Posts Tagged ‘cosmology’

CERN

September 23, 2011

‘Look, I don’t care whose fault it was. You launched the neutrino that broke the speed of light, so you’re gonna mend it too!’

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Spaghettification 2

February 11, 2010

Empirical science and first-hand observations may be the way forward, but I have to concede that very few people can muster the courage to jump into a black hole, whichever way up.

So for all the wimps* like me here is a safe method to see what the outside world would look like from a collision course with a black hole.

*For wimps but not for WIMPs. If you happen to be a WIMP, you wouldn’t see anything. How can you find out if you are one? If you feel overweight and people look through you, I’m afraid I have bad news for you.

Spaghettification

February 2, 2010

Why is it that in all the drawings illustrating spaghettification near a black hole’s event horizon, the unfortunate victim is falling foot first?

I mean, if anyone was crazy enough to jump into a black hole, he could just as well jump headlong.

Dark Matters

August 22, 2009

“Dad, can I go out and play football?”
“Have you done your homework yet?”
“Sure.”
“Then bring it to me, I want to check.”
“Erm, alright. Here it is.”
“Is that it?”
“Yes.”
“A couple of inkblots on a scrap of paper?”
“And a letter ‘a’. The rest is invisible, you know.”
“Invisible?”
“No, as a matter of fact it’s completely undetectable by any means of physical observation. But you can infer its existence indirectly by subtracting the mass of ink used up in the blots and the letter ‘a’ from the amount missing from the pen.”
“It’s still just a scrap of paper though, where’s the rest of your exercise book?”
“That’s invisible too.”
“Is it? Without a doubt there is an indirect way to prove its existence.”
“Of course not, don’t be childish. I merely postulated it.”

And that’s why it isn’t a good idea to teach kids cosmology.