petek, 24. oktober 2014

                                      TELESCOPE

 


The earliest recorded working telescopes were the refracting telescopes that appeared  in the Netherlands in 1608. Their development is credited to three individuals: Hans Lippershey and Zacharias Janssen. The name "telescope" covers a wide range of instruments.Telescopes may be classified by the wavelengths of light they detect:
-  X-ray
-   optical telscope
-  infrared

I really like to use it,but I don't have it at home. But when I use it, I use it at night, you can see stars, planets. It's very beatiful.



                                                                                                                                   Eva Verdenik, 9.a

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