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Submission + - The Mystery Of Glenn Seaborg's Missing Plutonium: Solved

KentuckyFC writes: In the early 1940s, Glenn Seaborg made the first lump of plutonium by bombarding uranium-238 with neutrons in two different cyclotrons for over a year, The resulting plutonium, chemically separated and allowed to react with oxygen, weighed 2.77 micrograms. It was the first macroscopic sample ever created and helped win Seaborg a Nobel prize ten years later. The sample was displayed at the Lawrence Hall of Science in Berkeley until the early naughties, when it somehow disappeared. Now nuclear detectives say they've found Seaborg's plutonium and have been able to distinguish it from almost all other plutonium on the planet using a special set of non-destructive tests. The team say sample is now expected to go back on display at Seaborg's old office at Berkeley.
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Hands On With MakerBot's 3D-Printed Wood 72

angry tapir writes: 3D printing has lost a bit of its novelty value, but new printing materials that MakerBot plans to release will soon make it a lot more interesting again. MakerBot is one of the best-known makers of desktop 3D printers, and at CES this week it announced that late this year its products will be able to print objects using composite materials that combine plastic with wood, metal or stone.

Comment Re:ASN.1/SMI (Score 1) 242

Well, they are not languages that you will be paid to program in either. The are domain-specific knowledge that a programmer in a common language (C++, Java) may need to know for a specific job. Companies may be looking for a "C++ programmer for network development that preferably knows ASN.1". If they are hiring an "ASN.1 programmer for network development that preferably knows C++", run away fast.

Comment Re:some modern electronic gagets can not be fixed (Score 1) 840

With the exception of BGA a decent soldering iron is fine for SMD. I can solder a 144 pin 0.5mm QFP quicker than I can solder a through hole 40 pin DIP component.

I would love to see you fix a board with a bad QFP with only a soldering iron. A hot-air rework station is a far more appropriate tool for removing said QFP if it is in need of replacement. We are talking about fixing broken electronics after all.

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