Re: Going near the speed of light

From: Androcles (androc1es_at_nospamblueyonder.co.uk)
Date: 08/28/04 

Date: Sat, 28 Aug 2004 20:11:06 GMT

"suzysewnshow" <suzysewnshow@yahoo.com.au> wrote in message
news:e0a23188.0408281106.2893bda6@posting.google.com...
| "Paul B. Andersen" <paul.b.andersen@hia.no> wrote in message
news:<cgpufr$8th$1@dolly.uninett.no>...
| > "suzysewnshow" <suzysewnshow@yahoo.com.au> skrev i melding
news:e0a23188.0408271439.68281aec@posting.google.com...
| > > The reason a particle beam can't exceed c is the same reason a hocky
| > > puck can't exceed a rifle's muzzle velocity no matter how much lead
| > > you direct toward the puck. The ultimate limit has nothing to do with
| > > "relativistic mass" and "infinite weight".
| >
| > You have to be pretty ignorant to repeat this old fallacy.
| > The reason why a bullet cannot accelerate a puck beyond
| > its own speed is that it cannot transfer kinetic energy to the puck
| > if it never hits it.
| >
| > But a particle in an accelerator gains the same amount of
| > kinetic energy every time it passes through a RF-cavity,
| > regardless of its speed. Even when the speed of the particle
| > is only few mm/s below c, it gains the same amount of kinetic energy.
| >
| > Did you really not know that, Dennis?
| >
| > Paul
| Nope I sure didn't. I gusess that synchroton loss was just a ploy to
| get more funding.
| http://lbl.confex.com/lbl/sri2003/techprogram/paper_4305.htm

I saw one o' them there ring things wiv 'lectrons in em, and it had a window
in the side wiv a blue light coming out. The man in charge measured the
speed of light in air and found that though the 'lectrons was going real
fast, it di'n't change the speed of light wot was comin' from the 'lectron.
So I went home and got out my old record player, switched to 78 rpm and put
a 33 rpm record on. It di'n't change the speed of sound either, just made a
squeaky voice.
Androcles

| Rdgs, Sue...

Relevant Pages

  • Re: Going near the speed of light
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