# Recent content by whydoyouwanttoknow

1. ### Light through a medium

Yeah. So are they though counted as new photons or does physics count them as the photons that came from the sun?
2. ### Light through a medium

Well is it counted as the light that came from the other side of the window or is it counted as light from the atoms in the glass?
3. ### Light through a medium

Ok, I don't want no equations and stuff please. :smile: When light travels through a medium the photons are absorbed by atoms in the medium and then a photon is given off by the atom of similiar energy, etc, this is correct? If this is so does that mean when I look out the window that I'm...
4. ### Speed of light

I told him to get a particle with mass to the speed of light you'd need infinite energy and that would cost you. :rofl: I don't know how to calculate anything with this stuff. I just read this stuff for fun. :eek:
5. ### Speed of light

I said the power bill would cost you a fortune. That'd be correct right propelling a particle with mass to the speed of light.
6. ### Speed of light

One of my friends told me that photons would have to have mass or they couldn't exist. I told him that if they did have mass a photon would knock you on your arse and turning on a light would cost you a fortune when your power bill arrived.
7. ### Schrodinger's Cat solutions

The phone rang. It's the cat. It said for you guys to get in the box and see what you think now.
8. ### Time travel?

Kip Thorne and Hawkings have a bet on travelling back in time. What's that conjecture......... um........ the Time Protection Conjecture or something. Basically any time machine would destroy itself the instant you tried to use it to travel back in time. Something like that.
9. ### Is the Universe Closed, Flat or Open?

All the evidence seems to point at the universe been flat but I believe most scientists believe that it really is closed and they're searching for evidence.
10. ### Is it ture that max speed

Yeah, photons have no mass.
11. ### Waves of any sort do not transfer mass

Then there's the ocean currents.
12. ### Is it ture that max speed

All particles with a rest mass greater than 0 travel at below the speed of light. Particles with 0 rest mass only travel at light speed. Particles with less than 0 rest mass should, if they exist, travel at only greater than light speed.
13. ### Does the fabric of space itself cause friction?

I remember reading a while ago that the fabric of space has a texture and thus would cause friction. Even in a perfect vacum a spacecraft would slow down over time due to this. Is this an accepted theory?
14. ### Stargazing What was the first object you saw through a telescope?

I find the moon to be in the way now.
15. ### Dirty Bomb

Dirty bomb. All you need is something radioactive (like enough to harm people) and a conventional explosive afaik.