Hi. I bought an old Belstaff waxed cotton jacket on ebay, and it stinks! It's not just the fabric inner lining that smells, but the actual waxed cotton too. The instructions say to hand-wash in cold...
We call it 2004 relative to the birth of Christ, and I know there was the whole Julien/Gregorian calendar thingy, but what dating system did ancient people use? I know that the earth's year could be...
If the sun is middle aged ( 4.5 of 10 billion years ), and the Hydrogen is continually being converted to Helium, why is the ratio of Hydrogen to Helium 70:28 instead of approx. 49:49?