Astronomers Found an Enormous Object Orbiting at the Edge of Our Solar System. In Brief Astronomers have discovered a large planetary body at the edge of our solar system.
Named DeeDee (for Distant Dwarf), it may hold clues to the formation of planets in our solar system. Didn’t See You There It’s no Planet Nine, but the planetary body astronomers have found at the far edge of our solar system is a notable discovery nonetheless. They’ve named it DeeDee, for Distant Dwarf, and although it was first noticed in late 2016, little information about its physical structure was known back then. The new data reveals that DeeDee is around two-thirds the size of Ceres, the dwarf planet whose claim to fame is being our asteroid belt’s largest member. DeeDee rests approximately 92 astronomical units — that’s about 137 billion kilometers or 86 billion miles — from the Sun toward the edge of our solar system.
Seeing and Understanding More Finally noticing this distant neighbor to the mysterious Planet Nine hints at how much is still unknown right here in our own solar system. On Flipboard. A bizarre physics law is making superfluid helium behave like an actual black hole. Of all the laws of physics, this is arguably one of the strangest - scientists have discovered that the forces controlling the behaviour of a black hole's event horizon are also at play in superfluid helium, an extraordinary liquid that flows without friction.
This entanglement area law has now been observed at both the vast scale of black holes and the atomic scale of cold helium, and could be the key to finally establishing the long sought-after quantum theory of gravity - the solution to one of the deepest problems in theoretical physics today. The fact that an entanglement area law can apply to both black holes and helium "is weird," says one of the team, physicist Adrian Del Maestro from the University of Vermont, "and it points to a deeper understanding of reality.
" Entropy is how we describe the progression of a system from order to disorder - an untouched egg has low entropy, but a scrambled egg has high entropy. The 1931 Histomap: The entire history of the world distilled into a single map/chart. The Vault is Slate's history blog.
Like us on Facebook, follow us on Twitter @slatevault, and find us on Tumblr. Find out more about what this space is all about here. This “Histomap,” created by John B. Sparks, was first printed by Rand McNally in 1931. (The David Rumsey Map Collection hosts a fully zoomable version here.) This giant, ambitious chart fit neatly with a trend in nonfiction book publishing of the 1920s and 1930s: the “outline,” in which large subjects (the history of the world! The 5-foot-long Histomap was sold for $1 and folded into a green cover, which featured endorsements from historians and reviewers. Albert Einstein and the Fabric of Time. Albert Einstein and the Fabric of Time Surprising as it may be to most non-scientists and even to some scientists, Albert Einstein concluded in his later years that the past, present, and future all exist simultaneously.
In 1952, in his book Relativity, in discussing Minkowski's Space World interpretation of his theory of relativity, Einstein writes: Since there exists in this four dimensional structure [space-time] no longer any sections which represent "now" objectively, the concepts of happening and becoming are indeed not completely suspended, but yet complicated. It appears therefore more natural to think of physical reality as a four dimensional existence, instead of, as hitherto, the evolution of a three dimensional existence. Einstein's belief in an undivided solid reality was clear to him, so much so that he completely rejected the separation we experience as the moment of now. Most everyone knows that Einstein proved that time is relative, not absolute as Newton claimed. It's official: time crystals are a new state of matter, and now we can create them.
Earlier this year, physicists had put together a blueprint for how to make and measure time crystals - a bizarre state of matter with an atomic structure that repeats not just in space, but in time, allowing them to maintain constant oscillation without energy.
Two separate research teams managed to create what looked an awful lot like time crystals back in January, and now both experiments have successfully passed peer-review for the first time, putting the 'impossible' phenomenon squarely in the realm of reality. "We've taken these theoretical ideas that we've been poking around for the last couple of years and actually built it in the laboratory," says one of the researchers, Andrew Potter from Texas University at Austin.
Decoding Space and Time in the Brain - Scientific American Blog Network. "...henceforth, space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union between the two will preserve an independent reality.
" This now iconic quote spoken by Hermann Minkowski in 1906 captured the spirit of Albert Einstein's recently published special theory of relativity. Einstein, in a stroke of mathematical genius, had shown that both space and time as independent mathematical constructs were mere illusions in the equations of relativity, conceding instead to a 4-dimensional construct which Minkowski adroitly termed space-time.