Srt252
- Science
Researchers Develop a Penny-Sized Nuclear Battery
Nuclear power has long provided steady energy sources for everything from homes to deep space probes. Now researchers have begun developing a tiny nuclear battery the size of a penny that could provide power in a smaller, lighter, and more efficient package.
11.8.2009 at 05:57pm - Comment by Srt252false. tritium is used on watch dials. DO YOUR RESEARCH! "Tritium paint on watches is a mixture of tritium and phospor. Tritium is naturally radio-active and needs no external source of light or charge to work. Tritium does not glow. As it decays, tritium emits beta radiation, which is a bunch of excited electrons that in turn excite the electron in the phosphor atoms making them emit photons, or light, as they return to their ground (non-excited) state: the phosphor GLOWS."
- Science
Researchers Develop a Penny-Sized Nuclear Battery
Nuclear power has long provided steady energy sources for everything from homes to deep space probes. Now researchers have begun developing a tiny nuclear battery the size of a penny that could provide power in a smaller, lighter, and more efficient package.
11.2.2009 at 03:14pm - Comment by Srt252Oh and since you can make everything radioactive to use in fission bombs I guess you recall all the kittens in the world before terrorists turn them into fissionable materials for use in nukes. And all other matter for that instance.
- Science
Researchers Develop a Penny-Sized Nuclear Battery
Nuclear power has long provided steady energy sources for everything from homes to deep space probes. Now researchers have begun developing a tiny nuclear battery the size of a penny that could provide power in a smaller, lighter, and more efficient package.
11.2.2009 at 03:10pm - Comment by Srt252Guess we should recall all the gun sights, watch dials, and exit signs then before terrorists steal them all to make nukes. Oh and all those people with Pu238 powered pacemakers too, before the terrorists rip their hearts out :P (and even the radiation that leaks from those is less per year than the avg American receives naturally per year)
- Science
Researchers Develop a Penny-Sized Nuclear Battery
Nuclear power has long provided steady energy sources for everything from homes to deep space probes. Now researchers have begun developing a tiny nuclear battery the size of a penny that could provide power in a smaller, lighter, and more efficient package.
11.1.2009 at 03:59pm - Comment by Srt252Some of you guys seem a little unclear on the power source of these things... Nuclear batteries usually use tritium, or in NASA's case, Pu238, to power their "batteries". Pu238 is NOT the plutonium used in nukes, that is Pu239, Pu238 is relatively safe, requiring only 2.5mm of shielding to protect from its radioactive emissions, and Tritium is an isotope of hydrogen, which only decays alpha and beta particles, and NEITHER of these isotopes are used in nukes. No terrorist potential there. Another point you guys seem to be confused on: NUCLEAR BATTERIES DO NOT USE NUCLEAR CHAIN REACTION LIKE NUCLEAR POWER PLANTS. Nuclear batteries use the radioactive decay of particles (usually by directly converting the captured beta particles into electricity in a process involving "betavoltaics") as power, not chain reactions like nuclear power plants (the chain reactions are the dangerous part). Nuclear batteries (aka radioisotope batteries) are almost perfectly safe! Tritium is used in hundreds of ways, youre exposed to it all the time (gun sights, watch dials, exit signs...)
- DIY
Do I Need to Buy Microsoft Office?
Not necessarily. It’s hard to ignore MS Office, but you don’t need to blow 400 bucks to get your work done. In fact, you don’t need to install any programs at all. Sign up for the free Google Docs (documents.google.com) or Zoho (zoho.com), and you can do everything in a Web browser. The programs look similar to Word, Excel and PowerPoint and offer all the same features (save for a few lesser-used ones like certain spreadsheet formulas). Zoho even kicks in a few extra applets like a Wiki-building tool. Best of all, these applications let you access your files from any computer that’s online. If you don’t have reliable Internet access or are more comfortable installing programs on your computer, there’s no shortage of competition, either.
6.12.2008 at 12:04pm - Comment by Srt252college software discounts for the win =)
- DIY
Handheld Sunbeam
Ralf Ottow was standing in front of his bathroom mirror one morning when he noticed that his forehead was sunburned. He hadnt been out tanning—his homemade flashlight had fried his skin.
1.30.2008 at 07:56pm - Comment by Srt252Coooooool
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December 2009: Best of What's New
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