People have survived a fall from 30,000 feet. Not many and most are wreckage riders not jumpers. I've never hear of anyone walking away however.

By the way you meant sun correct? You don't foll Neal Adams do you?

And how much free hydrogen do you have lying around? The point is to get free hydrogen it requires a greater amount of energy then is produced by oxidizing it. Hydrogen isn't an energy source. It's a battery. Now hydrogen fusion actually is pretty inefficient. At least not at the core of brown dwarfs. Hydrogen … Read more

Again no no material backs the dollar. If it was then first we'd have more gold then we have spent. We have. And our creditors could demand gold for payment. They can't. Reagan said it best when he said the dollar was backed by the goodwill of the american government.

*gdp

We've not been on the gold standard for years. The american dollar is based of the US GPA.

True most ammonia is produced by natural gas not crude but the point is still there. I was including both as part of oil when I should have said fossil fuels.

Gold's chemical properties and rarity are what dive it's price. First gold is noncorrosive so it never tarnishes, meaning jewelry and coins of actual gold retain their luster for Thousands of years. Next gold is malleable meaning it was simple for ancient people to work with it. Applications like gold leaf aren't options with other … Read more

Expanded notation means you look at each digit individually. So 15 is 5 in the ones place and 1 in the tens. In the problem you have above you have 7 in the millionths place and a 5 in the hundred thousands place. The previous poster us scientific notation to simplify this. 10^N is a … Read more

Peek oil doesn't look at current growth rate to be 50 years but we'll see, we'll go with that number for now, however the amount of fissionable material on earth could last us millenia if used correctly. We've not even started taping thorium for reactors and breeder reactors aren't being used to prevent nuclear proliferation … Read more

Actually it's pretty bleak. People focus on the fact we'll have to switch from gas to other energy sources but that's a miner effect. The biggest thing is we'll have to find another way of producing fertilizer just to feed the 7 billion + people on earth. Other things like some medicines and plastics needed … Read more

Hydrogen isn't an energy source.

The sky is blue because it is tinted by the oxygen contained in the atmosphere.

Giving some a smile will do.

Try numeric patterns(1234, 159, etc), common number sequences (1701, 8472, 8675309 etc), parts of the phone number (#555-876-1195 password 1195). Or you can brute force it. There are only 10,000 combinations and on average you'll find the pass before 5,000th.

Typically it's under the battery.