Light broadens the scope of alkene synthesis
Chemists from the National University of Singapore (NUS) have developed a straightforward method to convert common chemicals like carboxylic acids, alcohols, and alkanes directly into valuable alkenes......»»
Graphene stacking discovery could herald new era for quantum applications
Graphene, a single layer of carbon atoms arranged in a two-dimensional honeycomb lattice, is known for its exceptional properties: incredible strength (about 200 times stronger than steel), light weight, flexibility, and excellent conduction of elect.....»»
Ultrafast electron imaging captures never-before-seen nuclear motions in hydrocarbon molecules excited by light
The interactions between light and nitroaromatic hydrocarbon molecules have important implications for chemical processes in our atmosphere that can lead to smog and pollution. However, changes in molecular geometry due to interactions with light can.....»»
Apple may finally fix the worst things about the MacBook Pro
A component road map has brought to light more details about the notch's presence in the future MacBook Pro line......»»
Meet Hyperlight, Ars Technica’s new, even brighter “Light” mode
You asked, so we built it! Like many sites, apps, and operating systems, Ars Technica has both "Light" and "Dark" visual styles. They look great! But even the "Light" mode has dar.....»»
Ten months after first tease, OpenAI launches Sora video generation publicly
It's a big launch, but AI video-synthesis competition has heated up over the past 10 months. On Monday, OpenAI released Sora Turbo, a new version of its text-to-video generation m.....»»
Observing gain-induced group delay between multiphoton pulses generated in a spontaneous down-conversion source
Spontaneous parametric down-conversion (SPDC) and spontaneous four-wave mixing are powerful nonlinear optical processes that can produce multi-photon beams of light with unique quantum properties. These processes could be leveraged to create various.....»»
Detecting problems during protein synthesis with a firefly luciferase-based reporter
A newly developed luciferase-based reporter can detect problems in protein translocation and disulfide bond formation in the endoplasmic reticulum (ER), as reported by researchers at Science Tokyo. Inspired by natural mechanisms found in bacteria, th.....»»
Gurman: Apple-designed 5G modem coming to 2025 iPhones will be worse than Qualcomm’s
Apple’s long-in-the-works project to build its own cellular modem is about to see the light of day. As multiple reports have indicated in the past, select 2025 iPhone models will carry the Apple 5G modem—but thanks to a new report, now we know it.....»»
Experiments provide evidence that interaction of light with a hydrocarbon molecule produces strained molecular rings
When molecules interact with ultraviolet (UV) light, they can change shape quickly, producing strain—stress in a molecule's chemical structure due to an increase in the molecule's internal energy. These processes typically take just tens of picosec.....»»
Discovery of key protein complex shows evolution and adaptability of photosynthetic organisms
A team of researchers has revealed the structure of a modified and evolved version of Photosystem I (PS I), a key protein complex used by plants and cyanobacteria to convert sunlight into chemical energy. This discovery sheds light on the evolution a.....»»
A new method for efficient synthesis of anti-cancer drugs
The Wadsworth–Emmons (HWE) reaction is a fundamental reaction in organic chemistry, widely used to create conjugated carbonyl compounds. Conjugated carbonyl compounds are used in many industries for synthesizing perfumes, plastics, and pharmaceutic.....»»
The Amazon rainforest as a cloud machine: How thunderstorms and plant transpiration produce condensation nuclei
The rainforest in the Amazon basin transpires vast amounts of gaseous isoprene. Until now, it was assumed that this molecule is not transported far up into the atmosphere, as it rapidly declines when exposed to light conditions. The CAFE-Brazil measu.....»»
Isotope analysis reveals mammoth as key food source for ancient Americans
Scientists have uncovered the first direct evidence that ancient Americans relied primarily on mammoth and other large animals for food. Their research sheds new light on both the rapid expansion of humans throughout the Americas and the extinction o.....»»
Webb finds new galaxies in Spiderweb protocluster field
Using the NASA/ESA/CSA James Webb Space Telescope, an international team of astronomers have found new galaxies in the Spiderweb protocluster. Their characteristics shed light on the growth of galaxies in these large cosmic cities, with the finding t.....»»
Supreme Court could narrow the scope of federal environmental reviews
In the 1993 movie "Jurassic Park," Dr. Ian Malcolm, a fictional math genius specializing in chaos theory, explains the "butterfly effect," which holds that tiny actions can lead to big outcomes. "A butterfly flaps its wings in Peking," Malcolm posits.....»»
Where to watch the 2024 Christmas Tree Lighting at Rockefeller Center
The country's most iconic Christmas tree will light up the New York City sky. Find out how to watch the 2024 Christmas Tree Lighting at Rockefeller Center......»»
New study sheds light on when to stand out or fit in
When it comes to job interviews, conventional wisdom often suggests that standing out is key to securing a position—seemingly at odds with the general human tendency to conform. A new study by SFI Complexity Postdoctoral Fellow Katrin Schmelz and h.....»»
The TCL QM8 will light up your living room and is on sale for Cyber Week
The 2024 TCL QM8 is an excellent midrange mini-LED TV with over 4,000 nits of brightness paired with impressive black levels, and all sizes are on sale during Cyber Week......»»
Enzyme study sheds light on the molecular mechanism behind "sleepiness"
Recent research has observed that chemical modifications called phosphorylation of proteins in brain neurons dynamically regulate sleep and wakefulness. But the protein kinases that suppress sleep and the dephosphorylation enzymes that control sleep.....»»
Study brings to light new picture of intimate relationships among older adults
Living apart together (LAT) is the way to go for U.K. couples over 60, according to new research by Lancaster University and University College London (UCL)......»»