How to make a Philosopher's Stone - Plasma form
If you want one that's simultaneously liquid and solid, you can't do much better than Liquid Marbles. They sell 'em in the floral section, or even in the dollar store...I got a bunch of clear ones and am currently soaking them in a mixture of purified water, red food coloring, and half a drop of blue for that slightly magenta hue. Because of the nature of Liquid Marbles, while they're submerged in a liquid they cannot be seen; but they can be pulled out of the liquid like magic in a viscous sphere. Because I'm using Clears, there's a bunch of spheroid pockets of lighter hue in the mix; however, because they absorb the water they're placed in, this seems to be diminishing. I kind of wonder how the pre-dyed ones would do...
24 hours in they're already color matched. Be careful to keep adjusting the mixture they're in, as 1: food coloring will settle if left to its own devices and 2: as they absorb the colored water they're also leeching out clear water.
And they're bouncy, which is also fun. And slippery, which can be tricky. Nontoxic if you wanna go crazy, but they are a choking hazard.
The standard advice for finding a cool looking test tube applies...I swear by rubber stoppers, you can get 'em in the Miscellaneous Drawer at Lowe's...craft corks look nice, but they degrade like nobody's business.
Last edited by Tyhm : 12-17-2009 at 10:18 PM.