You may have trouble finding a hotspot in that store you are visiting, but there is one place they are persistent: inside neutron stars. A new study shows that instabilities can create intense magnetic hot spots that survive for millions of years, even after the star's overall magnetic field has decayed significantly.
When a massive star consumes its nuclear fuel and collapses under its own gravity in a supernova explosion, it can result in a neutron star. These very dense objects have a radius of about 10 kilometers and yet are 1.5 times more massive than the Sun. They have very strong magnetic fields and are rapid rotators, with some neutron stars spinning more than 100 times per second round their axis.
In the 1980s, environmentalists and epidemiologists began to statistically correlate attention problems in children and lower scores on tests with flame retardants used in furniture, chemicals that had become popular because parents and fire departments wanted to prevent "flashover" events during house fires - explosions in closed rooms.
Though countries like the United States and Ireland have far more forest than they did a century ago, professional environmentalists insist there needs to be more. From butterflies to bees, some groups insist more of the modern world must be reverted to nature, even when it comes to formerly ecologic wins like hydroelectric dams.
Large ecosystems bring stability, they insist. But that isn't really true. Instead, stability and diversity happen when the ecosystem is complex, not just because it is large. And he branching complexity of rivers are absolutely vital in affecting regional population stability and persistence in nature.
The Attorneys General of Democratic states Washington, Massachusetts, Connecticut, New Jersey, Pennsylvania, Oregon, Maryland, New York (plus the District of Columbia) are filing a lawsuit against the Trump administration to block the open source distribution of materials that enable the printing of guns using 3-D printers.
A recent study in European Journal of Clinical Nutrition
finds that picky eaters are healthier
That doesn't mean you shouldn't encourage kids to try new things, but they are not going to end up unhealthy if they sat at the dinner table for an hour and still didn't eat that cabbage. And it debunks claims that picky eaters are at higher risk of being underweight, with poor growth, or being overweight.
The National Nature Reserve of the French Southern and Antarctic Lands is home to the world's biggest colony of king penguins and if satellite images are being interpreted accurately, they have seen a massive 88% reduction in the size of their colony, located on Île aux Cochons, in the Îles Crozet archipelago. If so, the causes of the colony’s collapse remain a mystery but the blame will likely fall on climate change.
Impulse control is associated with larger cognitively advanced animals like humans and other primates, but there are exceptions, like ravens. Now a recent study
shows that the great tit, a common European songbird, has a tremendous capacity for self-control - almost the same as chimpanzees.
Biologists learned this by placing food in a small translucent cylinder. The great tits that started pecking at the cylinder to get to the food failed the test as the behavior was considered an impulsive act. Those that, on the other hand, moved to an opening in the cylinder and thereby were able to access the food without pecking at the cylinder wall passed the test.
Bt modification in maize does not affect non-target beneficial microorganisms such as endophytes, according to a new study. This debunks some of the more obscure claims made by activists opposed to genetic engineering (suicides in India being the most bizarre.
Though evidence to-date shows we are the first advanced species, at least in our cosmic neighborhood, that doesn't mean it can't happen elsewhere. It is absolutely likely, because according to one estimate
there are as many as 700 million trillion
terrestrial planets just in the observable universe.
In a tweet, the coordinator for the science blog network of the British newspaper The Guardian announced that after eight years, the blog would be closing down.
We're told over and over again just how important science journalism is, usually by science journalists. Clearly, the public disagrees, and they have disagreed for a very long time. When newspapers began shrinking their news rooms many years ago, science reporters were among the first to go.