Albert Einstein, Isaac Newton, Werner Heisenberg, Georg Ohm, Galileo Galilei, Max Planck, and Louis de Broglie were carpooling to work...
...when they got pulled over for speeding. However, when the police officer tried to ask them how fast they were going, he couldn't get a straight answer, and the group was so rowdy that they had to be brought in for questioning.
So all 7 of them are taken to the police station, and individually questioned. First, they were asked simply "Do you know how fast you were going?"
Heisenberg, the driver, said "It was definitely somewhere between 0 and 180 miles per hour. I can tell you exactly where we were though."
Newton says "We were going 92 miles per hour when we were pulled over - and here's the differential equation that proves it."
Einstein says "I'm relatively sure we were stationary - the earth beneath us was moving at 92 miles per hour."
Galileo says "We were going 67,000 miles per hour around the sun."
Broglie says "Um... Uh. Wavelength?"
Planck says "I believe we were moving at around ten duodecillion quanta per hour, give or take."
And finally Ohm, no matter how many times he was asked, screamed "I won't go! I won't! You'll never take me alive!"
Super Happy Birthday Ark 
I hope you enjoyed the day surrounded by family and friends.
