tachyon

I guees the title says it all... have a look... I came across this looking for an account of a trial with a Magic Rock and a Non-Magic Lump Of Glass, wherein it was shown that both were equally effective at inducing Magical Tingly Feelings in Believers. Can anyone give me the reference please...

Can anyone knowledgable please assist me...I am dealing with a brother-in-law who persists in trying to sell me "tachyon" products, like water, and other things that have been "tachyonized"....he claims it's good for health and I just know that it must be bogus. I am not knowldegable in physics...