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Scientists work to keep NASA's space telescope in the dark

Scientists work to keep NASA's space telescope in the dark

Science
Sept. 12 (UPI) -- NASA scientists are taking on the vital task of ensuring unwanted infrared light does not interfere with the optical testing of the James Webb Space Telescope."One of the challenges of testing an infrared telescope is that room-temperature objects [such as the walls of the vacuum chamber itself, or the warm electronics systems inside it] glow at the wavelengths of light that the telescope is trying to measure," Randy Kimble, a scientist at NASA's Goddard Space Flight Center in Greenbelt, Md., said in a press release. "If not carefully controlled, that warm glow can provide an unwanted background in the telescope's images, which would compromise the optical testing."Due to the telescope's extreme sensitivity to infrared light, scientists are using a cold, gaseous helium sh...
Science funding: Will 'picking winners' work?

Science funding: Will 'picking winners' work?

Science
An ambitious Conservative minister has set out a strategy to turn the UK's scientific expertise into new products and services that will generate jobs and wealth for the economy. That was in 1983. The minister was Kenneth Clarke, who launched the £350m Alvey programme. It was designed to propel Britain to the forefront of advanced computing. But the policy of government subsidies for the research and development of favoured companies - known as "picking winners" - did not fit in with Margaret Thatcher's policy of introducing free market principles to the economy. Five years after its inception, the government pulled the plug on the Alvey programme.Thirty five years on, another Mr Clark, the Business Secretary, Greg Clark, announced £140m to support collaboration between industry and academ
Why traditional investment strategies just don’t work anymore

Why traditional investment strategies just don’t work anymore

Finance
Traditional investment strategies no longer work, and no single factor explains the failure of long-held investment tactics. Market volatility, global economic interdependence, emotional investing, inflation and a low-interest-rate environment all played a role in the demise of traditional investment strategies.Let's take a closer look at each factor individually to better understand why the old methodology comes up short in this new market reality.There's no way to sugarcoat it — market volatility is the new normal in today's investing environment. For decades millions of American investors have followed an aggressive growth strategy — a strategy that worked. For many it went like this: During those wealth accumulation years, invest heavily in equities such as blue-chip stocks. Rinse. Rep
Should you outsource your work wardrobe?

Should you outsource your work wardrobe?

Finance
Amazon's Alexa is judging your fashion sense nowOnce upon a time, American women dressed in a work uniform: long skirts, kitten heels, modest blouses. But in 2017, female employees can wear everything from sheath dresses to hoodies while on the job. That makes choosing what to put on every morning trickier than ever. "The days of just throwing on a suit are over," says Scarlett DeBease, a professional wardrobe coach based in Westchester, New York. "That old standby doesn't work anymore. When a woman dresses in a suit, sometimes she can look like a stock photo." Services like Trunk Club, Le Tote, Rent the Runway and MM La Fleur claim to help with the "what do I wear today?" question. Users take online quizzes about their style needs and preferences, and then a box of pre-assembled work ou...
The Bitcoin Block Clock Jr. Is Half Full Node, Half Work of Art

The Bitcoin Block Clock Jr. Is Half Full Node, Half Work of Art

Finance
Shutterstock photoBitcoin is a decentralized system of digital cash in which users don't need to trust anyone else with their money; however, the full benefits of this technology are only seen when users operate a full node on the network. The vast majority of Bitcoin users do not operate their own full nodes, but one man is trying to change that with a piece of hardware he calls the Bitcoin Block Clock Jr.There are many good reasons for individual Bitcoiners to operate a full node. Full nodes are responsible for validating transactions and blocks on the Bitcoin network. Only by running full nodes can users know with full certainty that they received a valid payment. Additionally, the more users that run full nodes, the more decentralized the Bitcoin network is, making it harder to shut do...