Levitation recreates nature's dumbbells

Science Daily - Wed, 07/01/2015 - 5:25pm
Using magnetic levitation to imitate weightlessness, physicists have manufactured solid wax models of splash form tektites. "These wax models provide the first direct experimental validation for numerical models of the equilibrium shapes of spinning droplets. This research is of importance to fundamental physics and also to study of tektite formation," an author said.
Categories: Science

Sudden jump in a storm's lightning might warn a supercell is forming

Science Daily - Wed, 07/01/2015 - 5:24pm
A sudden jump in the number of lightning strikes inside a garden-variety thunderstorm might soon give forecasters a new tool for predicting severe weather and issuing timely warnings, according to new research. The sudden increase in lightning is one sign a normal storm is rapidly evolving into a supercell, with a large rotating updraft -- or mesocyclone -- at its heart.
Categories: Science

Sticking to lifestyle guidelines may reduce risk for certain cancers and for overall mortality

Science Daily - Wed, 07/01/2015 - 5:24pm
Following cancer prevention guidelines from the American Cancer Society may modestly reduce your overall risk of developing cancer and have a greater impact on reducing your overall risk of dying early, a study of nearly a half-million Americans has found. Having a healthy body weight and staying active appeared to have the most positive impact.
Categories: Science

Foot-powered cell phone charger for world's needy

Science Daily - Wed, 07/01/2015 - 5:24pm
Engineering students are field-testing their foot-powered cell phone charger in rural villages of the Kingdom of Lesotho. The sophomores hope to sell chargers which use ratchet mechanics.
Categories: Science

Although flu viruses are a moving target, this season's vaccine still offers protection

Science Daily - Wed, 07/01/2015 - 5:23pm
The Centers for Disease Control (CDC) reports that flu activity is “high” or “widespread” in 43 states and call it an epidemic this season. Most of the cases are caused by the H3N2 strain.
Categories: Science

Physical recovery in critically ill patients can predict remission of anxiety, PTSD symptoms

Science Daily - Wed, 07/01/2015 - 5:23pm
Better physical functioning — basic and complex activities considered essential for maintaining independence — is associated with remission of general anxiety and post-traumatic stress disorder (PTSD) symptoms, a two-year longitudinal study involving 13 intensive care units in four U.S. hospitals has found.
Categories: Science

Genetics in depression: What's known, what's next

Science Daily - Wed, 07/01/2015 - 5:23pm
Even with modern genomewide analysis techniques, it has proven difficult to identify genetic factors affecting risk for depression, according to a new review article. "Given the established heritability of depression, there is every reason to expect that with larger studies we will be able to identify genetic loci," said one author. "Identifying ways to generate these larger samples is one of the many challenges before us."
Categories: Science

Brain scientists figure out how a protein crucial to learning and memory works

Science Daily - Wed, 07/01/2015 - 5:23pm
Researchers have found out how a protein crucial to learning works: by removing a biochemical "clamp" that prevents connections between nerve cells in the brain from growing stronger. The finding moves neuroscientists a step closer to figuring out how learning and memory work, and how problems with them can arise.
Categories: Science

Do Mars Rover Photos Show Potential Signs of Ancient Life?

Space.com - Wed, 07/01/2015 - 5:16pm
A careful study of images taken by the NASA rover Curiosity has revealed intriguing similarities between ancient sedimentary rocks on Mars and structures shaped by microbes on Earth. The findings suggest, but do not prove, that life may have existed ear
Categories: Science

GAO Denies Sierra Nevada Protest of Commercial Crew Contract

Space.com - Wed, 07/01/2015 - 4:48pm
The GAO rejected a protest filed by Sierra Nevada Corp. of commercial crew development contracts NASA awarded in September to two other companies.
Categories: Science

Tips For Securing Your Secure Shell

Slashdot - Wed, 07/01/2015 - 4:47pm
jones_supa writes: As you may have heard, the NSA has had some success in cracking Secure Shell (SSH) connections. To respond to these risks, a guide written by Stribika tries to help you make your shell as robust as possible. The two main concepts are to make the crypto harder and make stealing keys impossible. So prepare a cup of coffee and read the tutorial carefully to see what could be improved in your configuration. Stribika gives also some extra security tips: don't install what you don't need (as any code line can introduce a bug), use the kind of open source code that has actually been reviewed, keep your software up to date, and use exploit mitigation technologies.

Read more of this story at Slashdot.








Categories: Science

NASA Approves SpaceX's Plans to Send Astronauts to Space Station

Space.com - Wed, 07/01/2015 - 4:21pm
SpaceX has passed NASA's "certification baseline review," which required the California-based company to outline exactly how it plans to ferry crews to and from the orbiting lab using Dragon and its Falcon 9 rocket.
Categories: Science

Did Gravity Save the Universe from 'God Particle' Higgs Boson?

Space.com - Wed, 07/01/2015 - 4:21pm
The Higgs boson, the so-called 'God particle,' could have destroyed the universe shortly after the Big Bang, but the force of gravity saved the cosmos, scientists say.
Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science

Analysis of Spacecraft Data Reveals Most Earth-like Planet To Date

Slashdot - Wed, 07/01/2015 - 4:05pm
sciencehabit writes: Scientists analyzing data from NASA's Kepler satellite have boosted the tally of known or suspected planets beyond our solar system to more than 4000, they reported at a meeting of the American Astronomical Society. Most are inhospitable — too big, too hot, or too cold for any conceivable life form. But another team seeking to verify Kepler candidates announced they had identified eight new potentially habitable planets, including some close to Earth in size and situation. Unpoetically named 5737.01, one candidate has an orbital period of 331 days and is 30% larger than Earth, Mullally says. That’s good news, because scientists here reported yesterday that planets more than 1.6 times the mass of Earth are unlikely to be dense rocky worlds like ours — assumed to be the only plausible habitats for life.

Read more of this story at Slashdot.








Categories: Science