The Timeline of the Telescope

It is well quite easy to make a timeline with regards to the invention of the telescope as well as how it has evolved over the years. Much has been written about the telescope and good records have been kept with regards to new technologies and inventions. Basically, the telescope timeline looks something like this:

1609 - Galileo first invented the telescope. Though it was crude, it still did the trick and allowed him to look into space for the very first time other than with the naked eye. Galileo's telescope was a reflecting one causing light to bounce off a mirror when looked at straight through a lens.

Telescope

Mid-1600's - Johannes Keplar came up with the idea of a refracting telescope that would widen the field of view as well as heighten the potential of the image. He did this by changing the shape and the placement of the lenses, but doing this caused puny circles of color that would surround engaging objects - chromatic aberration.

Late 1600's - As the century began to draw to a close, telescope makers were realizing that with a bigger lens, you could see much more. With a bigger lens, the telescope had to be bigger to adapt it. Eventually, telescopes were being built that we as long as a hundred feet!

It was at this point in the telescope timeline that Sir Isaac Newton began to change telescope lenses so that there would be no chromatic aberration. He also found a way to add mirrors to heighten images without having to make the telescope longer. This appealed to people as Newton's telescope was small but had the same power as the larger ones.

Mid-1800's - The first photographic telescope is introduced. John William Draper found a way to focus the Moon's image on a light-sensitive photographic plate. He used a clockwork device to keep the light in place even as the Earth rotated and the moon moved straight through the sky. After an exposure of 20 minutes, he had taken the first ever picture of the moon! After the introduction of the photographic telescope came about, we were able to see the skies up close and personal. And what a great accomplishment!

The early timeline of telescopes shows that many advances were made even before we developed into what we think of as contemporary times. Since the 1800's, so many advancements were made in the field of producing telescopes that documenting each and every one would be able to fill up pages and pages of text.

Suffice it to say that now we are graced with telescopes that can see even the minutest parts of Saturn's rings and even realize that Pluto is just a puny too small to be a real planet. The timeline of telescopes will continue. All we have to do now is sit back, watch, and document the advancements.

The Timeline of the Telescope

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