A little science humor

Because the guys don’t want you to get bored while they work on this page…

 
 
A neutron walks into a bar and says:  How much for a beer?
Bartender looks him over and says:  For you, no charge.
 
A neutrino walks into a bar.
Bartender asks:  What’ll it be?
Neutrino says:  Nothing.  Just passing through.
 
Tachyon says:  Nothing.  Just passing through.
Bartender asks:  What’ll it be?
A tachyon walks into a bar.