‘One’s pigeon’ means an area of special concern, expertise or responsibility.
And for pigeons, their area of expertise is sorting.
Just as AI systems are trained from large data sets, the birds can use ‘brute force’, or repetitive trial and error – to identify and sort patterns and objects, quickly becoming highly proficient at their task.
A form of red giant known as red clumps have been founding to be “glitching” in their cores at an alarmingly high proportion.
While conducting an aerial survey of northern Guatemala, researchers detected a sprawling Maya site.
For the first time, researchers have recorded live and in atomic detail what happens to the material in an asteroid impact. The team of Falko Langenhorst from the University of Jena and Hanns-Peter Liermann from DESY simulated an asteroid impact with the mineral quartz in the lab and pursued it in slow motion in a diamond anvil cell, while monitoring it with DESY’s X-ray source PETRA III.
The observation reveals an intermediate state in quartz that solves a decades-old mystery about the formation of characteristic lamellae in material hit by an asteroid. Quartz is ubiquitous on the Earth’s surface, and is, for example, the major constituent of sand. The analysis helps to better understand traces of past impacts, and may also have significance for entirely different materials. The researchers present their findings in Nature Communications.
Asteroid impacts are catastrophic events that create huge craters and sometimes melt parts of Earth’s bedrock. “Nevertheless, craters are often difficult to detect on Earth, because erosion, weathering and plate tectonics cause them to disappear over millions of years,” Langenhorst explains.
Five hundred million years before the dawn of dinosaurs, strange animals ruled a frozen planet.
One of Stephen Hawking’s most famous ideas has been proven to be right thanks to the ripples in space-time that were caused when two black holes far away merged. Hawking got the black hole area theorem from Einstein’s theory of general relativity in 1971. It says that a black hole’s surface area can’t go down over time. The second law of thermodynamics says that the entropy, or disorder, of a closed system must always go up. This rule is important to physicists because it seems to tell time to go in a certain direction. Since a black hole’s entropy is related to its surface area, both must always go up.
According to the new study, the fact that the researchers confirmed the area law seems to show that the properties of black holes are important clues to the hidden laws that run the universe. Surprisingly, the area law seems to go against one of the famous physicist’s proven theorems, which says that black holes should evaporate over very long periods of time. This suggests that figuring out why the two theories don’t match up could lead to new physics.
“The surface area of a black hole can’t get smaller, which is similar to the second law of thermodynamics. It also has a conservation of mass, which is similar to the conservation of energy, said the lead author, an astrophysicist from the Massachusetts Institute of Technology named Maximiliano Isi. ” At first, people were like, ‘Wow, that’s a cool parallel,’ but we quickly figured out that this was very important. The amount of entropy in a black hole is equal to its size. It’s not just a funny coincidence; they show something important about the world.” The event horizon is the point beyond which nothing, not even light, can get away from a black hole’s strong gravitational pull. Hawking’s understanding of general relativity is that a black hole’s surface area goes up as its mass goes up. Since nothing that falls into a black hole can get out, its surface area can’t go down.
I will gladly pay you Tuesday for a hamburger today.
After a long day, you are finally at your favorite restaurant and you order the burger you have been dreaming of the whole time. The burger is gone within minutes, or seconds depending on your appetite. You call the waiter to send compliments to the chef for that delicious burger but are surprised to learn that your burger’s meat has been grown in a laboratory. How would you feel about eating lab-grown meat? Would you even care or does this scenario not make sense because you would have understood in the first bite that you are not eating “real meat”? What is lab-grown meat, anyway?
One of the realistic depictions of nuclear weapons ever written about in fiction many years before Manhatten project.
THE WORLD SET FREE by H.G. Wells — FULL AudioBook | Greatest Audio Books.
The World Set Free is a novel published in 1914 by H. G. Wells. The book is considered a prophetical novel foretelling the advent of nuclear weapons.
