Telescope Shipping

Two Axis Panning Timelapse Head for DSLR (ready to buy)

How to Use a Telescope - Galileo's First Telescope and Its History

Galileo Galilee is known as the “father of telescopes” and rightly so. He is the inventor of the telescope and every telescope made after his invention follows the same principle that he used. Galileo’s telescope was a primitive prototype of the telescopes that are used widely today. However, the principles he used are the very same ones still being used to this day. Galileo’s telescope used two lenses – one concave and one convex – inside a tube-light shaped device. Convex lenses are those lenses whose edges curve inwards and concave lenses are lenses that have outward curves at the edge. The eyepiece in the telescope was constructed with the concave lens. Spy glasses, invented around the same time and used by militants to observe enemy activity in camps, were a major inspiration to Galileo in making his own telescope.

When two lenses are combined together, they are able to collect more light than individual lenses. This is the main principle behind Galileo’s telescope. Most of the telescopes in use today, use the same principle. The human eye also works on a similar principle, but cannot collect too much light. Telescopes are able to gather more light because of the double lenses used in its construction. These lenses gather light and build an image by focusing the light at a point. Refraction is the mechanism in use to form such images. As a result, telescopes are also called refracting telescopes or refractors. The phenomenon by which the collected light bends and forms images is known as refraction.

Images were magnified by a factor of 30 in Galileo's invention. However, the shape of the lenses he used was such that his image became blurred and distorted. But no one had ever invented something so exciting with which to observe the night skies before Galileo's telescope. Galileo used his telescope to view the moon and observe it closely. He was also the one to figure out that the magnification factor of a telescope was provided by the ratio of the power of the concave lens to the power of the convex lens. So he premised that the simplest way to increase this magnification factor was to use a high power concave lens with a weaker convex lens.

In Galileo's time, there were only low strength lenses available. Due to this restriction, Galileo decided to make his own lenses. He was soon able to achieve a magnification of 9x with lenses hat he had ground himself. His telescope was fitted with his own lenses. It was just another feather in his already well-decorated cap.

As time passed, Galileo improvised on his primitive telescope, making several modifications to it. He also demonstrated his invention at the Senate of Venice, and several senators climbed the highest towers of the time to observe the horizon with Galileo's invention. They viewed the distant ships from their perches and decided that the telescope was a very useful military device.

The telescope changed the face of Astronomy and became an indispensable part of the study. Several inventors used the same principle and made telescopes of their own. Gradually over the years, the study of astronomy benefited immensely from the telescope and its uses. The same principle was employed in the construction of much more powerful telescopes that made it possible to understand our plane and its surroundings more comprehensively, all thanks to Galileo's wonderful invention.

About the Author

Discover more about amateurs telescope making as well as insights into astronomy telescopes when you visit http://www.howdotelescopeswork.com, the online resources on how do telescopes work

how did inventions aid discoveries and explorations from the 13th to 18th centuries?

how did the inventions of compass, ships, telescope, astroluck, sextant ec aid explorations and discoveries from the 13th to 18thy centuries?

The compass, astrolabe and sextant, along with advances in shipbuilding, enabled the navigation of the World Oceans and thus domination of the worlds economic trade.




BINOCULARS Telescope Monoculars Free shipping
BINOCULARS Telescope Monoculars Free shipping

$49.99
29d 22h 43m remaining

Kowa Scope Gumiarmiert 11 33x50 Glasses Telescope Fast Free Shipping
Kowa Scope Gumiarmiert 11 33x50 Glasses Telescope Fast Free Shipping

$200.00
10d 10h 16m remaining

Compact Telescope Monoculur in Case Low cost shipping options
Compact Telescope Monoculur in Case Low cost shipping options

$2.95
15h 9m remaining

SVBONY 12x50 Monocular Telescope BAK4 Roof Prism Broadband Multi coated US SHIP
SVBONY 12x50 Monocular Telescope BAK4 Roof Prism Broadband Multi coated US SHIP

$53.09
13d 4h 48m remaining

US Shipping 30 260X HD Variable Zoom Binoculars Night Vision Optics Telescope
US Shipping 30 260X HD Variable Zoom Binoculars Night Vision Optics Telescope

$89.29
14d 22h 23m remaining

US SHIPFS608 2 LCD HD1080P Video DVR Record 12X32 Digital Telescope Binoculars
US SHIPFS608 2 LCD HD1080P Video DVR Record 12X32 Digital Telescope Binoculars

$76.99
3d 10h 24m remaining

SVBONY Toy 8X21mm Binocular 8X Telescope for Children Christmas Gift US SHIP
SVBONY Toy 8X21mm Binocular 8X Telescope for Children Christmas Gift US SHIP

$18.23
28d 2h 23m remaining

Zoom Day Night Vision 30x60 Binoculars Outdoor Travel Folding Telescope US SHIP
Zoom Day Night Vision 30x60 Binoculars Outdoor Travel Folding Telescope US SHIP

$8.16
18d 10h remaining

16X52 Dual Focus Monocular Telescope 16x Zoom Monoculars HD Scope New 1 Day Ship
16X52 Dual Focus Monocular Telescope 16x Zoom Monoculars HD Scope New 1 Day Ship

$13.99
22d 3h 11m remaining

SVBONY 8X21mm Binocular Multi Coated Telescope Carry Bag for Children US SHIP
SVBONY 8X21mm Binocular Multi Coated Telescope Carry Bag for Children US SHIP

$19.99
7d 4h 16m remaining

High Power Monocular Telescope Scope BLUE FREE SHIPPING Binocular
High Power Monocular Telescope Scope BLUE FREE SHIPPING Binocular

$131.09
21d 20h 9m remaining

Gskyer Binoculars for Kids Folding Telescope Travel Sightseeing FREE SHIPPING
Gskyer Binoculars for Kids Folding Telescope Travel Sightseeing FREE SHIPPING

$40.00
13d 18h 4m remaining



« Previous12345


Tagged with:

Filed under: Astronomy Binoculars