We now have the most precise estimates for the strength of gravity yet. Two experiments measuring the tiny gravitational attraction between objects in a lab have measured Newton’s gravitational constant, or Big G, with an uncertainty of only about 0.00116 per cent. Until now, the smallest margin of uncertainty for any G measurement has been 0.00137 per cent.

 

 

Sourced through Scoop.it from: www.sciencenews.org

Pioneer 10 and 11 each carry a 6 x 9-inch (15 x 23 centimeters), gold-anodized aluminum plaque. The plaque is affixed to support struts close to the spacecraft’s bus (main body). Carl Sagan and Frank Drake played key roles in designing the plaque and Linda Salzman Sagan, Sagan’s wife at the time, was the artist who actually drew the images engraved on the plaque.

 

 

Sourced through Scoop.it from: blogs.discovermagazine.com

Sea sparkles are buoyant, single-celled algae or plant plankton which can produce light when they are disturbed.

They are mostly restricted to coastal waters, particularly in the vicinity of river mouths, and can appear at during any time of the year.

 

A childish excitement takes over the popular NSW holiday spot as the bright natural phenomenon bioluminescence provides a light show on the foreshore.

Sourced through Scoop.it from: www.abc.net.au

Have you ever wondered how long does it take for a professional photographer prepare a picture for a public eye? What are the steps that need to be taken before publishing that final, satisfying result? Everything‘s not so easy, and Brazilian photographer Gilmar Silva decided to prove it (previously here).
A while ago, this professional wedding and family photographer started a brilliant behind-the-scenes series, that he called LUGARxPHOTO (place and photo), that shows the backstage of professional photoshoots. First picture always shows the working environment of the photographer, and the second one reveals the final result which is sometimes hard to believe.

Sourced through Scoop.it from: www.boredpanda.com

Scientists have shown that water is likely to be a major component of those exoplanets (planets orbiting other stars) which are between two to four times the size of Earth. It will have implications for the search of life in our Galaxy.

 

Scientists have shown that water is likely to be a major component of those exoplanets (planets orbiting other stars) which are between two to four times the size of Earth. It will have implications for the search of life in our Galaxy. The work is presented at the Goldschmidt conference in Boston.

 

 

Sourced through Scoop.it from: www.sciencedaily.com

An Artificial General Intelligence (AGI) would be a machine capable of understanding the world as well as any human, and with the same capacity to learn how to carry out a huge range of tasks.

 

AGI doesn’t exist yet, but has featured in science-fiction stories for more than a century, and been popularized in modern times by films such as 2001: A Space Odyssey. Fictional depictions of AGI vary widely, although tend more towards the dystopian vision of intelligent machines eradicating or enslaving humanity, as seen in films like The Matrix or The Terminator. In such stories, AGI is often cast as either indifferent to human suffering or even bent on mankind’s destruction.

 

In contrast, utopian imaginings, such as Iain M Banks’ Culture civilization novels, cast AGI as benevolent custodians, running egalitarian societies free of suffering, where inhabitants can pursue their passions and technology advances at a breathless pace. Whether these ideas would bear any resemblance to real-world AGI is unknowable since nothing of the sort has been created, or, according to many working in the field of AI, is even close to being created.

Sourced through Scoop.it from: www.zdnet.com

In remote areas of the world, everyday items like electrical outlets and batteries are luxuries. Health care workers in these areas often lack electricity to power diagnostic devices, and commercial batteries may be too expensive. Today, researchers report a new type of battery — made of paper and fueled by bacteria — that could overcome these challenges.

 

 

Sourced through Scoop.it from: www.sciencedaily.com