but I gather that most steel gas cylinders store gas compressed as liquid, keeping them that way not by cooling, but by mechanical force.
Yes, increasing the storage pressure raises the boiling point. The amount of pressure necessary to keep hydrogen liquid at room temperature is only found in places like the center of Jupiter. Those tanks you see sitting next to Airgas don't hold that much pressure.
. I've noticed that gas cylinders tend to be cold (even frosty) compared to the environment though, so I'm not sure where that fits in
Depending on what type of gas you are talking about it's because the contents of those cylinders are stored at cryogenic temperatures. Those cylinders are double-walled and insulated but a little bit of heat leaks in anyway. In order to keep the tank from exploding they are equipped with pressure release valves that will blow off every once in a while to release the pressure built up from the slowly-boiling liquid.
Any pressurized cylinder will get cold as you use its contents because the gas is expanding as it leaves the tank.
presumably a compressed gas should be warmer
Yes, the act of pressurizing a fluid makes it warmer but it doesn't magically stay warm forever. It eventually cools down to ambient temperature just like anything else would.
Humans have shown over and over that in large groups we use all the resources available, don't slow or restrain ourselves in time to save ourselves, and unless there are consistent, strict rules and provisioning in place, we exhaust available resources.
It's just a matter of creating a good method of hydrogen creation and storage.
...which doesn't exist yet. So using the materials and technology we have at the moment, any practical deployment of hydrogen storage would have a much lower energy density than its hydrocarbon counterpart.
Even if you consider CO2 to be a pollutant burning biodiesel in a well-constructed engine is equally clean since you aren't adding any carbon to the atmosphere that wasn't already there.
The energy density of hydrogen as compared to liquid hydrocarbons is pathetic. The best use of hydrogen would be to to synthesize hydrocarbons, of course at that point you'd wonder why you bothered with hydrogen at all instead of just making biodiesel from algae.
Sheila Bair hasn't enforced the (non-discretionary) Prompt Corrective Action law on any of the largest TBTF banks.
Henry Paulson lobbied for the repeal of the last vestiges of Glass-Steagall while he worked for Goldman Sachs and then committed extortion by threatening Congress with martial law unless they handed over $700 billion to a group of unapprehended felons.
The FBI warned about about an epidemic of mortgage fraud back in 2004 yet the last two administrations have not indicted a single major player in the industry.
But by all means, ignore them and pay attention to the small fry browsing porn.
Maybe if he was arguing that adobe is intentionally trying to kill this product by making it suck the headline would be justified but I didn't see anything in the article mentioning that.
How can you be responsible for killing someone that ran out in front of you when you were driving safely within the speed limit and taking necessary precautions when driving? Exactly, you're not responsible.
I don't know what legal jurisdiction you live in but anywhere I've ever driven in the US the driver is always responsible for hitting a pedestrian.
No, it's the equivalent of taking out a loan so you can build a workshop and (hopefully) use the profit from stuff you produce there to pay off both debts.
That's how debt is supposed to work. The data shows that it's not working any more. In fact at the present time it's actually running in reverse.
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The Russians claim that it works...
I don't know where to begin.
Yes, increasing the storage pressure raises the boiling point. The amount of pressure necessary to keep hydrogen liquid at room temperature is only found in places like the center of Jupiter. Those tanks you see sitting next to Airgas don't hold that much pressure.
Depending on what type of gas you are talking about it's because the contents of those cylinders are stored at cryogenic temperatures. Those cylinders are double-walled and insulated but a little bit of heat leaks in anyway. In order to keep the tank from exploding they are equipped with pressure release valves that will blow off every once in a while to release the pressure built up from the slowly-boiling liquid.
Any pressurized cylinder will get cold as you use its contents because the gas is expanding as it leaves the tank.
Yes, the act of pressurizing a fluid makes it warmer but it doesn't magically stay warm forever. It eventually cools down to ambient temperature just like anything else would.
ORLY?
...which doesn't exist yet. So using the materials and technology we have at the moment, any practical deployment of hydrogen storage would have a much lower energy density than its hydrocarbon counterpart.
So how much energy does it take to cool hydrogen to liquid form and keep it there? Do you expect carry around liquid hydrogen in your car?
Even if you consider CO2 to be a pollutant burning biodiesel in a well-constructed engine is equally clean since you aren't adding any carbon to the atmosphere that wasn't already there.
The energy density of hydrogen as compared to liquid hydrocarbons is pathetic. The best use of hydrogen would be to to synthesize hydrocarbons, of course at that point you'd wonder why you bothered with hydrogen at all instead of just making biodiesel from algae.
Sheila Bair hasn't enforced the (non-discretionary) Prompt Corrective Action law on any of the largest TBTF banks.
Henry Paulson lobbied for the repeal of the last vestiges of Glass-Steagall while he worked for Goldman Sachs and then committed extortion by threatening Congress with martial law unless they handed over $700 billion to a group of unapprehended felons.
The FBI warned about about an epidemic of mortgage fraud back in 2004 yet the last two administrations have not indicted a single major player in the industry.
But by all means, ignore them and pay attention to the small fry browsing porn.
We've known for a long time but it's good that McAffee finally admitted it.
Did you even watch the video?
Even better question: Were they actually unarmed?
That all goes out the window when you selectively edit the video to gloss over the fact that the "innocent civilians" were packing RPGs
Maybe if he was arguing that adobe is intentionally trying to kill this product by making it suck the headline would be justified but I didn't see anything in the article mentioning that.
...like millions of skeptics crying out, "See? I told you that's what they were really after all along!"
I don't know what legal jurisdiction you live in but anywhere I've ever driven in the US the driver is always responsible for hitting a pedestrian.
Not quite as fast as AT&T, but it's worth it not to deal with all the BS from the larger carriers.
There is no mess like traditional reprocessing, because all the byproducts stay in fluid form.
Cooldown isn't necessary because there is no handling of the spend fuel - it's just fluid piped between tanks.
There's still huge potential for fission power. It's just that civilian reactor technology is basically stuck in the 1970s.
Try not paying your income tax and see just how quickly the IRS pulls out the literal guns.
Why am I not surprised that Columbia Business School is researching ways to lie more effectively? They must be trying to catch up to Harvard.
If that's the case your machine must be infected with something. Nathan's Economic Edge is a financial blog, not a malware site.
Diabetes is 5% disease and 95% lifestyle choice.
No, civilization does not require a state.
That's how debt is supposed to work. The data shows that it's not working any more. In fact at the present time it's actually running in reverse.