Posts by DB_lanky

I was wondering along the same lines, in particular how much this relies on the standing waves that are formed due to the tank shape, maybe you could use multiple generators. Should probably hunt down their paper on it...

Re: They will never find them.

Then we'll detect the ones that happened yesterday then in that case

What do you mean by "size"? Black holes are a technically a singularity point, so size isn't really definable! Unless you mean the event horizon? which is about 60000km for this black hole, which is pretty small compared to both stars you mentioned. In terms of mass though this black hole weighs in ~1000 times heavier than Betelgeuse and ~500 times that of VY Canis Majoris.

Re: lasers depend on relativity

It doesn't really work like that, the Maxwell equations are invariant under a Lorentz transformation, which means in different moving frames of reference they are the same, or you can also say that the speed of light is constant in any frame. This doesn't necessarily mean that a working laser proves that special relativity is correct just because light is involved somewhere. You can show how a laser works without involving SR at all.

A better example of SR would be time dilation of relativistic particles http://en.wikipedia.org/wiki/Time_dilation_of_moving_particles