Handy exam trick: when you know the answer but not the correct derivation, derive blindly forward from the givens and backward from the answer, and join the chains once the equations start looking similar. Sometimes the graders don't notice the seam.

If at least one person has a nightmare about being swarmed by hundreds of mouse-sized dromaeosaurids, my work will have been done.

This is also one of only five identified situations in which a vuvuzela is actually appropriate.

News networks giving a greater voice to viewers because the social web is so popular are like a chef on the Titanic who, seeing the looming iceberg and fleeing customers, figures ice is the future and starts making snow cones.