Category: Science

Question: Why Do We Blink

We have to blink to cleanse and moisten the eye. Each time the eyelids close, salty secretions from the tear glands are swept over the surface of the eye,...

How To Cut Through Plastic

Depending on the type of plastic you need to cut through, use a fine-toothed saw, a hacksaw, or a non-melting table saw blade. You can also drill small ho...