gworley3 - Slashdot User

Comment Qbit communication not secure in practice (Score 1) 126

by gworley3 on Saturday June 16, 2012 @12:58AM (#40342325) Attached to: Move Over, Quantum Cryptography: Classical Physics Can Be Unbreakable Too

"In practice, though, while the communication of the quantum-encrypted messages is secure, the machines on either end of the link can never be guaranteed to be flawless." Actually, in practice, this isn't true. The communication of qbits currently requires the sending of multiple particles that have been operated on in the same way to overcome the problem of particles interacting with the universe and getting into a "dirty" state. Because of this, certain kinds of man-in-the-middle attacks are possible against quantum cryptographic methods, at least as currently practiced. The quote from the summary makes much more sense if we s/practice/theory/.

Submission + - Crowdsourced evolution of 3D printable objects (endlessforms.com)

Submitted by

JimmyQS

on Thursday September 22, 2011 @12:53PM

JimmyQS writes: "The Cornell Creative Machines Lab, which brought us chatbots debating God and unicorns, has developed Endlessforms.com, a site using evolutionary algorithms and crowdsourcing to design objects that can be 3D printed in materials such as silver, steel or silicone. MIT's Technology Review says "The rules EndlessForms uses to generate objects and their variants resemble those of developmental biology—the study of how DNA instructions unfold to create an entire living organism. The technology is 'very impressive,' says Neri Oxman, director of the MIT Media Lab's Mediated Matter research group. She believes the user-friendliness of the evolutionary approach could help drive the broader adoption of 3-D printing technologies, similar to how easy-to-use image editors fueled the growth of digital photography and graphic manipulation. Oxman [notes] that this could ultimately have an impact on design similar to the impact that blogs and social media have had on journalism, opening the field to the general public." The New Scientist has a quick video tour and describes how the same technology can evolve complex, artificially intelligent brains and bodies for robots that can eventually be 3D printed."

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