Sorry to burst your bubble about the hydrogen economy, but nobody seems to be paying attention to the huge amount of energy needed to obtain hydrogen, and then compress it to thousands of pounds per square inch. We can get hydrogen by chemical reaction from natural gas losing energy in so doing, or by electrosis of water consuming much energy. Now if we used renewable energy to provide the electricity for electrosis this "sounds" neat. But, all of you are grossly underestimating the huge amount of electicity required to bring this about. And then much more power is needed to compress it. I'd like to see a chemical engineer, chemist, or physicist calculate the total energy needed to produce enough energy to drive the Chevy Volt 40 miles. And we haven't even discussed the cost of building the infrastructure yet.
The Galaxy Tab 10.1, much like its Limited Edition sibling that we reviewed last month, is ever-so-slightly thinner than the iPad 2, a slate that most sane individuals (and competitors, for that matter) would confess is the market leader today.
The most commented posts on Engadget over the past 24 hours.
Now that we've thrown 'em off the trail, use the form below to get in touch with the people at Engadget. Please fill in all of the required fields because they're required.
Sorry to burst your bubble about the hydrogen economy, but nobody seems to be paying attention to the huge amount of energy needed to obtain hydrogen, and then compress it to thousands of pounds per square inch. We can get hydrogen by chemical reaction from natural gas losing energy in so doing, or by electrosis of water consuming much energy. Now if we used renewable energy to provide the electricity for electrosis this "sounds" neat. But, all of you are grossly underestimating the huge amount of electicity required to bring this about. And then much more power is needed to compress it. I'd like to see a chemical engineer, chemist, or physicist calculate the total energy needed to produce enough energy to drive the Chevy Volt 40 miles. And we haven't even discussed the cost of building the infrastructure yet.