Ever feel like you need more time? That it’s just flying by you?
And, then, do you ever wish you could reverse it?
A study published in Scientific Reports by an international team of researchers has demonstrated that a time-reversal program on a quantum computer is possible.
A team from NIST and the University of Colorado Boulder have developed a novel device using gallium nitride nanopillars on silicon that significantly improves the conversion of heat into electricity. This could potentially recover large amounts of wasted heat energy, benefiting industries and power grids.
Researchers at the National Institute of Standards and Technology (NIST) have fabricated a novel device that could dramatically boost the conversion of heat into electricity. If perfected, the technology could help recoup some of the heat energy that is wasted in the U.S. at a rate of about $100 billion each year.
The emergence of AI language-modelling tools could end my endeavour as a blogger.
AutoGPT makes writing this blog by me and other contributors seem irrelevant as it does for a whole bunch of human-generated services.
The James Webb Space Telescope is so powerful that it can vividly see stars in a galaxy 17 million light-years away.
Astronomers pointed the most advanced space observatory ever built at the galaxy NGC 5,068, peering deep into its starry core. The greater goal is to better grasp how stars, like our energy-providing sun, form and evolve in galaxies. Crucially, Webb views a type of light that’s invisible to the naked eye, called infrared light. These long infrared light waves pierce through thick clouds of cosmic dust and gas, allowing us unprecedented views into galactic hearts.
“With its ability to peer through the gas and dust enshrouding newborn stars, Webb is the perfect telescope to explore the processes governing star formation,” the European Space Agency, which collaborates on the telescope with NASA and the Canadian Space Agency, wrote. Solar systems born enveloped in cosmic dust simply can’t be seen with visible light telescopes like Hubble, the space agency said.
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USC Dornsife researchers employ artificial intelligence to unveil the intricate world of DNA structure and chemistry, enabling unprecedented insights into gene regulation and disease.
An analysis reveals striking similarities between the BlackSuit and Royal ransomware strains.
Human intelligence may be just a brief phase before machines take over. That may answer where the aliens are hiding.
The quantum fluctuations that pervade empty space spontaneously give birth to pairs of particles and antiparticles. Ordinarily, these pairs annihilate so promptly that their existence is virtual. But a powerful field can pull a pair’s members apart for long enough that their existence becomes real. In 1951 Julian Schwinger calculated how strong an electric field needs to be to beget electron–positron pairs. Now Michael Wondrak and his colleagues of Radboud University in the Netherlands have proposed that particle pairs can be brought into existence by the immense gravitational tidal forces around a black hole [1].
Wondrak and his colleagues considered all the paths a pair of virtual particles could take during their brief existence. If the vacuum is stable, all pairs that are created are also destroyed. But a strong field destabilizes the vacuum, makes some paths more likely than others, and leads to a deficit of pairs that recombine. The deficit is balanced by a net outflow of real particles, which, in the case of a black hole’s gravitational field, leads to the black hole’s eventual evaporation.
The theorists’ approach is sufficiently general that it could reproduce not only Schwinger’s effect but also Stephen Hawking’s 1974 proposal that if a particle–antiparticle pair springs into virtual existence near a black hole’s event horizon, one member could fall in while the other escapes. What’s more, the researchers found that Hawking’s effect is a special case of a more general phenomenon. Pulling virtual particles into existence depends only on the stretching of spacetime wrought by a curved gravitational field and does not require an event horizon as Hawking originally suggested. One intriguing implication is that a neutron star, whose Schwarzschild radius lies beneath the stellar surface, can also beget particle pairs and decay.
