Here's a previously unused 120mm 12v pc fan...two rare earth magnets mounted to the hub...and the whole thing mounted in an old plastic terrarium from when the kids were small.
The stir bar is a couple of small magnets, a couple bits of 1/4 inch dowel, all surrounded with some sugru.
As you can see, above, it works.
Here's a picture without the flask...you can see the magnets and the cool sugru bar.
This is one of the coolest things I have ever seen. Just the top picture, with the eerie greenish light looks awesome! So the fan moves the magnets in the terrarium, which moves the sugru bar, which stirs the contents of the flask?
ReplyDeleteThat's exactly how it works. The liquid yeast needs to be made into a starter....swirling the yeast in the nutrient / starter fluid accelerates the process...
DeleteSo the fan turns, turnning the magnets...the bar inside the flask also has magnets and stirs the fluid.