Unit1 Women of achievement-writing 学案AYou have heard of inventor James Watt
He built a successful steam engine in 1969
But the first baby step to this invention took place in Egypt
The year was 120BC
A man attached two pipes to an ordinary kettle
He hung a globe over it
The steam made the globe go around
The device served no useful purpose
It was just something to see
No one at that time saw the potential
Over 1,800 years, in 1698, Englishman Thomas Saery put steam to work
He patented the first steam engine
The engine pumped water from a coal mine
Soon others tried their hand at the work
In 1721, Thomas Newcomen, an English blacksmith, improved Savery’s engine
The engine he built also ____________________
James Watt, a Scotsman, then took a giant step
He improved the steam