reflectors
telescope, micrscope, barometer and thermometer
There are four: Hubble Space Telescope, Compton Gamma Ray Observatory, Chandra X-ray Observatory, and the Spitzer Space Telescope.
because he wanted to show the four largest moon
Galileo Galilei, when he trained his new telescope on the sky.
The most famous terrestrial telescope is the 200-inch reflecting Hale Telescope at Mount Palomar near San Diego. This was for years the largest telescope in the world. The Keck Observatory high on the Hawaiian peak Mauna Kea is more modern. But my own personal favorite is the Lick Observatory on Mount Hamilton. If you live in the Silicon Valley, you can see the dome gleaming in the sun from almost anywhere in San Jose or Sunnyvale. The Lick Observatory is up a twisty windy little road, and the telescope isn't large by modern standards - but it is beautiful and historic. See the links for some other choices.
i think four famous Romans are king john king edward |.
the cridit goes to Galileo who discoverded it with his won telescope which he invented.
Yes, all four of Jupiter's large moons can be seen with binoculars.
Galileo Galilei is most famous for his development and improvement of the telescope, his support of the heliocentric theory proposed by Copernicus, his discoveries in astronomy (such as the moons of Jupiter and sunspots), and his struggle with the Catholic Church over his beliefs.
Microscope, Telescope, Thermometer, & Barometer.
light emitted by the satellites