Saving Gas (And My Sanity)

The US could save hundreds of barrels of oil a year if people would just turn off their headlights when there's enough ambient light.

Frankly, I'm baffled as to why they put them *on* in broad daylight. This not only wastes gas, in certain circumstances it can actually make the car less visible. As Jasper Maskelyne demonstrated in WWII, when he made a tank on a hill against a bright horizon disappear by putting lights on it, when something is silhouetted against a lit background, adding lights makes it blend in.

So, please, folks, think. (Actually, that's a reasonable plea for far more situations than this.)

Now, I realize this doesn't apply to motorcycles. They're small enough and the structure open enough not to make much of a silhouette. They also need every advantage they can get to make themselves more noticeable to other drivers. However, for cars and larger it is useful advice.