Molecular gear mounted on an atomic scale axix : 1.2 nanometer Nanogear

Step-by-step rotation of a molecule-gear mounted on an atomic-scale axis. Gears are microfabricated down to diameters of a few micrometres. Natural macromolecular motors, of tens of nanometres in diameter, also show gear effects1. At a smaller scale, the random rotation of a single-molecule rotor encaged in a molecular stator has been observed, demonstrating that a …

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Scientists Identify a Key Protein That May Explain The Anti-Aging and Anti-Cancer Benefits of Dietary Restriction

High nutrients activate HIF-1 through the TOR-S6K pathway, which leads to increased ER stress and shortened lifespan. Other regulators such as PHA-4, SKN-1, AAK-2, DAF-16 and HSF-1 may function in parallel to HIF-1 to modulate DR-induced longevity phenotypes. A protein that plays a key role in tumor formation, oxygen metabolism and inflammation is involved in …

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DARPA Trying To Validate New Theory of Intelligence

Darpa’s latest venture, called “Physical Intelligence” (PI) is to prove, mathematically, that the human mind is nothing more than parts and energy. In other words, all brain activities — reasoning, emoting, processing sights and smells — derive from physical mechanisms at work, acting according to the principles of “thermodynamics in open systems.” Thermodynamics is founded …

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E-books with Larger Screens and Soon Brighter Color

A prototype in-plane electrophoretic display consisting of 1,000 pixels. Credit: Philips MIT TEchnology Review reports A new approach developed by Philips now offers fresh hope for color e-paper displays that are so bright and clear that even traditional liquid crystal displays (LCDs) will pale in comparison. The new approach has the potential to create color …

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Current Space Elevators Tether Expectations and Engine Power Density

Spaceward has a page on space elevator feasibility that looks at tether strength and power to weight ratio for the power system for the space elevator climber. Based on a gradual convergence of experimental and theoretical results, the specific strength of raw CNTs will not exceed 50 MYuri [1 Mega-Yuri = 1 N/Tex = 1 …

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World Health Organization Raises Pandemic threat Level to 5 out of 6

WHO Director General Margaret Chan told a news conference in Geneva as she raised the official alert level to phase 5, the last step before a pandemic. “The biggest question is this: how severe will the pandemic be, especially now at the start,” Chan said. But she added that the world “is better prepared for …

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Electro Thermal Dynamic Stripping Oil Recovery Could Unlock 400 Billion More Barrels of Oil in Alberta at $26/Barrel

A field test was performed from Sept 2006 to August 2007 and the recovery and performance exceeded expectations. The recovery factor was over 75%, energy used per barrel was 23% less than anticipated and peak production rates were better than expected. ET Energy’s Electro Thermal technology could be used to pump out 600 billion barrels …

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Mass 3D Fabrication Possibilities

Chris Phoenix has considered RepRap and cheap 3D desktop manufacturing devices and iterative improvements there as a path evolves into molecular manufacturing. The Reprap can produce its own circuit boards and desktop manufacturing can produce prototypes. I believe that in the near to mid-term the financial and societal impact will be with things like the …

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Progress Toward Reconfigurable Spacecraft Via Magnetic Flux Pinning

There is progress working in the lab and in theory how to create reconfigurable spacecraft. The dynamics and control problems have been worked on in theory, math and simulation and the joints have been mocked and tested on an air table. Success would transform space operations and systems and enable large particle based solar sails, …

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