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Comment Re:Get ye some 802.11a. (Score 1) 251

It's not that hard to make a bench top Faraday cage. Just make a wooden frame, and nail some copper mesh all over it. It won't be as good as the professional ones, but it doesn't need to be.

The problem is that people coming by your booth will now see a kludgy mess of wood and wire, instead of your nice, elegant demo.

That is what they see if you build it that way. If you instead put your demo inside a glass or plastic box, with metallic tint coating on the inside and bright lighting inside, they'll see your demo under glass with the sides covered with mirrors. Whether they realize that they're also looking through a mirror is irrelevant.

Comment Convenience (Score 1) 271

If you have a car with an electric source it is convenient to be able to direct the electricity where it is needed. I don't need an emergency generator often enough to own one, but it would be nice to be able to use my car that way. If the car can also be powered with gasoline, then it becomes more reliable in a likely emergency because it sometimes takes days to repair storm damage. I'm not intending to use it long-term, so I don't care how many miles per millimeter of tectonic movement I might be getting, I'd just want to avoid having to eat everything in the freezer within two days. As tempting as that sometimes might sound.

Comment Re:So they're using background radiation only? (Score 1) 164

So I won't be able to watch TV, listen to the radio, nor use my cellphone when the warehouse next door is filled with RFID tags.

This also is only "everlasting" and "green" for as long as the nuclear power plants are feeding the broadcasters with cheap energy. Unless the antennas can generate enough energy from the cosmic microwave background radiation.

Comment Advantages (Score 1) 3

Some of the reasons may be due to advantages or side effects.
  • The comments might be implemented by an external service, which is convenient for the sysadmin due to not needing to add much to the host site. The comments service might be using third-party logins, and the host site might have no commenter logins at all.
  • External logins reduces effort for maintaining the accounts, which is tempting for comment system programmers and admins.
  • Having few commenter logins makes antispam processing easier. The comment history can be used for trust across sites.

Submission + - India: 'Massive' uranium find in India (bbc.co.uk)

GillBates0 writes: "BBC reports that India's southern state of Andhra Pradesh may have one of the largest reserves of uranium in the world. India is planning to set up about 30 reactors over as many years and get a quarter of its electricity from nuclear energy by 2050."

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