it took him 12 years to make the telescope.
Galileo created his first telescope in around two months in 1609. It was a refracting telescope with a convex objective lens and a concave eyepiece. This instrument revolutionized astronomy and allowed Galileo to make groundbreaking astronomical observations.
Maybe. I don't know... GOOGLE IT.
309 years
"Magnitude" is not a term that's usually used to describe a telescope, although it's commonly used to describe the objects the telescope observes. Down below this answer, we've added three links that will take you to sites that are packed full of information on the Hubble Space Telescope. If the test is tomorrow, then you probably ought to get cracking.
96 to 97 minutes.
Galileo created his first telescope in around two months in 1609. It was a refracting telescope with a convex objective lens and a concave eyepiece. This instrument revolutionized astronomy and allowed Galileo to make groundbreaking astronomical observations.
forever
You take a piece of paper and roll it up, use tape to tape the telescope up.
Usually not long, mostly you just have to get their attention first. (:
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.
4 years
about half a year
It took the first computer 1 hour and 36 minutes to make computations.
how long does it take to make a crayons
They have been around since 1903.
It took about 48 hours, from start to finish product
2 1/2 years