"As the legs unfurl to power the jump," Burrows says, "both have to move at exactly the same time. If they didn't, the animal would start to spiral out of control." Larger animals, whether kangaroos or NBA players, rely on their nervous system to keep their legs in sync when pushing off to jump—using a constant loop of adjustment and feedback. But for the issus, their legs outpace their nervous system. By the time the insect has sent a signal from its legs to its brain and back again, roughly 5 or 6 milliseconds, the launch has long since happened. Instead, the gears, which engage before the jump, let the issus lock its legs together—synchronizing their movements to a precision of 1/300,000 of a second.

"The commonly held belief that entrepreneurs are young college students working out of their dorms is simply wrong," says study author Vivek Wadhwa of Duke University's Center for Entrepreneurship and Research Commercialization. "People typically come to a stage where they're tired of working for other people. They think, 'I'm 40 and I haven't made it big yet. This is my last chance.' That really spurs the entrepreneurial spirit."

A team of Japanese and German researchers have carried out the largest-ever simulation of neural activity in the human brain, and the numbers are both amazing and humbling. § The hardware necessary to simulate the activity of 1.73 billion nerve cells connected by 10.4 trillion synapses (just 1 percent of a brain’s total neural network) for 1 biological second: 82,944 processors on the K supercomputer and 1 petabyte of memory (24 bytes per synapse). That 1 second of biological time took 40 minutes, on one of the world’s most-powerful systems, to compute.

Scientists had struggled to find the trigger for so-called Colony Collapse Disorder (CCD) that has wiped out an estimated 10 million beehives, worth $2 billion, over the past six years. Suspects have included pesticides, disease-bearing parasites and poor nutrition. But in a first-of-its-kind study published today in the journal PLOS ONE, scientists at the University of Maryland and the US Department of Agriculture have identified a witch’s brew of pesticides and fungicides contaminating pollen that bees collect to feed their hives. The findings break new ground on why large numbers of bees are dying though they do not identify the specific cause of CCD, where an entire beehive dies at once.

People often think that the big city is a dangerous place: they worry that they might get murdered, for instance. Being killed on purpose is more likely in town, according to new research, but it is so rare compared to dying in an accident of some type that in fact you would be much more likely to die unexpectedly in the countryside - in America, anyway.

I studien har man undersökt 27.000 män mellan 45 och 82 år under sexton års tid. Den visar att även om man räknar bort faktorer som fysisk aktivitet, sömn, matvanor och vikt så ökar risken dö i hjärtinfarkt eller någon annan hjärtsjukdom med 27 procent om man hoppar över frukosten.

In the study, 10 untrained Goffin’s cockatoos faced a puzzle box showing a nut behind a transparent door secured by a series of five different interlocking devices, each one jamming the next along in the series. To retrieve the nut the birds had to first remove a pin, then a screw, then a bolt, then turn a wheel 90 degrees, and then shift a latch sideways. § One bird, called Pipin, cracked the problem unassisted in less than two hours, and several others did it after being helped either by being presented with the series of locks incrementally or being allowed to watch a skilled partner doing it.

The levels of exposure to radiation following the leaks and explosions at the earthquake-damaged Fukushima Daiichi nuclear power station in 2011 were so low that they led today to this important conclusion from experts convened in Vienna by the United Nations Scientific Committee on the Effect of Atomic Radiation: It is unlikely to be able to attribute any health effects in the future among the general public and the vast majority of workers.

ETT travel timeSeating a maximum of six passengers per tube plus a baggage compartment, the ETT can travel at a speed of approximately 4,000 miles per hour while remaining airless and frictionless. Thanks to magnetic levitation, the vacuum speed means you can go from New York to Los Angeles in a mere 45 minutes, New York to Beijing in two hours, or around the world in only six hours. Despite the high velocity, passengers will not experience discomfort because the tube apparently only produce 1G of force at top speed, comparable to riding in a normal car on a highway.

Cognitive neuroscientist Sid Kouider of CNRS, the French national research agency, in Paris watched for swings in electrical activity, called event-related potentials (ERPs), in the babies' brains. In babies who were at least 1 year old, Kouider saw an ERP pattern similar to an adult's, but it was about three times slower. The team was surprised to see that the 5-month-olds also showed a late slow wave, although it was weaker and more drawn out than in the older babies. Kouider speculates that the late slow wave may be present in babies as young as 2 months.