The Problem Is That Your Eardrum Has Air on Both Sides
Behind the eardrum is not solid tissue. It is a small sealed cavity full of air, and that is…
Do It Now
Put one hand flat on a table, palm down, fingers spread.
Now fold the middle finger under, so that it tucks beneath the palm and the middle…
Almost every bone in the body is connected to other bones. It meets them at joints, it is held by ligaments running bone to bone, and its position is fixed…