Are the northern lights caused by "particles from the Sun"? Not exactly
What a spectacle a big aurora is, its shimmering curtains and colorful rays of light illuminating a dark sky. Many people refer to aurora as the northern lights (the aurora borealis), but there are southern lights too (the aurora australis). Either w.....»»
Researchers realize multiphoton electron emission with non-classical light
Strong field quantum optics is a rapidly emerging research topic, which merges elements of non-linear photoemission rooted in strong field physics with the well-established realm of quantum optics. While the distribution of light particles (i.e., pho.....»»
Comparative research on resilience-related policies and local practices in five cities worldwide
In the context of urban studies and urban planning, future cities' development and prosperity is highly related to their capacity to adapt and recover from shocks and changes caused by diverse types of hazards. Hence, resilience has emerged as a fund.....»»
Scientists demonstrate the survival of quantum coherence in a chemical reaction involving ultracold molecules
If you zoom in on a chemical reaction to the quantum level, you'll notice that particles behave like waves that can ripple and collide. Scientists have long sought to understand quantum coherence, the ability of particles to maintain phase relationsh.....»»
Transformation and mechanisms of climate wet/dry change on the northern Tibetan Plateau under global warming
Historical patterns of climate change can provide ways to predict future climate change. During geological history, the earth has experienced many warm periods of different time scales, such as the mid-Holocene warm period, the medieval climate anoma.....»»
Researchers call for a new measurement of time for tunneling particles
In an amazing phenomenon of quantum physics known as tunneling, particles appear to move faster than the speed of light. However, physicists from Darmstadt believe that the time it takes for particles to tunnel has been measured incorrectly. They pro.....»»
Indonesia floods kill 67 as rescuers race to find missing
Indonesian rescuers raced Wednesday to find dozens of people still unaccounted for after heavy rains caused flash floods and washed volcanic debris into residential areas over the weekend, sweeping away houses and leaving 67 people dead......»»
Raw sewage pumped into England"s largest lake due to fault
Raw sewage was pumped into Windermere, England's largest and best-known lake, over a 10-hour period after a fault caused pumps to stop working, according to documents seen by the BBC and reported Wednesday......»»
Sun shoots out biggest solar flare in almost 2 decades, but Earth should be out of the way this time
The sun produced its biggest flare in nearly two decades Tuesday, just days after severe solar storms pummeled Earth and created dazzling northern lights in unaccustomed places......»»
Sweltering heat across Asia was 45 times more likely because of climate change, study finds
Sizzling heat across Asia and the Middle East in late April that echoed last year's destructive swelter was made 45 times more likely in some parts of the continent because of human-caused climate change, a study Tuesday found......»»
Meet the new insect killing Utah"s fir trees: Research models impact of the balsam woolly adelgid
A nonnative tree-killing insect is invading northern Utah, attacking subalpine fir and potentially triggering yet another die-off of the region's long-stressed conifer forests......»»
$460, 5,471-piece Lego Barad-dûr set comes for LOTR fans’ wallets in June
Fiery eye actually lights up, and multiple towers can be stacked. Lego Barad-dúr silently surveils a living room. [credit:.....»»
2023 temperatures were warmest we’ve seen for at least 2,000 years
Northern Hemisphere temperatures well beyond natural variability seen in tree rings. Enlarge / Top: a look through the past 2,000 years of summertime temperatures, showing that 2023 is considerably warmer than anything earlier......»»
2023 was the hottest summer in 2,000 years, study finds
Researchers have found that 2023 was the hottest summer in the Northern Hemisphere in the past 2,000 years, almost 4°C warmer than the coldest summer during the same period......»»
Why are auroras so hard to predict? And when can we expect more?
On Saturday evening before Mother's Day, Australians witnessed a rare celestial spectacle: a breathtaking display of aurora australis, also known as the southern lights......»»
New optical tweezers can trap large and irregularly shaped particles
Researchers have developed new optical tweezers that can stably trap particles that are large—about 0.1 mm—and irregularly shaped. While conventional optical tweezers use highly focused laser beams to trap micro- or nano-scale rod shaped or spher.....»»
Beethoven likely didn’t die from lead poisoning, new hair analysis reveals
There was also mercury and arsenic but none of the toxins likely caused composer's death. Enlarge / Portrait of Beethoven by Joseph Karl Stieler, 1820. Toxocology analysis of the composer's locks of hair showed high levels of lea.....»»
Beethoven likely didn’t die from lead poisoning, new DNA analysis reveals
There was also mercury and arsenic but none of the toxins likely caused composer's death. Enlarge / Portrait of Beethoven by Joseph Karl Stieler, 1820. Toxocology analysis of the composer's locks of hair showed high levels of lea.....»»
Discovery of biomarkers in space—conditions on Saturn"s moon Enceladus simulated in the laboratory
In 2018, very large organic molecules were discovered in ice particles on Saturn's moon Enceladus. It is still unclear whether they indicate the existence of life or were created in some other way. A recent study could help to answer this question. I.....»»
Spectral evidence found for Dirac spinons in a kagome lattice antiferromagnet
A new study, published in a recent issue of Nature Physics, sheds light on the long-anticipated emergence of quasiparticles, akin to the famous Dirac particles obeying the relativistic Dirac equation. These quasiparticles, known as Dirac spinons, wer.....»»
Novel hybrid scheme speeds the way to simulating nuclear reactions on quantum computers
The nuclear reactions that power the stars and forge the elements emerge from the interactions of the quantum mechanical particles, protons and neutrons. Explaining these processes is one of the most challenging unsolved problems in computational phy.....»»