Active Neurons 2

Good job! Completed all tasks!

To invent the principle of the alphabet

To invent the Windmill

To invent the Gunpowder

To invent a Printed Books

To invent the Compass

To invent the Steam Engine

To invent an Electric Light

To invent a Wireless Communication

To invent a Penicillin

To invent the First Transistor

To invent the Global Internet

To invent a wheel