At school we were taught that black absorbs heat and white reflects heat. If that is so why is it that in Africa where it is hot the population is black and therefore absorbs heat and get too hot and...
i put my lack of manual dexterity down to my age and having not grown up with playstations / x-boxes, but have discovered that i really like puzzle solving point and click games - where you have to...
At 186,000 miles per second it takes about 8 minutes for light to reach here from the sun. Heat, I believe, does not travel so fast, so 1. How does it seem to get here at the same time? and 2 .How...
Considering the structure of sodium chloride, why does solid sodium chloride melt when it is heated strongly, and why does molten sodium chloride conduct electricity? Also, Considering the detailed...
Starting at a height of 2m 4 people push a sled down a 20* incline, cross 5m of ice and go up a 30*incline before coming to rest 3m above the ice. All four members of your team must be in the sled...
so I heard on the television tonight (in italy) in a quiz game one of the prizes was a reaction misile (a toy recomended for children of age 14 and over) that "ran" on vinegar and sodium bicarbonate...
Whats the big deal about North Korea. Aren't the western media simply being paranoid and hypocritical? I mean surely we had to test our Nuclear weapons when we were developing them.?! no one kicked up...
Can anyone tell me the name of some really really good dance/trance classics that i will of definately heard of. Im getting more and more into this kind of music and knwo there are loads of tunes that...
Does anyone know, or can suggest, what you would see or encounter if you could position yourself right on the 'edge' of the universe - what would happen if you stretched out your arm? Physicists may...
How widely is the metric system used in the USA? I know that NASA use kilometres/hour etc. but is the system used in other engineering projects or by schools and colleges?
Can somebody tell me why humans can totally ignore important things but will waste time over rubbish. Someone a couple of days ago asked a question about the world running out of oil, now this is...
(I was told this ages ago, and the answer - but I can't remember what it was, so lets see if you will get it) You have a very long cord. You twist it around at a speed close to, but not reaching the...
