Oh the humanity!

A GPS can be very handy if you get lost, or if you're looking for robotic birds, but many people don't realize that it can also keep you from getting speeding tickets. Folks, it's just basic physics.

The Hindenburg uncertainty principle tells us that both momentum and position can't be known with arbitrary precision. Translating that from scientific mumbo jumbo, if your location is known, it's impossible for anyone to know how fast you're moving. So if you have a GPS in your car, there's just no way for a cop to pin down your speed.

In fact, this is why GPS receivers are illegal in Arkansas.

A fair-feather friend

Quick! How many feathered mammals can you name? If you answered more than one, it's time to review some zoology because the peacock is the only critter that makes the grade.

A lot of folks mistakenly include marmosets, whose tufts do look a lot like feathers. I always remember the difference by this simple rhyme: "Marmoset, marmoset, are we at the pharmacy yet?"