Science & Technology

China is developing hypersonic spaceplane with horizontal takeoff

RT
Sat, 13 Aug 2016 14:46 UTC

© CCTV 13
This screenshot from state television broadcast on the hypersonic spaceplane shows an aerodynamically optimized aircraft beginning to accelerate to hypersonic speeds.

China is planning to take space exploration to a new level, as it develops a new "spaceplane" that could take off from a runway and fly at hypersonic speed before blasting into space and back.

The China Aerospace Science and Technology Corporation (CATSC) is behind the project of a plane/spacecraft hybrid that will travel back and forth between the runway and space orbit at hypersonic speeds, Popular Science reported.

Development and testing is scheduled for the next three to five years. The first deployment date is estimated for 2030.

The spaceplane will be equipped with a cycle engine. It will have a turbofan or turbojet engine as well as a ramjet engine that will allow the plane to horizontally takeoff from the runway and fly through the atmosphere.

A new wireless hack can unlock 100 million Volkswagens by keyless entry system

Andy Greenberg
Wired
Wed, 10 Aug 2016 14:13 UTC

In 2013, when University of Birmingham computer scientist Flavio Garcia and a team of researchers were preparing to reveal a vulnerability that allowed them to start the ignition of millions of Volkswagen cars and drive them off without a key, they were hit with a lawsuit that delayed the publication of their research for two years. But that experience doesn't seem to have deterred Garcia and his colleagues from probing more of VW's flaws: Now, a year after that hack was finally publicized, Garcia and a new team of researchers are back with another paper that shows how Volkswagen left not only its ignition vulnerable but the keyless entry system that unlocks the vehicle's doors, too. And this time, they say, the flaw applies to practically every car Volkswagen has sold since 1995.

Later this week at the Usenix security conference in Austin, a team of researchers from the University of Birmingham and the German engineering firm Kasper & Oswald plan to reveal two distinct vulnerabilities they say affect the keyless entry systems of an estimated nearly 100 million cars. One of the attacks would allow resourceful thieves to wirelessly unlock practically every vehicle the Volkswagen group has sold for the last two decades, including makes like Audi and Škoda. The second attack affects millions more vehicles, including Alfa Romeo, Citroen, Fiat, Ford, Mitsubishi, Nissan, Opel, and Peugeot.

Scientists have found a woman whose eyes have a whole new type of colour receptor

Fiona MacDonald
Science Alert
Mon, 25 Jul 2016 13:51 UTC

After more than 25 years of searching, neuroscientists in the UK recently announced that they've discovered a woman who has an extra type of cone cell - the receptor cells that detect colour - in her eyes.

According to estimates, that means she can see an incredible 99 million more colours than the rest of us, and the scientists think she's just one of a number of people with super-vision, which they call "tetrachromats", living amongst us.

Scientists preparing to unveil new earth-like planet that orbits its star at distance that could favor life

Phys.org
Fri, 12 Aug 2016 00:00 UTC

Scientists are preparing to unveil a new planet in our galactic neighbourhood which is "believed to be Earth-like" and orbits its star at a distance that could favour life, German weekly Der Spiegel reported Friday.

The exoplanet orbits a well-investigated star called Proxima Centauri, part of the Alpha Centauri star system, the magazine said, quoting anonymous sources.

"The still nameless planet is believed to be Earth-like and orbits at a distance to Proxima Centauri that could allow it to have liquid water on its surface—an important requirement for the emergence of life," said the magazine.

"Never before have scientists discovered a second Earth that is so close by," it said, adding that the European Southern Observatory (ESO) will announce the finding at the end of August.

Scientists able to reprogram mice through laser-guided neuron manipulation

RT
Fri, 12 Aug 2016 18:56 UTC

Scientists at Columbia University in New York have used light technology to control the mind of a living creature, demonstrating that brains can be manipulated to change behavior and processes far beyond what was previously thought possible.

Part of a $300 million "brain-mapping" project, the 'U.S. BRAIN Initiative' is, ahem, the brainchild of neuroscience professor Rafael Yuste and his team, and its results offer hope to millions of people around the globe suffering from neurological conditions such as epilepsy.

Published in Science on Friday, the study was carried out on mice and involved the administering of light-sensitive proteins targeted at certain areas of the brain. Once the proteins penetrated particular cells, scientists used special ultra-thin beams of light to make contact with the neuron inside and 'turn it on'.

The team found that "activation of a single neuron" can spark a response across an 'ensemble' of neurons, an effect which can be "reactivated at later time points without interfering with endogenous circuitry".

Scientists developing liquid that would allow fabrics to repair themselves

RT
Fri, 12 Aug 2016 18:50 UTC

The days of patching up a torn pair of jeans with spare fabric may soon be over. Scientists are working on a special liquid that essentially allows everyday clothes to repair themselves.

The trick lies in a self-healing, polyelectrolyte liquid that is currently being developed by researchers at Penn State University.

Made from bacteria and yeast, the liquid can help most fabrics bind together once torn. It contains proteins similar to those found in squid ring teeth, which also have self-repairing qualities.

The healing process involves putting the substance on the torn fabric, applying warm water, and pressing the edges together. The fabric then reattaches, effectively repairing itself.

Harry Potter would be proud: Russian company makes invisibility cloak for electronics

RT
Fri, 12 Aug 2016 17:17 UTC

A Russian defense company has created a "cloak," which it says can make electronic objects invisible to enemy radar. The aim of the fiber technology, which is used in the cloak, is to make weapons invisible to prying eyes and detection systems.

The St. Petersburg-based company Roselectronics has come up with the invention and says it can make weapons that use thermal, infrared, and electromagnetic radar in targeting invisible.

The technology works by placing the insulating object over electronic devices, which makes them undetectable.

New infrared images show stunning images of Saturn's atmosphere

Abigail Beall
Daily Mail
Wed, 10 Aug 2016 14:15 UTC

Looking at the planet using the infrared part of the light spectrum reveals the fascinating swirls and streaks created by clouds above the planet's northern hemisphere. The view was produced by space imaging enthusiast Kevin Gill, an engineer at Nasa

With its blue, green and cream-coloured swirls, in some ways this image resembles an abstract work of art. But the photograph released by Nasa actually shows Saturn's atmosphere in stunning detail, and was taken using an infrared filter. Looking at the planet using the infrared part of the light spectrum reveals the fascinating swirls and streaks created by clouds above the planet's northern hemisphere.

The view was produced by space imaging enthusiast Kevin Gill, an engineer at Nasa's Jet Propulsion Laboratory in California. The view was made using images taken by Cassini's wide-angle camera on July 20, 2016, using a combination of spectral filters sensitive to infrared light,' Nasa said. Filters like these, which are sensitive to absorption and scattering of sunlight by methane in Saturn's atmosphere, have been useful throughout Cassini's mission.

They can be used to determining the structure and depth of cloud features in the atmosphere. This new image comes just a week after an image showing the rings of Saturn appearing to melt. Nasa said the amazing optical illusion was caused by light being reflected by Cassini's camera. It showed Saturn's A and F rings appear bizarrely warped where they intersect the planet's limb, whose atmosphere acts here like a very big lens.

NASA's Juno spacecraft releases trove of images from Jupiter

RT
Fri, 12 Aug 2016 13:41 UTC

NASA's Juno spacecraft has released its latest dispatch of images of Jupiter. The pictures were snapped at a time when the stormy planet is not visible to astronomers on Earth, making them a unique addition to the gallery.

NASA's release of the so-called "marble movie" shows that Jupiter is such a pretty planet, it doesn't need a filter other than for methane. The phrase "marble movie" refers to the size of Jupiter in the images and how small it looks.

The timing of these images is also unique as they show Jupiter during a time when it would normally be invisible to NASA's ground support. During a period of the year, Jupiter's orbit brings it too close to the sun to be visible from Earth, leaving astronomers in the dark. However, JunoCam continued to take a picture every 15 minutes.

Two of Pluto's mountains could be ice-spewing volcanoes

Daily Galaxy
Thu, 11 Aug 2016 20:10 UTC

This past January NASA released an up-close image (shown below) of what may be one of the strangest features on Pluto: a massive volcano that spewed ice instead of lava. "This feature is enormous," NASA said on its website. "If it is in fact a volcano, as suspected, it would be the largest such feature discovered in the outer solar system."

"It's a huge finding that small planets can be active on a massive scale, billions of years after their creation," said New Horizons principal investigator Alan Stern, of the Southwest Research Institute (SWRI).

"The New Horizons mission has taken what we thought we knew about Pluto and turned it upside down," said Jim Green, director of planetary science at NASA Headquarters in Washington. "It's why we explore - to satisfy our innate curiosity and answer deeper questions about how we got here and what lies beyond the next horizon."

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Science & Technology

China is developing hypersonic spaceplane with horizontal takeoff

A new wireless hack can unlock 100 million Volkswagens by keyless entry system

Scientists have found a woman whose eyes have a whole new type of colour receptor

Scientists preparing to unveil new earth-like planet that orbits its star at distance that could favor life

Scientists able to reprogram mice through laser-guided neuron manipulation

Scientists developing liquid that would allow fabrics to repair themselves

Harry Potter would be proud: Russian company makes invisibility cloak for electronics

New infrared images show stunning images of Saturn's atmosphere

NASA's Juno spacecraft releases trove of images from Jupiter

Two of Pluto's mountains could be ice-spewing volcanoes

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