Doomsday!!!

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Old Aug 9, 2008, 5:16pm   #11
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No problem, nini balck holes are all over the place anyway.
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Old Aug 9, 2008, 6:10pm   #12
 
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Originally Posted by equtrader View Post
No problem, nini balck (mini black?) holes are all over the place anyway.
Yep, there was one in Tesco's yesterday. It was on the baked beans shelf, I reached into get a tin and it just vanished, in front of my eyes. I felt my hand being drawn in but snatched it back quickly and all was well, although my fingernails had stretched to twice their previous length, so lucky escape. I complained to the Manager, he said it was not company policy to monitor mini black holes although if a full sized one entered the store they would review the situation, but he offered me some free nail clippers as compensation, so got a result .
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Old Aug 9, 2008, 6:18pm   #13
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Yep, there was one in Tesco's yesterday. It was on the baked beans shelf, I reached into get a tin and it just vanished, in front of my eyes. I felt my hand being drawn in but snatched it back quickly and all was well, although my fingernails had stretched to twice their previous length, so lucky escape. I complained to the Manager, he said it was not company policy to monitor mini black holes although if a full sized one entered the store they would review the situation, but he offered me some free nail clippers as compensation, so got a result .
Same thing happened to me last Thursday, followed by the Tuesday before. *pause* I hate it when time gets all misshapen.

Edit: On which note, no-one panic too much, it looks like the whole thing may be shut down by the future anyway: FQXi Community: Articles, Forums, Blogs, News - take THAT causality!
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Old Aug 9, 2008, 6:36pm   #14
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Originally Posted by equtrader View Post
No problem, nini balck holes are all over the place anyway.

What, like trading accounts? How are mini black holes everywhere, this isn't going down the porn route is it?

Did you know, that if you could scale down our galaxy to A4 size it would be thinner than the piece of paper?
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Old Aug 10, 2008, 2:21am   #15
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FYI

The effect of being sucked into a black hole is known as "spaghettification".

"Normal" physics breaks down when things are going really, really fast. The crux is that, say, a 30s timer will go for longer when it ocurs on a body in motion, relative to the observer, than when stationary.

A simple example:

When particles called Muons are created on the earths atmoshpere (about 6k's up from other particles arriving from the sun), they can be expected to "survive" about 2 millionths of a second. If they are moving at close to the speed of light (300 million meteres per second), they should get about 600 meteres before they disappear - yet they make it all the 6000m or so down to the earths surface - because, relative to the earths surface, time is passing slower.

If you measure time as if you were sat on the Muon, the same 2 millions of a second would last 31.6 millionths of a second down here on earth - enough time for the muons to go nearly 10km, rather than the 600m or so. It's known as Length contraction and time dilation, and happens at, and near, black holes.

Google the "twin paradox" for another example of this, pretty cool stuff.
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Old Aug 10, 2008, 4:51am   #16
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CERN Press Release – CERN announces start-up date for LHC

I thought that mini-black holes are so unstable. That they won't last long enough to do damage. But yeah, all they're trying to do is find where the "missing energy" has gone from colliding particles. Not sure if this is the hadron particle... or the gravitron. I almost got that edinburger doctor to my high school a few years ago after he retired from edinburgh uni. He was busy at the time =/
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Old Aug 10, 2008, 11:44pm   #17
 
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Originally Posted by Paul71 View Post
Any of you scientists know what the Hadron collider is? Can it really be controlled and safe? Was the end predicted by Nostrawotshisface?

Comments gents?

What's an 'event horizon'? How can normal physics suddenly turn into not normal physics? Would i feel any pain being sucked into a black hole? Say it only managed to take my foot off, would i bleed?


In a collider you bash subatomic particles together at very high speeds and look at the fragments. Kind of like reading tealeaves but for nerds

The event horizon has been explained. Normal physics breaks down there because gravity levels are so high that space and time are warped. Kind of like when you enter Selfridge's on the first day of sale and find yourself transported back to a scene out of Braveheart.

The idea with space-time is that basically space and time are related. Hence, gravity pulls time around it as well as space - and hence as you approach the event horizon of a black hole, the gravity is pulling time towards it, so each second for you at the event horizon lasts millions of years outside it. Hence people who enter black holes obviously become very boring.....

And yes, if the nucleus of an atome were the size of a pea, the electrons would be orbiting around it at a distance as if the pea were on the centre circle of Wembley Stadium and the electrons were flying around the car park! The electrons move at 600 miles/second, but the particles in the nucleus are moving at 19,000 miles per second - they are immensely tightly bound! And to come full circle, the Hadron Collider bashes those subatomic particles up.

Thing is, when you bash them up, you generate so much energy that new particles are born. Just like in Hiroshima and Nagasake where the nuclear explosion sites yielded some new elements that had never been seen before.

Am I waffling now?
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