Refractive index—the ratio of the speed of electromagnetic radiation in a medium to its speed in a vacuum—can be modulated fast enough to generate photonic time crystals (PTCs) in the near-visible part of the spectrum, ...
Optics & Photonics
Jul 7, 2023
0
1327
Workers with artificial intelligence skills are "particularly valuable," and command salaries 21% higher than average, but potentially up to 40% higher—in part because these skills can be combined with other valuable skills—according ...
Economics & Business
Oct 24, 2023
0
44
Living sharks are often portrayed as the apex predators of the marine realm. Paleontologists have been able to identify fossils of their extinct ancestors that date back hundreds of millions of years to a time known as the ...
Evolution
Sep 28, 2022
0
246
Bacteria have multiple strategies to survive antibiotics: developing genetic resistance to the drugs; delaying their growth; or hiding in protective biofilms. New results from researchers at Princeton and California State ...
Evolution
Feb 6, 2019
0
7664
(Phys.org) —Researchers at King's College London have achieved previously unseen levels of control over the travelling direction of electromagnetic waves in waveguides. Their ground-breaking results could have far-reaching ...
Optics & Photonics
Apr 19, 2013
1
0
Do you understand what your cat is saying? And does your cat understand what you are saying? The new research project "Melody in human-cat communication" at Lund University in Sweden may find the answer.
Plants & Animals
Mar 10, 2016
0
603
Scientists from the University of Kentucky and the University of Louisville have determined that an inexpensive semiconductor material can be "tweaked" to generate hydrogen from water using sunlight.
Materials Science
Aug 30, 2011
16
0
Rock art is one of the most intriguing records of the human past—it directly represents how our ancestors viewed their world. This provides a fundamentally different perspective compared to other archaeological items, such ...
Archaeology
Jan 9, 2024
0
152
A team of scientists led by researchers from the University of Leicester have discovered that the genes required for learning, memory, aggression and other complex behaviors originated around 650 million years ago.
Evolution
Jul 14, 2023
0
2433
A large volcanic outburst was discovered on Jupiter's moon Io by Jeff Morgenthaler of the Planetary Science Institute using PSI's Io Input/Output observatory (IoIO).
Planetary Sciences
Jan 3, 2023
3
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