Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Comment: A better explanation (Score 2, Informative) 122

by Leon da Costa (#33817694) Attached to: Visible Light 'X-Ray' Sees Through Solid Objects

Amazing! A friend of mine has done his Ph.D. in exactly this field. He was shining a beam of light right THROUGH an opaque sheet of material (paper, I think) already a few years ago, and published about it in 2008. I think it's pretty much the same idea, from what I understand of it (but keep in mind, I chose the evil path of Business instead of Science, so I have no brain).

Anyway; on his page there's a much better explanation, with cute pictures and all that, of the same idea.

Math

+ - $25,000 question: Is this Turing machine universal

Submitted by Anonymous Coward
An anonymous reader writes "Stephen Wolfram, creator of Mathematica and author of A New Kind of Science, is offering a 25k prize to anyone who can prove or disprove his conjecture that a particular 2-state, 3-color Turing machine is universal. If true, it would be the simplest universal TM, and possibly simplest universal computational system — even simpler than rule 110. The announcement comes on the 5-year anniversary of the publication of NKS, where among other things Wolfram introduced the current reigning TM champion."

Our business is run on trust. We trust you will pay in advance.

Working...