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Comment Re: Going to be dead on arrival (Score 2) 106

1. And? You forgot the minus signs for F and C.

Like you're the only one who figured that out. So much for my quick & dirty wikipedia cut & paste job. Crucify me. :)

2. Are you telling me they can't put it in a tank designed to store liquid hydrogen?

Read my subsequent post about what that tank would be like.

3. OK.

Yeah, Ok.

4. So what, it's not like having a 4x bigger tank is a problem, or by factor of 4 did you mean 1000x as it could be read.

Your post seems to be trying to say it's not possible without actually having any good reasons why.

Read my comment below about size & weight requirements for the tank. At best hydrogen is tricky stuff to store and tends to be most practical when done at large scale. It is bad enough working with hydrogen gas...cryogenic liquid hydrogen is a whole different level of crazy. I can't begin to list all the problems in a reasonable amount of time. Even seasoned NASA engineers have problems dealing with the stuff.

Comment Re: Going to be dead on arrival (Score 1) 106

Large, heavy duty, high pressure cryogenic storage cylinders storing low density, near absolute zero temperature, dangerously volatile combustible gasses with an exceptionally low flammability limit (4% concentration in air) tend to be somewhat armored, therefore thick and heavy. Given they are also large that multiplies the weight factor.

Compressed liquid cryogenic hydrogen would probably be a reasonable choice for a large rail locomotive. But I'd be concerned about having a similar hydrogen storage tank on a truck on an open highway.

Comment Re: Going to be dead on arrival (Score 2, Informative) 106

1. Liquid hydrogen boils above 20.28 Kelvin/423.17 F/252.87 C.
2. It is impractical to store liquid hydrogen on a truck.
3. Hydrogen is typically stored as a compressed gas or as a metal hydride.
4. Liquid hydrogen has less energy density by volume than hydrocarbon fuels such as gasoline by approximately a factor of four.

Comment Re:Accenture (Score 1) 87

>Wikipedia disagrees with you.

Silly, it doesn't, because:

1. I wrote my comment from information taken directly from the Wikipedia page for Accenture.
2. I was a Senior Consultant at Andersen Consulting for 5 years after the split from Arthur Andersen and know what I wrote to be true.

I defy you to identify any inaccuracy in my earlier comment, Anonymous Coward. :)

Comment Re:Accenture (Score 1) 87

Accenture is the current name of the former Andersen Consulting, which was originally the tech services arm of the accounting company Arthur Andersen. Andersen Consulting split from Arthur Andersen into a completely separate business unit in 1989 and subsequently broke all ties with Arthur Andersen in August of 2000. Andersen Consulting then changed its name to Accenture in January 2001.

In summary, Accenture split from Arthur Andersen 13 years before Arthur Andersen's June 15, 2002 conviction in the Enron scandal.

Submission + - Iran has signed a nuclear accord (

divide overflow writes: According to the New York Times, "Iran and a group of six nations led by the United States have agreed to a historic accord to significantly limit Tehran’s nuclear ability for more than a decade in return for lifting international oil and financial sanctions against Iran, a senior Western diplomat involved in the negotiations said on Tuesday. The deal, which President Obama had long sought as the biggest diplomatic achievement of his presidency, culminates 20 months of negotiations."

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