US Life expectancy at birth increased to 78.2 years in 2009, up slightly from 78.0 years in 2008. Life expectancy was up two-tenths of a year for males (75.7 years) and up one-tenth of a year for females (80.6 years). Life expectancy for the U.S. white population increased by two-tenths of a year. Life expectancy …
Carnival of Space 188 is up at Aartscope This site provided : Russia’s plans for a megawatt nuclear space generator for Mars missions, lunar bases and space tugs. The full paper on using minimag Orion for interstellar missions VASIMR plasma rocket plans for 5-10 years to get to 1-6 megawatt systems If you liked this …
1. Most military RF transmitters today use large, fixed-voltage power converters to supply conditioned power to the semiconductor power amplifier, DARPA officials explain. This is barrier to higher levels of microsystem integration. DARPA is developing a radio transmitter that generates radio signals efficiently through the DC power supply of the transmitter. They want the new …
A) Free-standing films of BN, MoS2 and WS2. On the right is a graphene free-standing film. The bottom row represents hybrids of graphene mixed with BN, MoS2 and WS2. In each case the mass ratio is 50:50. B) Stress strain curves for the films in A. C) Free standing hybrid WS2/SWNT films. A new way …
MIT Technology Review – Researchers are working on composites that would make strong magnets that need less of the hard-to-get ingredients. Stronger, lighter magnets could enter the market in the next few years, making more efficient car engines and wind turbines possible. Researchers need the new materials because today’s best magnets use rare-earth metals, whose …
1. Nuclear Green has an article Mark Z. Jacobson’s proliferation of errors Stanford’s Mark Jacobson has a new paper “Providing all Global Energy with Wind, Water, and Solar Power, Part I: Technologies, Energy Resources, Quantities and Areas of Infrastructure, and Materials” Jacobson, in effect, argues that by avoiding the construction of civilian power reactors, the …
MIT researchers increase their odds of detecting an Earthlike planet by working on a combination of satellite missions. Kepler space telescope’s major drawback is that because the telescope is only focused on a narrow field of the sky, it is observing faraway, faint stars and may be missing closer stars — the kind that will …
Circular patterns within the cosmic microwave background suggest that space and time did not come into being at the Big Bang but that our universe in fact continually cycles through a series of “aeons”. That is the sensational claim being made by University of Oxford theoretical physicist Roger Penrose, who says that data collected by …
Petrobank gives its latest update on the Toe Heal Air Injection (THAI) oil recovery process and on multi-stage frac drilling advances It appears that it will take until 2015 to prove this technology out at 100,000 barrel per day volumes. So this will not have significant impact on oil supplied until after 2020. The multistage …
The Kardashev scale is a method of measuring an advanced civilization’s level of technological advancement. Type I — a civilization that is able to harness all of the power available on a single planet — has approximately 10^16 or 10^17 W available. Earth specifically has an available power of 1.74 × 10^17 Watts (174 peta …
Ad Support : Nano Technology Netbook Technology News Computer Software PNAS – Transcranial magnetic stimulation of posterior parietal cortex affects decisions of hand choice Deciding which hand to use for an action is one of the most frequent decisions people make in everyday behavior. Using a speeded reaching task, we provide evidence that hand choice entails …