25 kilometer tall towers for single stage to orbit launches

High Altitude Launch for a Practical SSTO (6 pages, 2003 by Geoffrey A. Landis and Vincent Denis) Existing engineering materials allow the construction of towers to heights of many kilometers. Orbital launch from a high altitude has significant advantages over sea-level launch due to the reduced atmospheric pressure, resulting in lower atmospheric drag on the …

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In this Information Age, What will happen when China triples the US in University Graduates in 2020 ?

BBC News – The forecasts for the shape of the “global talent pool” in 2020 show China as rapidly expanding its graduate numbers – set to account for 29% of the world’s graduates aged between 25 and 34. The biggest faller is going to be the United States – down to 11% – and for …

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Apple Confident Future iPhone and Apple TV Products

Fortune – In mid-April, Apple had its first ultra-secretive “Top 100” meeting since Jobs died. The hush-hush conclave is a rare opportunity for top managers — not necessarily chosen by rank, but rather by the CEO’s assessment of who are the most valuable contributors at any given time — to learn what products and services …

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Nvidia’s next mobile Chips Wayne and Grey

Venturebeat – Nvidia’s mobile business will grow thanks to growing acceptance of Tegra 3, a mobile processor that combines Nvidia’s high-end graphics with five computing brains. A leader in PC graphics, Nvidia has reinvented itself in the last five years to become a major player in mobile graphics chips. It competes with huge rivals such …

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Rapamycin Slows Aging in Mice

Aging Cell – Rapamycin Slows Aging in Mice. Rapamycin increases lifespan in mice, but whether this represents merely inhibition of lethal neoplastic diseases, or an overall slowing in multiple aspects of aging is currently unclear. We report here that many forms of age-dependent change, including alterations in heart, liver, adrenal glands, endometrium, and tendon, as …

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Proposal for a Concept Assessment of a Fission Fragment Rocket Engine (FFRE) Propelled Spacecraft

A new technology, the Fission Fragment Rocket Engine (FFRE), requires small amounts of readily available, energy dense, long lasting fuel, significant thrust at specific impulse of a million seconds, and increases safety by charging the reactor after arrival in LEO. If this study shows the FFRE potential, the return could be immense through savings in …

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Rapidly Increased Wireless Capacity from Light Radio Cubes

A gadget invented at Bell Labs—a programmable, pint-sized transmitter that requires no new traditional cell towers—could rapidly add capacity and thus help avoid data bottlenecks. The gadgets are known as light radio cubes. Measuring just six centimeters on each side, they are miniature transmitters and receivers that can be programmed to work flexibly in different …

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