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Neurologists have found a scientific explanation for your lack of motivation

If you often struggle to get yourself motivated - or you have friends who seem stuck in a permanent state of apathy - new research might help to explain your slacker tendencies. Scientists have discovered a collection of inefficient connections in certain parts of the brain, and these weak links could be making things more difficult for some of us to rouse ourselves into action...

It’s not (completely) your fault. -ScienceAlert

Cryovolcanoes: Meet the Frozen Volcanoes on Pluto

Scientists spotted a possible ice volcano on the surface of Pluto. At about 90 miles (150 kilometers) across and 2.5 miles (4 kilometers) high. 

Scientists have assembled the highest-resolution color view of one of the cryovolcanoes.

If confirmed, it would be the largest such feature discovered in the outer solar system. More at: http://go.nasa.gov/1mYCtyZ

The size of the Orion spacecraft vs Apollo.

The simple discovery that a piece of wire mesh can stop a flame in its tracks saved the lives of thousands of miners.

This demonstration shows how a simple lamp made of gauze could contain the open candle flames that miners used before 1815. With the safety lamp, any potential explosions would stay contained and never escalate to dangerous levels (although mining remained an extremely dangerous occupation).

Watch the whole demo and hear the full story here.

Vibrant winter stars over Lake Tahoe, a week ago. That’s Sirius’s bright reflection on the water! [3000x1633]

Source: http://i.imgur.com/ZnhiC8R.jpg

Meet Surena III: University of Tehran Unveils Its New Humanoid Robot

Researchers from the University of Tehran unveiled the new generation of their humanoid robot called Surena III. The robot stands 1.9 meters tall (6.2 feet) and weighs 98 kilograms (216 lb). It is also  equipped with numerous sensors that includes a Kinect-based 3D vision module, and is powered by 31 servomotors. Surena III is capable of walking up and down ramps and stairs, and along irregular surfaces up to a speed of .2m/s (about 8 inches a second).

So perhaps the robot won’t be running any marathons anytime soon, but it’s still pretty remarkable. Plus, the robot was designed for other purposes besides speed.

Read more at: http://futurism.com/links/meet-surena-iii-university-of-tehran-unveils-its-new-humanoid-robot/

What’s in a Name? Gaming Names Reveal Lots About the Player’s Personality

What’s in a name? In the case of the usernames of video gamers, a remarkable amount of information about their real world personalities, according to research by psychologists at the University of York.

The research is in Computers in Human Behavior. (full open access)

"Is There A Santa Claus?-A Physicist View" SPY MAGAZINE Jan. 1990

  Consider the following:

1) No known species of reindeer can fly. But there are 300,000 species of living organisms yet to be classified, and while most of these are insects and germs, this does not COMPLETELY rule out flying reindeer which only Santa has ever seen.

2) There are 2 billion children (persons under 18) in the world. BUT since Santa doesn’t (appear) to handle the Muslim, Hindu, Jewish and Buddhist children, that reduces the workload to 15% of the total - 378 million according to Population Reference Bureau. At an average (census) rate of 3.5 children per household, that’s 91.8 million homes. One presumes there’s at least one good child in each.

3) Santa has 31 hours of Christmas to work with, thanks to the different time zones and the rotation of the earth, assuming he travels east to west (which seems logical).

This works out to 822.6 visits per second. This is to say that for each Christian household with good children, Santa has 1/1000th of a second to park, hop out of the sleigh, jump down the chimney, fill the stockings, distribute the remaining presents under the tree, eat whatever snacks have been left, get back up the chimney, get back into the sleigh and move on to the next house.

Assuming that each of these 91.8 million stops are evenly distributed around the earth (which, of course, we know to be false but for the purposes of our calculations we will accept), we are now talking about .78 miles per household, a total trip of 75-½ million miles, not counting stops to do what most of us must do at least once every 31 hours, plus feeding and etc.

This means that Santa’s sleigh is moving at 650 miles per second, 3,000 times the speed of sound. For purposes of comparison, the fastest man- made vehicle on earth, the Ulysses space probe, moves at a poky 27.4 miles per second - a conventional reindeer can run, tops, 15 miles per hour.

4) The payload on the sleigh adds another interesting element. Assuming that each child gets nothing more than a medium-sized lego set (2 pounds), the sleigh is carrying 321,300 tons, not counting Santa, who is invariably described as overweight.

On land, conventional reindeer can pull no more than 300 pounds. Even granting that ‘flying reindeer’ (see point #1) could pull TEN TIMES the normal amount, we cannot do the job with eight, or even nine.

We need 214,200 reindeer. This increases the payload - not even counting the weight of the sleigh - to 353,430 tons. Again, for comparison - this is four times the weight of the Queen Elizabeth.

5) 353,000 tons traveling at 650 miles per second creates enormous air resistance - this will heat the reindeer up in the same fashion as spacecraft re-entering the earth’s atmosphere. The lead pair of reindeer will absorb 14.3 QUINTILLION joules of energy. Per second. Each.

In short, they will burst into flame almost instantaneously, exposing the reindeer behind them, and create deafening sonic booms in their wake. The entire reindeer team will be vaporized within 4.26 thousandths of a second.

Santa, meanwhile, will be subjected to centrifugal forces 17,500.06 times greater than gravity. A 250-pound Santa (which seems ludicrously slim) would be pinned to the back of his sleigh by 4,315,015 pounds of force.> In conclusion - If Santa ever DID deliver presents on Christmas Eve, he’s dead now.

(NOTE: This appeared in the SPY Magazine (January, 1990) )

These are the Most Incredible Photos Shot by NASA’s Cassini Probe

The Cassini space probe has captured its fair share of eye-popping photos since launching in 1997 and arriving in Saturn’s orbit in 2004. Here’s a collection of some of Cassini’s most remarkable photographs. Many of them were compiled by Reddit user I_Say_I_Say, and others were featured here before or obtained from NASA’s website: You can find a massive collection of Cassini’s photos in the mission gallery on NASA’s website.Thanks Petapixel

1.A massive storm stretching across the surface of the planet. 2.Saturn’s gradation and rings. 3.Three of Saturn’s moons (Titan, Mimas, and Rhea) captured in a single photo. 4.Saturn casting a shadow on its rings. 5.Saturn’s icy moon Enceladus. 6.Saturn, its rings, and its moon Dione. 7. Earth seen as a pale blue dot under Saturn’s rings. 8.Saturn’s moon Rhea hovering in front of Saturn’s largest moon, Titan. 9.Saturn casting its shadow on its rings. 10.Saturn and its moon Titan

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Glowing bandages can reduce the chances of antibiotic-resistant bugs