A couple of very quick scientific jokes....Schrodinger's Cat
DEAD AND ALIVE!!!
A neutrino walks into a bar...and keeps right on going....
Actually I have just thought of another one, as follows:
Two astronomers, Fred and Harry....
Fred: I jumped a red light on the way to work today, and got pulled over!
Harry: OMG Fred! Are you gonna have to go to court?
Fred: Well no. I explained to the policeman that I didn't actually see the light as red. Due to the doppler effect, it was shifted towards the blue end of the spectrum.
Harry: You mean he let you off?
Fred: No - he gave me a speeding ticket!