If demand goes up, availability will too, bringing down the price. Most hydrogen for industrial use is made from natural gas through steam reformation, and the pilot hydrogen filling stations truck the hydrogen in steam-reformation plants. Eventually, it will make more economic sense to manufacture the hydrogen… » 11/17/14 11:08am 11/17/14 11:08am

This right here. This is a nuclear ramjet. That's right girls and boys, a jet engine powered by an open-core, completely unshielded nuclear reactor. It was intended to be put in the "Project Pluto" missile, which would drop several hydrogen bombs on the USSR before auguring into a major city. Because nuking a city… » 11/01/14 12:39am 11/01/14 12:39am

Any sales process that involves haggling means the seller is a crook. Period. They are trying to sell it to you for higher than the market price, or they would just offer the market price to begin with. And then when they try to use their ill-gotten gains to make potential competitors illegal, that's just textbook… » 10/24/14 11:42am 10/24/14 11:42am

Kinda. The X-37B (the Air Force vehicle) uses hydrazine for fuel, which besides being toxic, is also highly carcinogenic. Thus the suits to keep the USAF personnel from all coming down with lung cancer. The original NASA version (X-37A) was to have used non-toxic (but explosive) high-test Hydrogen Peroxide, but USAF… » 10/17/14 11:34pm 10/17/14 11:34pm

Except hydraulic hybrids are not really cheap or efficient. High-pressure hydraulic hybrids require even more maintenance than a conventional diesel truck, and even then make a very inefiicient vehicle into a somewhat inefficient vehicle. An electric truck would draw nearly all its power off the mains (at a tiny… » 10/07/14 10:54am 10/07/14 10:54am