NEWS FROM THE FUTURE – Biological Computers Encrypt and Decipher Images

NEWS FROM THE FUTURE – Biological Computers Encrypt and Decipher Images:

NEWS FROM THE FUTURE – Biological Computers Encrypt and Decipher Images via Beyond the Beyond…

Scientists at The Scripps Research Institute in California and the Technion–Israel Institute of Technology have developed a “biological computer” made entirely from biomolecules that is capable of deciphering images encrypted on DNA chips. Although DNA has been used for encryption in the past, this is the first experimental demonstration of a molecular cryptosystem of images based on DNA computing.

Instead of using traditional computer hardware, a group led by Professor Ehud Keinan of Scripps Research and the Technion created a computing system using bio-molecules. When suitable software was applied to the biological computer, it could decrypt, separately, fluorescent images of The Scripps Research Institute and Technion logos.

DNA computing, bio-hacking bio-molecules to do image recognition

How-To: Switchable-Polarity 250,000 Volt Power Supply

How-To: Switchable-Polarity 250,000 Volt Power Supply:

In today’s project on diyphysics.com, David Prutchi shows how to build a Cockcroft–Walton multiplier using a “ladder” of capacitors and diodes on perfboard, submerged in mineral oil, inside a sealed plastic container. The multiplier takes high voltage AC, e.g. from a TV flyback transformer, and both rectifies it to DC and steps it up considerably. David reports outputs of 250kV given 12V input at the flyback driver. A handy feature of his design is that it can provide high-voltage DC of either polarity with respect to ground.

And yes, to be clear about it: Making a mistake here could be very dangerous. You should understand and be comfortable with the proper safety procedures for handling high voltage electricity and charged capacitors before seriously considering a project like this. [Thanks, David!]

Electronic telepathy breakthrough hailed - Science - News - The Independent

Electronic telepathy breakthrough hailed - Science - News - The Independent:

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Vi Hart and More Fun with Fibonacci, Plants, and “Spiraly Things”

Vi Hart and More Fun with Fibonacci, Plants, and “Spiraly Things”