If you believe in the many universe interpretation, then by definition animals where hurt during the experiment, just not in the universe you currently occupy.
Perhaps I should have said science at home, or lab at home. But this is what I was asking about, I like doing stuff like this, and was just taking a temperature of were the community is.
Those Physics @ Home are great at explaining certain things at home, but I am interested in what people are actually doing, not just fun things like I made, but what about real physics at home?
I'm sure everyone here loves to do physics at home. This weekend I made a cheap http://www.cymek.com/?q=node/109", but I want to know what other physics related activities people are doing at home.
What is the context of the question? You can assume that the MBR has an effective surface area of the entire universe, but that the surface area of the emitting body would be the size of the universe when the radiation was first released.
Opposites attract, likes repell.
That is each magnetic field has a North[N] and South[S] pole, two magnets connect NS or SN. If you try to make a like connection, SS or NN they repel each other, that is if they are laying on a table and you push one magnet towards the other, the other will...
That may not be the best way to state that.
You are correct, on this. What I meant when I said in a vacuum is traveling in a straight line without external forces acting on it.
CraigD, AMInstP
www.cymek.com
Time is not constant. Only the speed of light is constant in a vaccumm. The acceleration in this case is the acceleration in our frame of reference. If we changed frames we would change the rate of acceleration that we observe.
Another point here is that the time isn't changing, but the...
Not hogwash, just mis-stated. You can observe quasars moving away from us at 2c. The problem here is that they are not actually moving through space at 2c, but the space between us and it is expanding at a rate equal to 2c. Because space has no mass, it can expand at any rate; i.e. 2c.
To...
Any estimate of the diameter of the universe is going to be pretty rough. What is more concrete is the diameter of the visable universe. This then opens up a philisophical debate on the subject of what is the universe. Most models of the size of the universe are derived from the starting...