The word "parachute" comes from "para", meaning "against" or "counter" in Ancient Greek, and "chute", the French word for "fall". Some modern parachutes are classified as semi-rigid wings, which are maneuverable and can make a controlled descent to break on impact with the ground.

DrogueParachute

The word "parachute" comes from "para", meaning "against" or "counter" in Ancient Greek, and "chute",…

A rattlesnake's rattle, with twenty-four joints.

Rattlensnake rattle

A rattlesnake's rattle, with twenty-four joints.