The Light Cancelling Flashlight Experiment Water Cooled 72,000 Lumen 1 day ago   11:36

The Action Lab
In this video I talk about the idea of a light cancelling flashlight. I show you how you can make a setup in which you actually gets a light that is less bright when you shine more light on it using a Michelson Interferometer setup. Learn about the idea of light cancellation using the same ideas as noise cancellation.

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DISCLAIMER: Any experiment you try is at your own risk

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Water Cooled 72,000 Lumen The Light Cancelling Flashlight Experiment 1 day ago   04:45

People wanting a big light for their car: light bars exist now, cheaply and reliably http://amzn.to/2noXgNe
Here's that neat 1150 lumen light: http://amzn.to/2xwQEUO
FAQ's!!!
Q: why are you only turning it on for short bursts?
A: The reason is just that I only had one night with the camera guy to get all the shots and I was paranoid of losing battery. The other reason is that it's so bright that it's annoying and I loose the ability to see at night
Q:Will it eventually overheat?
A: No, it can run off a power supply continuously with a stable coolant temperature.
Q: How long does the battery last?
A: The small battery back I'm using is made out of batteries I already had, and they will last 6 minutes. A bigger battery is easy


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Here's an Imgur album of pictures taken that night! http://imgur.com/a/dz4y8
Yes I would like to have used constant current drivers, but those would take up space and money that I don't have.

I made this back in February, but only got around to filming it a couple weeks ago. Thanks so much to Caleb Riston for the DSLR equipments and skills!


Thanks to ThruNite Flashlights for offering to send me a flashlight to use in this video! Any positive opinion of the flashlight is Caleb's or my honest opinion - but there is no way around the bias of free things.

If you would like to check out their flashlights, you can use any of these links:

Official Store: http://www.thrunite.com

Amazon US: http://www.amazon.com/thrunite
Amazon CA: http://dwz.cn/1eGTT0
Amazon UK: http://amazon.co.uk/shops/A2DUUB2J3TY3X1
Amazon DE: http://amazon.de/shops/A2DUUB2J3TY3X1
Amazon FR: http://amazon.fr/shops/A2DUUB2J3TY3X1
Amazon IT: http://amazon.it/shops/A2DUUB2J3TY3X1

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