This flash light (Russian made) uses a lever which you squeeze and it produces light. If you want more power you keep squeezing it. There are NO batteries.
Yes sure. Today in many area on earth use solar systems and other part use geothermal system for produce light.
Recently scientist produce light from some minerals.
Good luck.
There are some insect shine. Please fo;;ow this link:
https://www.quora.com/Why-does-some-bugs-shine-like-light-in-night-time
You can also generate electric power from your computer fan.
https://www.youtube.com/watch?v=xzLKHrH-YUw
Dear
Its sure we can, there are solar and thermal systems to replace by electric power.
Regards
In churches light can be produced from the ignition of some materials.
I do not know that you are referring to the process of generating light without electricity? But as others said light is from the sun naturally from the sun.
From Arab and Greek civilization, it is known to us that special type of oils can glow at night and lit the surrounding without burning.
There are effects like sonoluminescence (generation of light by sound), thermoluminescence (by temperature), chemoluminescence (directly by chemical reactions, e.g. in some insects), you also can couple radioactive substances with fluorescent materials, ...
The following Web page gives an almost exhaustive list of light sources:
https://en.wikipedia.org/wiki/List_of_light_sources
Dear Hashem Azizi,
It is possible to have light from solar battery.
Regards, Shafagat
Yes, candle (and the torch) - and if our civilization will not behave rationally, it will be here again - maybe?
Dear Colleagues,
Good Day,
Yes, you can. Please, watch this interesting Youtube that entitled "How To Make Light From Plastic Bottle, Lights For Home, FREE Energy, NEW source", press on the link and enjoy....
https://www.youtube.com/watch?v=C5XCRg_l4lE
Dear Colleagues,
Good Day,
"How to build a SOLAR BOTTLE BULB by liwanag in lighting
Light up dark areas in your home during daytime using this green and sustainable concept. Recycle used clear plastic soda bottles, add water+bleach, then install. After installation this solar light bulb can provide approximately 55 watts of light from the sun!
The comments below have noted that this is like a solar tube or deck prism.
The communities who benefit from this idea live in areas where the houses hardly have windows and live in darkness even during daytime. Their solution up until this innovation was to turn on the light bulb and use electricity.
Materials:
*PET soda bottle
*Galvanized Iron (GI) sheet
*Rubber sealant
*Bleach
*Filtered Water
Please, see the link for complete information .....
http://www.instructables.com/id/How-to-build-a-SOLAR-BOTTLE-BULB/
Dear Hashem Azizi
https://upload.wikimedia.org/wikipedia/commons/d/df/Diya.jpg
https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Whale-oil-lamp.jpg/800px-Whale-oil-lamp.jpg
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