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Comment Re:Are there better uses for this technology? (Score 1) 120

As I recall compressing and storing hydrogen is a very expensive process. One problem is that hydrogen likes to destroy most metals. Any piping, compressor, or container must be made of expensive metals or lined with glass or something.

While this is true, the really expensive part is the high-pressure tank. It has to be fairly extreme to actually hold the hydrogen, let alone the issue of sealing it against the gas which is basically a solved problem.

In any scenario where the whole plant is surrounded by seawater and the hydrogen is going to be used right there and doesn't need to be transported anywhere else, you could use the sea itself as your pressure vessel. Provided the glass or other hydrogen-safe lining is strong enough to support its own weight then the increasing pressure inside could be matched by the pressure outside by lowering the tank deeper into the sea. (About 10m/bar)

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Hello World! 199

stoolpigeon writes "Hitting middle age has been an interesting time. I catch myself thinking about how well kids have it today and sounding a lot like my father. One difference is while my dad was happy to teach me about sports or cars, we never spent any time knocking out code together. I think he did realize that home computers were important and I will always be grateful for the Commodore Vic-20 he brought home one day. It was a substantial purchase for our household. I spent many days copying lines of basic from magazines and saving the results to cassette tapes. In my home today we have a considerably better situation, computing wise. There are usually a couple laptops running as well as the desktop machine upstairs. My kids take for granted what I found to be amazing and new. Still, that's all pretty normal and I'd like to give them an opportunity to go deeper if they are so inclined, just like we give them opportunities to explore other skills and pursuits. With that in mind I brought a copy of Hello World! home a few weeks ago, and the response from my oldest has been surprisingly enthusiastic." Keep reading for the rest of JR's review.

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