Let's Make Robots!

LHC starts up tomorrow

The large hadron collider gets it's beam on tomorrow....can't wait to see what happens....or doesn't.  :)




Less to do with robotics, but still, something that maybe a few might be interested in. 


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Apparently there are a number of webcam views of the LHC where you can view whats going on.


Back in the day when they were first testing the atom bomb here in the states (Sorry 'bout that by the way) some of the scientists were betting eachother as to if it would cause a chain reaction in the atmosphere and kill us all. After the bet was made they had to figure out which scientist (pro or con) would hold the money. --True Story
With respect to the current experiment, there don't appear to be any hypotheses. In fact, all the serious scientists are saying "we don't know what will happen, but it will al lbe perfectly safe". See, I can't see the justification for spending that amount of money.

I heard Steven Hawking bet $100 that the LHC would not succeed finding the Higgs boson (the LHCs main goal).


I'm goign to bet on his side. He does know a thing or two about this space stuff.... thingy.

as in micro black hole safe?!?!   :)


I can't see what can be "micro" about a black hole. Surely something is either a black hole or is not a black hole? YOu accelerate stuff to as fast as you can get it, the faster it goes the heavier it gets until it sucks.

Forgive me for the nerdy response, it's one of the few comments I actually know the answer to :)

It's true that a black hole itself is a singularity and thus has zero size, but when people talk about the size of a black hole they're actually talking about the diameter of its event horizon, meaning the distance from the black hole at which nothing can escape. Outside the event horizon, gravity is strong but you're not trapped -- within the event horizon, not even light can escape. The size of the event horizon depends on the mass of the black hole -- more mass equals more gravity, and thus a larger area from which there's no escape. The mass of a black hole is the same as the mass of the star (or subatomic particle) that turned into the black hole, and it'll have the same gravity. For example, if the Sun were to magically turn into a black hole, the Earth wouldn't get sucked into it -- all the planets would happily continue orbiting around it justl like they always have, because it still has the same amount of mass, it's just more tightly packed. What WOULD change is that the Sun (or rather its event horizon) would shrink from its current giant size to just a few kilometers across, and if you got that close to it, THEN you'd be trapped.

The black holes that could be created by the LHC are formed from one or two protons, and so that's all the mass they have, which means their event horizons will be so tiny (way smaller than the protons they started off as) that they can fly through the space between an atom's nucleus and it's electrons and not hit anything. So they won't be able to suck up any more matter before they evaporate due to Hawking radiation. It's like throwing a snowball across the Sahara desert with one or two snowmen placed here and there -- odds are pretty unlikely that you'll actually hit one of the snowmen, much less the thousands or millions you'd have to hit in order for the snowball to grow big enough to destroy your town.

So I'm not too worried. But it's sure fun to make believe that Gordon Freeman is about to come sprinting through my living room, crowbar whistling :)


The existence of Hawking radiation has never been observed, nor are there currently viable experimental tests that would allow it to be observed. Hence there is still some dispute over whether Hawking radiation actually exists.

So.. If this thing does not evaporate, if the guy with the funny voice is wrong.. eventually the little tiny black snowball will suck in another atom or whatever. And then another, and then another.. till there is an empty space around it..

I could argue that something that has so much suction power that even light cannot escape hardly has any vapours :) We will have to trust the guy with the funny voice, if he is wrong this just might be the last wor