学物理的人才懂的笑话

http://www.hope.edu/academic/physics/currentstudentinfo/funny.htm
1,
Q: Why won’t Heisenberg’s operators live in the suburbs?
为什么海森堡算子不住在郊区
A: They don’t commute.
他们不对易（不坐车上班）
2,
Q: What do you get if you cross a pig with a rat?
老鼠从猪身上爬过去（叉乘），你得到什么？
A: Pig rat sine theta.
3,
So this neutron walks into a bar, orders a pint of lager and begins to open his wallet when the barman says, “For you, no charge!”.
中子走进酒吧，点了一品脱啤酒。拿出钱包买单，酒吧服务员对他说,”你免费（没有电荷）“
4,
At the physics exam: ‘Describe the universe in 200 words and give three examples.’
物理考试有这样一道题:”描述一下宇宙,限200字以内,并给出三个例子.”