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I would like to do some experiments with optical cells. Basically, this is just a liquid container that you shine a laser beam through. I have found some on Ebay but most are pricey and kind of small. I was wondering if anyone here had experience building such things? Got any tutorials? My...

I have some free red lasers, tubes, power supplies, and other stuff that I will give to someone for free if you come haul it all off. No cherry picking. Take it all or take nothing! No shipping because some of it is large or weighs too much to ship. A truck or large car would work. Time is of...