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Comment "Explorations" had a good interview on this (Score 1) 581

On an episode of "Explorations" about a year ago Michio Kaku had an interview with David Goodstein of Caltech. Unfortunately the archive was deleted but it was on May 27, 2008. Prof. Goodstein claimed that if we were to switch to all Nuclear power for our electricity needs, we would run out of Uranium in 20 years.
Earth

CERN Physicist Warns About Uranium Shortage 581

eldavojohn writes "Uranium mines provide us with 40,000 tons of uranium each year. Sounds like that ought to be enough for anyone, but it comes up about 25,000 tons short of what we consume yearly in our nuclear power plants. The difference is made up by stockpiles, reprocessed fuel and re-enriched uranium — which should be completely used up by 2013. And the problem with just opening more uranium mines is that nobody really knows where to go for the next big uranium lode. Dr. Michael Dittmar has been warning us for some time about the coming shortage (PDF) and has recently uploaded a four-part comprehensive report on the future of nuclear energy and how socioeconomic change is exacerbating the effect this coming shortage will have on our power consumption. Although not quite on par with zombie apocalypse, Dr. Dittmar's final conclusions paint a dire picture, stating that options like large-scale commercial fission breeder reactors are not an option by 2013 and 'no matter how far into the future we may look, nuclear fusion as an energy source is even less probable than large-scale breeder reactors, for the accumulated knowledge on this subject is already sufficient to say that commercial fusion power will never become a reality.'"

Comment Re:ok, so now what (Score 2, Interesting) 64

If we're going to have graphene consumer electronics though, it's going to be based on the wafer-scale CVD manufacturing process developed in Korea and MIT.

Trust me, CVD synthesis of graphene is in the earliest of early stages. The problem is that neither group (Korea nor MIT) have figured out how to get the graphene off the nickel layer that catalyzes the reaction. There are other ways of making graphene that are much further along, such as epitaxial growth on silicon carbide.

Comment I prefer computer labs for work (Score 1) 571

This is unfortunate. The two universities that I am very familiar with both have very large computer labs where people can print out things. I am wholly reliant upon the university currently to print things out. I HATE toting around my laptop and so I prefer to use campus resources. That said, my department made the switch from physical computers to remote desktops. It's worked out well, but I have to say I don't like not being able to pop in and check my e-mail between classes without having to lug my laptop around like a ball and chain.

Comment Re:Cool (Score 5, Informative) 141

That's actually pretty cool. By concentrating the light, they need less photovoltaic material per square foot of land used for solar. I'm curious how the efficiency of photovoltaic cells varies with the concentration of light

For a constant temperature, efficiency goes up logarithmically with light concentration. A solar cell with 1 sun on it is going to be less efficient than one with 500 suns on it assuming you have a way to cool the cells. Past a certain point the efficiency drops like a rock due to lack of cooling the cells and this reduces the voltage you can produce by about 2.3mV/C past room temp.

Comment Facebook has had an evil ToS for awhile (Score 1) 409

I regret ever putting any information about myself on that website. Even though I deleted some of my old stuff (like e-mail), Facebook still holds the data hostage. Anyway, I found this funny:

and a new Facebook group called 'People Against the new Terms of Service' that has added more than 10,000 members today."

God that is the laziest form of protest ever. Yeah let's join a group on the service we are protesting to show how much we disagree with this new policy! If you take such exception, stop using the damned service.

Comment Re:What about AMD? (Score 5, Informative) 139

If Intel is able to shrink its die size every 12 months AMD is in trouble.

For what it's worth "tick-tock" is actually alternating between a new architecture and a process shrink every 12 months. "Q4" in the summary means Q4 2009.

Am I the only one feeling we might have reached the point of diminishing returns, at least for desktops, in the last 2-3 years. All the shrinkage past 90 nanometers just feels underwhelming. Stuff beyond Pentium 3 has not been revolutionary, performance wise, for a desktop.

I hate to be snarky but you sound like one of those people who bought the crap about the "Megahertz Myth". Processor clock rate has little to do with performance. I'll agree that pentium 4 was underwhelming, but Core was a huge hit and saw huge performance, especially toward the ones that were released in early this year that used the high k dielectric.

Transportation

Appropriate Tech, 300mpg Car Top 2008 Innovators 155

longacre writes "While some giggles were floating around about the irony of a Microsoft product (Photosynth) finding itself on the same top 10 products list as a toilet, the true stars of last night's annual Popular Mechanics Breakthrough Awards were innovations of far more consequence. MIT professor Amy B. Smith won the marquis Leadership Award for her work on building simple, low-cost technology to help developing countries. Joining Smith from the appropriate technology field were a group of CalTech students who created all-terrain wheelchairs for the disabled, and a Procter & Gamble exec who developed a water purifying powder for the third world. Aptera Vehicles founders Steve Ambro and Chris Anthony made the cut for their 300mpg Typ-1e, which is expected to hit showrooms by the end of this year. Other winners ranged from the Mars Phoenix Lander team, to the developers of a low-cost cancer test, to the creators of Spore."
Games

Dead Space Wants To Scare You 195

Kotaku recently ran a story questioning whether the survival-horror genre still exists, and how Dead Space may or may not fit into it. With reviews for the game starting to come in, Ars Technica reports that the game is, indeed, both scary and good. Gamespy wrote up a Dead Space survival guide, and Gamasutra has a lengthy interview with the game's senior producer. In the production of the game, the developers studied things like car wrecks and war scenes to increase the level of realism. They also want the game's sounds to terrify players, including appropriately timed silence. The launch trailer is also available, though it does contain spoilers.

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