Life on Earth has dramatically changed the chemistry of the planet. Astronomers will measure light that bounces off distant planets to look for similar clues that they host life.
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Researchers have long suspected that an ingredient in sunscreen called oxybenzone was harming corals, but no one knew how. A new study shows how corals turn oxybenzone into a sunlight-activated toxin.
The fastest things ever made by humans are spacecraft, and the fastest spacecraft reached 330,000 mph – only 0.05% the speed of light. But there are ways to go faster.
Energy isn’t really made of anything else. It’s a kind of capacity to do things
LED face masks are popular with celebrities and promise a glowing complexion. But should they come with ‘daytime use’ recommendation?
UV lights come in a variety of different wavelengths, but not all are equally effective at disinfection. Researchers tested a number of commercially available lights to find the best.
Museum lighting standards assume galleries are still using incandescent bulbs or fluorescent lights. But LEDs offer more for both audiences and conservation.
Einstein was awarded a Nobel prize for his explanation for how light can be described as being made up of individual particles of energy under certain conditions.
By measuring how and when elephant seals sleep, researchers were able to figure out how elephant seals change their risk-taking behavior as they gain weight.
The presence of water on the Earth’s surface is the result of a subtle balance between different mechanisms in the atmosphere and below the surface.
Dark skies have value. They are a profoundly wonderful yet highly threatened natural asset.
For 60 years, physicists thought they knew exactly how coherent a laser could get. Now the ultimate quantum limit to laser coherence has been found, and it’s much much bigger than anybody thought.
Duckweed is the perfect space food: small, fast-growing and nutritious. By studying how light levels changed the production of radiation-fighting antioxidants, researchers made it even better.
Twisted sound beams suggest an advanced civilisation may be able to harness immense amounts of power from a black hole.
Physicists can use bright, hot lasers to slow atoms down so much that they measure -459 degrees Fahrenheit.
To boost your immune defenses against corona and other viruses, one of the most effective things you can do is maintain your natural circadian rhythms. Here’s how to do that.
A simple chemical reaction turns the red pigment of beets into a new, nontoxic blue dye.
Moths and insects cluster around lights at night. Why?
Long before Apple vs. Microsoft or Facebook vs. Google, there was Edison vs. Westinghouse.
Light bulbs can turn electricity into light (and a bit of heat) – an expert explains how they do it.
Kontributor teratas
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Professor, Australian National University
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Professor, School of Medicine, University of Connecticut
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University Distinguished Professor of Astronomy, University of Arizona
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Chercheur au Laboratoire de Physique des Lasers, Atomes et Molécules, Université de Lille
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Associate Professor of Biological Sciences, Florida International University
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Professeur Titulaire. École d'optométrie. Expertise en santé oculaire et usage des lentilles cornéennes spécialisées, Université de Montréal
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Associate Professor, Philosophy of Science, The University of Melbourne
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Associate Professor in Biophysics, University of Pretoria
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Professeur au Laboratoire de Physique des Lasers Atomes et Molécules (PHLAM), CNRS UMR8523, IRCICA, Université de Lille
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Professor of Optics, University of Ferrara
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Director, Centre for Quantum Dynamics, Griffith University
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Professor in High Medieval History, Durham University
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Associate Professor in Experimental Psychology (Perception), University of Oxford
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Professor of Applied Biochemistry, University of Nottingham
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Professor of Natural Philosophy in the Department of Physics, University of York
