Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:Use GPS (Score 1) 178

NTP servers require an accurate clock source, they don't generate time out of thin air. This is either directly from an atomic clock (which requires corrections for all these problems you've mentioned), or from GPS time (There are lots of GPS based NTP servers out there, your imaginary problems were solved ages ago.).

Comment Re:Use GPS (Score 1) 178

Someone had better tell the makers of GPS-based time servers that their products are useless!

For your next trick, name a clock source that doesn't have this problem. GPS even provides the proper correction, I'm pretty sure the vibrations of cesium atoms don't.

Comment Of course (Score 4, Interesting) 684

The the safety of the LHC does not depend on a single calculation.

For a black hole created by the LHC to destroy the earth essentially requires everything we know about physics to be wrong.

First, can it even create them? The Standard Model says no - not even close. A certain category of String Theory models say maybe. This same models predict that these black holes are everywhere, being created all the time, even here on Earth.

Will black holes evaporate? They certainly should. If we are wrong about this than in all probability we are wrong about being able to create them at all as well - and we should hope we are, since they'd have swallowed up the universe by now if they were dangerous.

Is a stable micro black hole even dangerous? The numbers I've seen show a black hole like this would behave more or less like a neutrino. Maybe hitting an atom every few thousand or million years. The sun will enter its red giant stage, destroy Earth, and shrink down to a white dwarf before the black hole gains any significant mass. I don't think we will care much at that point.

Slashdot Top Deals

Thus spake the master programmer: "After three days without programming, life becomes meaningless." -- Geoffrey James, "The Tao of Programming"

Working...