He invented the telescope.
Galileo first used a telescope to observe the sky.
Galileo
Galileo
Galileo
Galileo
Galileo built many of his own instruments including the telescopes for which he is famous (but he did not invent the telescope), he was the first to describe in print what he saw in the sky.
He used a telescope to observe the sky. This allowed Galileo Galilei to see things that an unaided, human eye could not see.
Galileo did invent a toilet but most people think that he didn't.
He didn't invent science.
no
No.
Galileo didn't invent the thermometer Gabriel Fahrenheit did.