Recent content by Rainbrew

I'm currently struggling slightly with finding some information regarding a vortex. If I have a fluid in a cylindrical container and the fluid is then rotated at a constant speed, the vortex will displace the water and raise it relative to the initial level of the fluid. Is there any formula...

What about the colours? I understand that computer light is naturally heavily saturated with blue, however the polarising filter gets rid of most of that light, so where does the blue and yellow come from?

So while not doing what I should be I was cooling myself off with this tiny fan with a hand-crank. For some odd reason I decided to point it at my monitor and make it go in reverse and noticed that at a certain speed the blades of the fan appeared to be blue and yellow and rotating in the...