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- http://space.about.com/cs/basics/a/spacefaq12.htm<br /> | - http://space.about.com/cs/basics/a/spacefaq12.htm<br /> | ||
- http://en.wikipedia.org/wiki/Hans_Lippershey<br /> | - http://en.wikipedia.org/wiki/Hans_Lippershey<br /> | ||
• A brief introduction to the mechanism of two lenses – I often get smaller groups playing with pairs of lenses and/or get them to look down the barrel of a large reflecting telescope such as a Meade lx200 | • A brief introduction to the mechanism of two lenses – I often get smaller groups playing with pairs of lenses and/or get them to look down the barrel of a large reflecting telescope such as a Meade lx200<br /> | ||
• Warn students to be careful – video from Australia showing damage from a science experiment gone wrong<br /> | • Warn students to be careful – video from Australia showing damage from a science experiment gone wrong<br /> | ||
- http://blogs.discovermagazine.com/badastronomy/2010/04/29/dramatic-video-of-nasa-balloon-accident-that-destroys-payload<br /> | - http://blogs.discovermagazine.com/badastronomy/2010/04/29/dramatic-video-of-nasa-balloon-accident-that-destroys-payload<br /> | ||