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Laser interferometer amateur scientist

To that end, I start with a review of optical interference, after which I provide a systematic approach on how the ATM can build an optical interferometer without any input other than this book and homemade, surplus or common off-the-shelf components. For the Williams interferometer the experienced telescope maker is likely to have accumulated a well-stocked??? See Appendix D or a list of suppliers. This book describes how to make mounting hardware for little more than the time and effort it takes to build them but if purchased new or even used these would be a significant additional expense.
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Scientific American's

Laser interferometer amateur scientist
Laser interferometer amateur scientist
Laser interferometer amateur scientist
Laser interferometer amateur scientist
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Amateur Scientist - Scientific American

Of course, I had two mirrors, a lens to magnify the interference fringes, but how did I really save money? I used a 10 cent CD jewel case for a beam splitter! Even with this hacking, I got some crisp fringes, and I hope to use this to test the stability of my setup when I try making holograms again. Even though I'm only working with Class IIIa lasers, you should take care not to look into the beam or reflections. Laser goggles of a low optical density might be advisable. For those who may not be familiar with an interferometer, it's just a device that interferes waves. The beam is split in 2 and the resulting beams are projected onto a surface via the mirrors to observe interference.
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Home-Built Laser Types, Information, and Links

An amateur makes a wind tunnel to study the vortexes that form around a cylinder. Outdoor temperature, humidity, wind speed and wind direction are displayed on a panel. Advice is offered on equipment and safety procedures for a forthcoming solar eclipse.
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The Amateur Scientist column in Scientific American , when it was alive and well under the leadership of C. Stong, contained a number of vacuum related projects. Two of particular interest are the ones on an electron accelerator and homemade cold cathode x-ray tubes.
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