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+ - New Technique to Develop Single Molecule Diode

Submitted by William Robinson
William Robinson writes: Under the direction of Latha Venkataraman, associate professor of applied physics at Columbia Engineering, researchers have designed a new technique to create a single-molecule diode, that has rectification ratio as high as 250, and 'ON' current as high as 0.1 microamps. The idea of creating a single-molecule diode was suggested by Arieh Aviram and Mark Ratner who theorized in 1974, which has been the 'holy grail' of molecular electronics ever since its inception to achieve further miniaturization, because single molecule represent the limit of miniaturization.

+ - MAVEN detects auroras in northern skies of MARS

Submitted by William Robinson
William Robinson writes: One day, when humans go to Mars, they might find that, occasionally, the Red Planet has green skies. In late Dec. 2014, NASA's MAVEN spacecraft detected evidence of widespread auroras in Mars's northern hemisphere. According to the MAVEN data, solar particles that caused the "Christmas lights" penetrated deeply into the Martian atmosphere---sparking auroras less than 100 km from the surface. That's lower than auroras on Earth, which range from 100 km to 500 km high. Auroras occur, both on Earth and Mars, when energetic particles from space rain down on the upper atmosphere. On Earth, these particles are guided toward the poles by our planet's global magnetic field. That's why auroras are seen most often around the Arctic and Antarctic. On Mars, there is no organized planetary magnetic field to guide the particles north and south—so they can go anywhere. The European Space Agency's Mars Express had also found ultraviolet glow coming from "magnetic umbrellas" in the southern hemisphere, ten years ago.

Comment: Re:Standing on the Shoulders of Giants (Score 5, Insightful) 173

by William Robinson (#47981063) Attached to: Mangalyaan Successfully Put Into Mars Orbit
Most certainly ISRO must have gained a lot from previous mission whether succesful or failures and most certainly ISRO must have access to better technology. But that does not undermine the efforts of ISRO scientists.

You need to recall that China's mission failed in 2011, and read your arguments/nitpicking again. China's failure in 2011 simply implies that with all the advantages you mentioned, MARS mission is still a challange. And ISRO needs to be praised for what they achieved.

+ - Indian Spacecraft "Mangalyaan" Placed in MARS orbit

Submitted by William Robinson
William Robinson writes: The spacecraft called Mangalyaan (“Mar’s craft”) which was launched in November last year, slowed down just enough to touch the orbit early Wednesday (Indian Time), securing India a place in the elite global space club of Martian explorers. More than half of the 51 Mars missions launched globally have failed. India’s Mars entry is the fourth, after the United States, Europe and Russia. But India’s mission cost a fraction of NASA’s $670 million Maven which entered Mars on Sunday. The Curiosity Rover, which touched down on Mars in 2012, cost nearly $2 billion. By comparison, India’s $72 million Mars orbiter is the cheapest inter-planetary mission in the world.

+ - Mangalyaan's main engine test fired for 4 seconds.

Submitted by William Robinson
William Robinson writes: Before the spacecraft is scheduled to enter Mars orbit, Indian Space Research Organisation (Isro) scientists reignited the Mars Orbiter Mission spacecraft's main engine for four seconds as a trial. The liquid apogee motor (LAM) engine has been idle for about 300 days since the spacecraft left the Earth's orbit on a Martian trajectory on December 1, 2013. The short-duration test was to ensure that the engine is in good shape for the 24-minute crucial manoeuvre on Wednesday.

+ - Mangalyaan Gets Ready to Enter MARS Orbit

Submitted by William Robinson
William Robinson writes: India's Mars Orbiter Mission, known as Mangalyaan is now at a distance of just nine million kilometres from the red planet, and is scheduled to enter the orbit of Mars at 7.30 am on September 24. Mangalyaan was launched on 5th November 2013 by ISRO, presently busy planning to reduce the speed of the spacecraft through the process of firing the LAM engine and bring it to 1.6 km/sec, before it is captured by the planet's gravity.

+ - Snipping HIV-1 Out From Human Cells Achieved

Submitted by William Robinson
William Robinson writes: Scientists from Temple University School of Medicine have achieved a way to snip out the integrated HIV-1 genes for the very first time. They created molecular tools to delete the HIV-1 proviral DNA. When deployed, a combination of a DNA-snipping enzyme called a nuclease and a targeting strand of RNA called a guide RNA (gRNA) hunt down the viral genome and excise the HIV-1 DNA. From there, the cell's gene repair machinery takes over, soldering the loose ends of the genome back together – resulting in virus-free cells.

+ - Hunt for Gravitational Waves Begin as Black Hole Trio Discovered.

Submitted by William Robinson
William Robinson writes: Astronomers from Max Planck Institute for Radio Astronomy in Bonn, Germany, have discovered three closely orbiting supermassive black holes in a galaxy more than 4 billion light-years away. This is the tightest trio of black holes known to date. Researchers say the discovery will help astronomers hunt gravitational waves, the ripples in the curvature of spacetime that propagate as a wave, travelling away from the source.

Comment: Re:Lots of things can be exploited. (Score 1) 44

Simple solution is to patch it although it might be harder on some devices.

Agreed.

I do welcome these kind of reports, because they will motivate procrastinating managers. I know managers having big 'change resistance', with simple arguments like "Does it affect us?". These kind of report does tell them why it is much better to act now.

Wherever you go...There you are. - Buckaroo Banzai

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