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hi all for the perennially nosy among us Here is a list of the new questions added to the question archive at http://www.howstuffworks.com/question-archive.htm : - Are fluorescent bulbs really more efficient than normal light bulbs? If they are, why? - If someone coughs in my house, how long can his germs remain contagious? - How do traffic lights detect that a car is waiting? - What is sodium nitrate? Is it in any way harmful? - How does gravity work? - How does a chicken wrap the shell around an egg? - Why can't I use a cell phone on an airplane or in the hospital? - What does the VTEC system in a Honda engine do? - In a kitchen oven, what is the difference between the "bake" setting and the "broil" setting? - What causes me to gain 2 or 3 pounds during the day and then lose 2 or 3 pounds when I sleep? - Do you know why some web pages end in "htm", others end in "html", still others end in "asp" and so on? Why all the different extensions? - How do they superimpose the first down line onto the field on televised football games? - How are astronomers able to measure how far away a star is? - Do you know what causes me to get cramps in my legs when I exercise, or even worse in my sleep? <http://www.howstuffworks.com/books.htm> janet paterson 52 now / 41 dx / 37 onset 613 256 8340 po box 171 almonte ontario canada K0A 1A0 a new voice: <http://www.geocities.com/SoHo/Village/6263/> <[log in to unmask]>