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Science

Submission + - Researchers Build Evolving Brain Computer? (hplusmagazine.com) 2

Submitted by destinyland
destinyland writes: "We have mimicked how neurons behave in the brain," announces an international research team from Japan and Michigan Tech. They've built an "evolutionary circuit" in a molecular computer that evolves to solve complex problems, and the molecular computer also exhibits brain-like massive parallel processing. "The neat part is, approximately 300 molecules talk with each other at a time during information processing," says physicist Ranjit Pati of Michigan Tech. When viewed with a scanning tunneling microscope, the evolving patterns bear an uncanny resemblance to the human brain as seen by a Functional MRI. Using the electrically-charged tip of a tunneling microscope, they've individually set molecules to a desired state, essentially writing data to the system. And while conventional computers are typically built using two-state (0, 1) transistors, the molecular layer is built using a hexagonal molecule, and can switch among four conducting states — 0, 1, 2 and 3, suggesting it may ultimately have more AI potential than quantum computing.
Google

Submission + - Visually Demonstrating Chrome's Rendering Speeds (youtube.com)

Submitted by eldavojohn
eldavojohn writes: Recent betas of Google's Chrome browser are getting seriously fast. Couple that with better average hardware and it's getting down to speeds that are difficult for users to appreciate. Which is why Google felt that some Rube Goldberg-ish demonstrations are in order for your viewing pleasure. Gone are the days of boring millisecond response time metrics.

Comment Re:Resistance (Score 1) 125

by will.perdikakis (#32103656) Attached to: MIT Unveils First Solar Cells Printed On Paper
Because in order to obey the conservation of energy laws, energy in >= energy out of that DC/DC converter.

Total (Vin * Iin) = Total ( Vout * Iout) If you increase the output voltage, the output current drops proportionally. Furthermore, to increase output voltage while keeping the output current similar, you need more input current.

Since photovoltaic are already low current, there is not much head room to increase output voltage.

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