News in Brief
The suspected discovery of an atomic nucleus with four neutrons but no protons has physicists scratching their heads. If confirmed by further experiments, this “tetraneutron” would be the first example of an uncharged nucleus, something that many theorists say should not exist. “It would be something of a sensation,” says Peter Schuck, a nuclear theorist at the National Center for Scientific...
The lab where a company called General Fusion is trying to spark an energy revolution looks like a cross between a hardware store and a mad scientist’s lair. Bins full of electrical gadgets are piled high against the walls. Capacitors recycled from a bygone experiment are stacked up like bottles in wine racks. Ten-foot-high contraptions bristle with...
First of two (entangled) parts. Read part two.
A couple of weeks before last Halloween, physicists in the Netherlands treated the physics world with experimental proof of what Einstein called “spooky action at a distance.”
It’s not the first time experiments have...
Second of two (entangled) parts. Read part one.
Until his death in 1955, Albert Einstein hoped that someday science would do away with what he called spooky action at a distance.
His concern was quantum entanglement. Two entangled particles, even after traveling very far from...
In carefully chilled conditions, microscopic beads of oil freeze to form a panoply of shapes.
The triangles, hexagons and other structures above are oil droplets tens of micrometers across that are mixed with water and a detergent-like substance, and then slowly frozen to form hydrogen-carbon crystals. Polarized light passing through the...
Choose Your Own Adventure books are fun, but they let readers choose only one version of events at a time. Quantum mechanics, a new experiment suggests, requires that multiple adventures occur simultaneously to create a consistent account of history.
Nobel laureate Frank Wilczek at MIT and colleague Jordan Cotler, now at Stanford University, provide evidence for what they call...
50 Years Ago
‘Quarks’ may be source of quasars’ energy — The mysterious nuclear particles called “quarks,” which have not yet been detected but might nevertheless be basic building blocks of the atom’s core, could be the source of the tremendous energy generated by the...
Reviews & Previews
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Modern physicists like to compare themselves to the ancient Greeks — searchers for knowledge about...
Stephen Hawking has finally provided more information about how black holes might preserve information. Following up on an intriguing talk he gave in August, the 74-year-old physicist coauthored a paper posted January 5 to arXiv.org describing how someone outside a black hole may be able to...
News in Brief
Stephen Hawking has finally provided more information about how black holes might preserve information. Following up on a talk he gave in August (SN: 10/3/15, p. 10), the physicist coauthored a paper posted online January 5 at arXiv.org...