Everybody knows that...

An image of the solar disc on a clear day, projected inside a cardboard box using a pair of binoculars.

Everybody does know that...

During the 17th Century, it was Galileo who developed the use of the telescope, at the expense of his eyesight, pointing his instrument skyward, even at the Sun. In 1660 he happened upon the four largest moons of Jupiter, he collected proof that Copernicus was correct in his theory about the Earth orbiting around the Sun.