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My daughter was recently told by one of her professors that books would be damaged if stored in plastic containers. My question is why. Since the semester is over and she won't be able to ask him till...
Hi I'm trying to understand this technique for testing wether a polar curve is symmetrical about the line θ=α. I am told that if f(2α-θ) = f(θ) then θ=α is a line of...
I have a phone line I have at home which hasn't been used for months, and I don't know its number. I can get a dialling tone but can't seem to dial out. I need to find out the number of this line....
Just starting to study this .First buy was 12x50 --field5.5 96m/1000m which are quite good can see the moon craters.But now I would like a telescope not too expensive say ?100-?150.Could some one...
Can you dismiss these comments made by a meteorologist, Augie Auer, from New Zealand so lightly? Man's contribution to greenhouse gases is so small, almost ineffective, it will be a joke in 5 years...
As Pluto is no longer classed as a planet what are the astrologers going to do? Surely they can't say that Pluto now has no significance, so will they be adding other Kuiper belt objects, or...
I ride an off-road motorcycle and would very much like a bit more power for I frequently find myself in a cloud of dust behind my mates bikes. I have done a bit of research on Avgas racing fuel. As...
Why are the planets in our Solar System all spherical. There are millions of irregular shaped ateroids and stuff but all the planets are round - why? Also, Pluto is no longer classed as a planet. For...
A pair of earplugs have a Noise Reduction Rating of 33dB and a Single Number Rating of 39dB. Would these both be able to block a sound of 36dB (regardless of frequency)? How can you be assured to...