Can You Get a Cosmic Tan from Lights Across the Universe?

[Aaron_Shaw]

Hi. If there were a whole line of bright lights strung from one side of the universe to the other, and i set off from one side to the other at sufficient speed, would the doppler shifiting mean that i could get a sun tan from the lamps that otherwise emit standard light that might be used to light a home?

Thanks.

 

[starthaus]

Hi. If there were a whole line of bright lights strung from one side of the universe to the other, and i set off from one side to the other at sufficient speed, would the doppler shifiting mean that i could get a sun tan from the lamps that otherwise emit standard light that might be used to light a home?

Thanks.

You know that:

Frequency transformation:
$$\nu'=\nu \sqrt{\frac{1+v/c}{1-v/c}}$$
Energy transformation:

$$E'=E\sqrt{\frac{1+v/c}{1-v/c}}$$

 

[GRDixon]

Hi. If there were a whole line of bright lights strung from one side of the universe to the other, and i set off from one side to the other at sufficient speed, would the doppler shifiting mean that i could get a sun tan from the lamps that otherwise emit standard light that might be used to light a home?

Thanks.

I would say "Yes". Let us know when you open your first tanning salon. :-)

 

[DrGreg]

Yes, but don't go too fast or else you'll get a dose of X-ray or gamma radiation.