From TFA:

Maybe the previously stated efficiencies for plants were calculated when extracting sugars? This process tries to capture the electrons before sugar is made. Obviously the 'quantum efficiency' isn't what they'll harvest, but I would think they could get a reasonably large percentage.

While the overall efficiency of this system is yet to be determined, it probably has a much lower embedded energy (i.e. the energy that went into producing it) than PV. This system seems to use a carbon-nanotube backing, no silicon in it.

Also, how many PV panels reproduce? (Answer: none that I'd want.)

He should have avoided all controversy and just said that most nuclei have a shape like a football.

"Good morning"?

Is there a list of centenarians with Slashdot ID's? Just asking...

Hopefully, after realizing that they would be here for that much longer, people would take better care of it.

(scroll down when you're done laughing)

Yeah, it sounds like we'd be screwed. But this doesn't account for people who die from accidents, non age-related diseases, or other causes. This would initially only benefit those who take care of their health, and are lucky. By the time the other leading causes of mortality are eradicated, we'll probably have enough other tech that this won't be a problem (for our great-grandchildren).

I think we need more details on this stalker. For example, do they have a Slashdot user name which reveals nothing about them while complaining others don't post irrelevant personal details that do nothing to support the conversation?

Instead of water, this sprinkler cart sprays juvenile insults.

I noticed on that list the H.M.S. Flambeau. Isn't that just asking for trouble? Hope it had a good fire suppression system...

There was also a U.S.S. Flambeau

He's probably hoping all the Dysons come to see him at the same time and angrily surround him.

He will then claim that he has the only Dyson sphere made out of real Dysons.

If they truly believed in their cause, the activists would volunteer to take the place of the animals they set free.

I think the scientists affected by this would agree.

There's your problem- you're using face recognition. Looks like there's a need for an extension so the recognition software can look further south...

You just need the right size pockets.

As of April 2013, the odds of a Mars impact are about 1 in 8000. Looks like it may pass within the orbit of Deimos, but probably not, due to the remaining uncertainty.

Welcome to every new technology, ever.

Pressure relief valve. It's mentioned in the link. The article is discussing liquid Hydrogen, which is not being discussed for use in cars.

1. How fast do you think the Hydrogen is being released? Under normal conditions, normal thermal transfer should keep the tank warm.
2. If it's a problem, waste heat will be used to warm the tank.

Not sure what you mean by this- why would a fuel that was 20 times more efficient than Hydrogen be useless in space?

Solar panels are improving, but you need to look at the total energy balance. Don't forget about the embedded energy used in making a solar panel, and that you can easily have 100-1000x the surface area growing vegetation than you would have covered by solar panels. They're complementary technologies, each with their own market. No one technology will replace fossil fuels, but this tech will give Hydrogen a bigger place in the energy market.