What is the most important device that you think needs to be invented?

Question

serious answers only plz , what area of your life , and everyones lives in particular do you think a new invent is needed . explain with details please

Answer 1

A seat belt that is more comfortable to wear and is user friendly.

The present day design cuts into your shoulder, hinders your movement when you try to look behind, and is a general nuisance.

Answer 2

An aid for arthritis sufferers and the elderly to open a simple plastic bottle of milk.

Answer 3

We need a machine or machines that take any and all materials we currently call waste, (especially hazardous waste) and breaks it down into matter that is reusable, or at least neutral, in its effect on our environment.

Answer 4

a car that runs on basic water from your garden hose.... and then it needs to be mass produced so that the dependency for foreign oil will cese and the air will be cleaner