it took him 12 years to make the telescope.
He never discovered it. He is one, of many people, that are credited with it's invention though. He applied for his patent in 1608.
It was invented in 1608
3 months and 3 weeks
in 1608
3 years
ew
How long did it take Galileo to make the first telescope?
8 days
You wouldn't be able to make it to Mars on a jet in the first place.
Maybe. I don't know... GOOGLE IT.
I just did! So long...
How long did it take Galileo to make the first telescope?
16 years
You take a piece of paper and roll it up, use tape to tape the telescope up.
forever
8 days
No. The light that enters the front of the telescope is light that left the sun 8 minutes earlier.If the telescope is 100 ft long, then it takes the light about 0.0000000001 second to travel from thefront end of the telescope to the back end, which is about how long it takes for you to go blind if youlook through the telescope directly at the sun.
Usually not long, mostly you just have to get their attention first. (:
It took the first computer 1 hour and 36 minutes to make computations.
4 years
about half a year
how long does it take to make a crayons
The Hubble telescope was launched on 24 April 1990.