Review on Fresnel Acrylic Magnifier Heating Education by Maurice Branch
A handy tool for those preparing for the end of the world or just for those who love camping.
Simple, light and flexible. By focusing on a piece of crushed pine, even in mid-March, when the sun wasn't even at its highest that day, I was able to create a flame in a matter of seconds. Potentially very useful in an emergency. Of course, it also increases the odds well!
- Ideal for visual aid, solar heating experiments, outdoor cooking, DIY solar concentrator, scientific research, magnification.
- I don't remember, but there was something
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