, NASA, and more
Relative to the solar system, where is the Oort cloud? And what is its size and shape?
Could the International Space Station (ISS) serve as a base, way station or repair hangar for satellites and craft from complex missions beyond its orbit?
Biology questions: Ask about cells, plants, animals, human phsyiology, and more
Why do migratory birds fly in a V-formation?
Floyd Landis tested positive for increased testosterone on the day of his spectacular stage win at the Tour de France last year, after testing negative on previous days. Can a large dose of the hormone produce such an immediate and profound improvement?
Chemistry questions: Ask about chemical reactions, everyday chemistry, atomic interactions, and more
How can graphite and diamond be so different if they are both composed of pure carbon?
Why do apple slices turn brown after being cut?
Computer questions: Ask about computer chips, information technology, computer viruses, and more
What is a neural network and how does its operation differ from that of a digital computer? (In other words, is the brain like a computer?)
How do GPS devices work?
Environment questions: Ask about extreme weather, global warming, clouds, and more
Why do we have a hurricane season?
To what degree is a person's body weight affected by the ambient temperature and humidity? Do we conserve or release water as the climate changes?
Geology questions: Ask about magnetic fields, rivers, oceans, volcanoes, and more
What is quicksand?
What is a geyser?
Mathematics questions: Ask about algebra, geometry, calculus, game theory, paradoxes, theories, and more
What is the significance of E = mc2? And what does it mean?
Why is a minute divided into 60 seconds, an hour into 60 minutes, yet there are only 24 hours in a day?
Medical questions: Ask about health, the human body, cancer, drugs, heart disease, and more
Floyd Landis tested positive for increased testosterone on the day of his spectacular stage win at the Tour de France last year, after testing negative on previous days. Can a large dose of the hormone produce such an immediate and profound improvement?
How is everyday onboard exercise on the International Space Station changing the rate of bone loss of its occupants? Can individual differences between humans explain differences in bone loss in microgravity?
Physics questions: Ask about gravity, quantum theory, relativity, string theory, and more
Could the International Space Station (ISS) serve as a base, way station or repair hangar for satellites and craft from complex missions beyond its orbit?
Do corked bats allow baseball players to hit farther?

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