Yeah. From what I understand, you can change the thickness of the oxidizing layer by regulating the voltage. You submerge the titania in an electrolytic solution like TSP (Trisodium Phosphate) and achieve the different colors as the oxidized layer thickens.
"There remain four irreducible objections to religious faith: that it wholly misrepresents the origins of man and the cosmos, that because of this original error it manages to combine the maximum servility with the maximum of solipsism, that it is both the result and the cause of dangerous sexual repression, and that it is ultimately grounded on wish-thinking." ~Christopher Hitchens, god is not Great
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PM me your email address to join the Slack chat! I'll give you a taco(or five) if you join! --->There's an app and everything!<---