Catch up on stories from the past week (and beyond) at the Slashdot story archive


Forgot your password?

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


Comment: YES!! (Score 1) 289

by s1lhouette (#27478927) Attached to: Could the Internet Be Taken Down In 30 Minutes?

Pay the right people, know what you are doing, and you could take the ENTIRE thing down. The entire Structure of the Internet is VERY hacked together. Take BGP for example. Very little security in it. And although they are working on sBPG, the current state of things is dreadful. Not to even mention DNS. So yes. We might not have Internet tomorrow. Although I am not an alarmist, I recognize that there are no good assurances in the Internet.

Comment: 30 kilograms (Score 2, Informative) 10

by s1lhouette (#27020283) Attached to: $81 Billion Gas Tab

Assuming 2 dollars per gallon, the man would have had to purchase 40700418454 gallons of fuel to generate such a bill. That is 1.54067844 × 1011 liters, 154 067 844 cubic meters or 0.154067844 cubic kilometers of fuel. Lets just say, having that much fuel in one place would be a good example of a bad idea.

Lets consider how much energy that would be. Assuming 34.8 MJ per liter there would be 5.36156097 × 10^18 Joules of energy. The Hiroshima bomb released about 6.3×10^13 joules of energy. That would make it about 85104.1424 Hiroshima bombs or about 30 kilograms of antimatter.

Comment: Re:Are they good for anything? (Score 1) 684

by s1lhouette (#26648173) Attached to: Miscalculation Invalidates LHC Safety Assurances


There are some severe problems with this idea. For one, small black holes are believed to release a MASSIVE amount of radiation as they disintegrate. To maintain the black hole, you would have to provide an equal amount of energy (or mass). Do you see the problem yet. You can gain a lot of energy from the black hole, but no more than you put into its creation. I would compare this idea to damning up a crater, manually filling it with water and gathering hydro-electric energy from the dam. Yes you could get some power, but no more then you spent filling the crater.

The only way that you could GET energy from the hole is if it were growing. I don't know how you feel about it, but i don't like the idea of an expanding black hole on the earth.

Also, gamma radiation is no more enjoyable than pesky fast neutrons.

Even bytes get lonely for a little bit.