This scientist, who had a hearing problem, invented the electric lightbulb.
Thomas Edison
This scientist, who had a speech problem, discovered the laws of physics.
Isaac Newton
At what age did Stephen Hawking learn he had Lou Gehrig's desease?
He learned he had Lou Gehrig's disease at age 21.
What does Lou Gehrig's disease do to our body?
It damages the parts that control our muscles.
How did Stephen Hawking's body change?
His body became slouched and his head was tilted.
What did Stephen Hawking first use to help him walk?
He first used crutches to help him walk.
What did Stephen Hawking use when he could no longer walk at all?
He used a wheelchair.
What did Stephen Hawking use when he could no longer speak clearlyl
He used a special computer.
