Lens flares are common with a high intensity source of light such as the sun or a spark.
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Photographic lens flares
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Category Archives: Interesting Stuff
My High Voltage Shed
Paraphrasing Monty Python -“None Shall Pass”. A Tesla coil in my high voltage shed. Standing room only. I need a bigger shed as I am running out of safe standing room!
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Equipment
Some of the commercial equipment I use is here. Usually it is vastly cheaper than my time and money even if I can make it up myself.
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Fresnel lens
Now this is HOT. A high quality Fresnel lens melts brick.
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Lemon Lights
Electricity + Lemons = Light. Stick two electrodes in the lemon with something around mains voltage at a couple of amps or more and it starts to sparkle.
“Continue reading” for unusual light formed by electricity and – you guessed it – lemons. Continue reading
Tektites
A gigantic meteorite impact 800,000 years ago threw this impact melted rock into space where it rained back to Earth as Tektites. These Tektites were collected by my uncle in Australia deserts some 30 years ago.
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Crookes Radiometer
This is a Crookes Radiometer. An old physics department staple. What does it do? On exposure to light or heat, the vanes turn on a low friction mount. Here a green laser (14 mW green and 9 mW infrared) starts it turning.
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Ultraviolet
Ultraviolet becomes visible when it makes things fluoresce. Tonic water under ultraviolet (UV) glows blue due to the Quinine content. Fluorescein glows green. “Continue reading” to see the effects of UV and the ways it is created. 10 photos and links. Continue reading
Strobe Light Effects
You see some strange creatures attracted to the shed lights at night.
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Bernoulli Balls
Bernoulli balls are held up on a stream of air. It is surprisingly stable, even in a crosswind, particularly with peacock feathers. Feathers and lycra are a great combination.
For different levitated balls and air flow visualisation with smoke: Continue reading