Make a Telescope

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In its essence, a telescope is an instrument that makes a far away object look closer. To do this, a telescope has a device that collects light from a distant object (objective lens or primary mirror) and brings that light (image) to a focus where a second device (eyepiece lens) magnifies the image and brings it to your eye. To make a simple telescope at home, you will need the following:

• two magnifying glasses - perhaps 1 - 1.5 inches (2.5-3 cm) diameter (it works best if one is larger than the other)
• a cardboard tube - paper towel roll or gift-wrapping paper roll (it helps if it is long)
• duct tape
• scissors
• a ruler, yard stick, or tape measure
• sheet of printed paper - newspaper or magazine will do

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