Trivia Quiz for Science Junkies 
by William Lund 

Ok, I admit it, I am a science junkie. Iím not really smart enough to understand all of the stuff I read, but I still find it fascinating. It probably goes hand in hand with being a lover of science fiction. 

When you think about it though a lot of the latest science news reads like science fiction. Recently Iíve read about how scientists have successfully created a rudimentary invisibility cloaking device, mounted mini video cameras on beetles and can remote control their flight by putting electrodes in their brains, and that kind of thing. 

Just a few days ago I read about a successful first step for a space elevator. Some company was able to build a small elevator that climbed a one mile long cable dangled from a helicopter powered by a laser beam directed at it from the ground two miles below the helicopter. 

So for no other reason than I feel like it, here is a science trivia quiz for all of you science junkies.

1. How fast--in miles per hour---do the fastest messages transmitted by the human nervous system travel?
A: 180 to 200 miles per hour.

2. What temperature does the tungsten filament in an electric light reach when the light is turned on?
A: 2,577 Degrees C, or 4,664 degrees F.

3. What percentage of the average human brain is water?
A: 80 percent.

4. What do the letters represent in the acronym DNA -- the protein substance inside each cell that transmits genetic information from parent to child?
A: Deoxyribonucleic acid.

5. How long does a nanosecond last?
A: one billionth of a second.

6. How may different chemical reactions occur in the normal human brain every second?
A: At least 100,000.

7. How long is a day on Mars?
A: 24 hours, 37 minutes and 22 seconds.
8. How many calories are consumed during an hour of typing?
A: 110-- just 30 more an hour than while sleeping.

9. Before the barometer was discovered, what animal did German meteorologists use to predict air pressure changes?
A: The frog. Frogs croak when the pressure drops.

10. How much further from Earth does the moon's orbit move every year?
A: About 1.5 inches. The moon has been inching away from Earth for billions of years.

11. By definition, what is the lifting capacity of one unit of horsepower?
A: The ability to raise 33,000 pounds one foot high in one minute. 

12. What synthetic fabric, introduced in the 1970s, is made of Teflon?
A: Gore-Tex.

13. What was a 13.5-carat diamond used for on the Pioneer 2 space probe to Venus in 1978?

A: Instrument-viewing ports. It was the only substance that was both transparent to infrared light and also able to withstand the red--hot heat and tremendous pressure of the Venusian atmosphere.

14. What altitude does a vehicle have to exceed for its pilot and passengers to be officially recognized as spacemen?
A: According to NASA 400,000 feet, or 75-1/4 miles, above the earth.

15. Q: What do you call a substance containing only one kind of atom?
A: An element.

16. Q: What elementary particle's antiparticle is the positron?
A: The electron.

17. Q: What theory of physics proposes that energy is not transferred continuously but in discrete amounts>
A: The quantum theory.

18. What radioactive element is extracted from carnotite and pitchblende?
A: Uranium.

19. What suntan lotion was developed by Dr. Ben Green in 1944 to protect pilots who bailed out over the Pacific?
A: Coppertone.

20. What's short for "light amplification by stimulated emission of radiation"?
A: Laser. 

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