How a telescope works. A refractor is like a larger version of a seafarer's spyglass. It has a long tube with a main lens at one end to collect and focus light, and an eyepiece to magnify the resulting image. In the traditional Newtonian reflector the light focused by the primary mirror is bounced back up the tube to a small secondary mirror which diverts it into the eyepiece. [Image: bro.lsu.edu] Mona Evans, "Choosing and Using a Telescope" http://www.bellaonline.com/articles/art46819.asp Primary Mirrors, Larger Version, Long Tube, Mona Evans, Focus Lights, Newtonian Reflector, Seafarer Spyglass, Maine Lens, Lights Focus
Palomar Observatory. The adaptive optics system uses a laser star as a calibration source and then deforms a small mirror to correct for distortions caused by the atmosphere. The corrections are made faster than the atmosphere can change -- thousands of times per second. Mona Evans, "Palomar Observatory" www.bellaonline.c...
Space for Little Astronomers! Astronomy&History for Kindergarten and 1st Grade
Great idea to use the telescope to show what we might see in space. Adding the writing would be great for older primary students!
Constellation Activity - Paper Tube Telescope Craft With Free Printable Star…
Transform a paper towel roll into a telescope and learn real constellations with these cute printables!