Liquid crystals create easy-to-read, color-changing sensors Chameleons are famous for their color-changing abilities. Depending on their body temperature or mood, their nervous system directs skin tissue that contains nanocrystals to expand or contract, changing how the nanocrystals reflect light and turning the reptile's skin a rainbow of colors.
Two bizarre brown dwarfs found with citizen scientists' help With the help of citizen scientists, astronomers have discovered two highly unusual brown dwarfs, balls of gas that are not massive enough to power themselves the way stars do.
Arctic Ocean changes driven by sub-Arctic seas New research explores how lower-latitude oceans drive complex changes in the Arctic Ocean, pushing the region into a new reality distinct from the 20th-century norm.
How Venus flytraps snap Venus flytraps catch spiders and insects by snapping their trap leaves. This mechanism is activated when unsuspecting prey touch highly sensitive trigger hairs twice within 30 seconds. A study led by researchers at the University of Zurich has now shown that a single slow touch also triggers trap closure—probably to catch slow-moving larvae and snails.
New research shows that laser spectral linewidth is classical-physics phenomenon New ground-breaking research from the University of Surrey could change the way scientists understand and describe lasers—establishing a new relationship between classical and quantum physics.
Microscopy technique reveals nanoscale detail of coatings as they dry Dull. Slow. Unchanging. Like watching paint dry.
Focus: How to Measure Superheavy Spectra
Author(s): Dan Garisto
A proposed technique could allow researchers to measure spectra of elements above atomic number 102, despite the tiny quantities in which they are produced.
[Physics 13, 110] Published Fri Jul 10, 2020
Synopsis: Gamma Rays Provide New Quantum Gravity Constraint
Author(s): Marric Stephens
An analysis of the speed of the most energetic photons ever observed from a gamma-ray burst sets new constraints on certain theories of quantum gravity.
[Physics 13, s92] Published Thu Jul 09, 2020
Feature: Physicists Must Engage with AI Ethics, Now
Author(s): Savannah Thais
Physicists are increasingly utilizing AI and even driving its development, but we cannot divorce ourselves from the ethical implications and impacts of this technology.
[Physics 13, 107] Published Thu Jul 09, 2020
Viewpoint: Speed Limit for Cell Growth
Author(s): Stefan Klumpp
The composition of a cell’s protein-synthesis machinery is tuned to optimize the cell’s reproduction rate.
[Physics 13, 108] Published Wed Jul 08, 2020
What does gravity weigh? The surprise answer that reshapes reality We long assumed particles carrying the force of gravity couldn't have mass. That's wrong – and it may mean gravity travels at different speeds across the cosmos.
Synopsis: Follow the Crowd to Find a Smell
Author(s): Erika K. Carlson
Simulations show that by trusting their neighbors and following their own “noses,” a swarm of fictitious organisms inspired by moths can quickly find a smell’s source in turbulent air.
[Physics 13, s91] Published Tue Jul 07, 2020
Focus: A Light Squeeze
Author(s): Philip Ball
Experiments detail how mechanical stress triggers marine microbes to light up.
[Physics 13, 106] Published Mon Jul 06, 2020
Synopsis: Additional Data Confirms Particle Anomaly
Author(s): Katherine Wright
The LHCb Collaboration increases the statistical significance of a result relating to the decay rate of mesons that diverges from standard model predictions.
[Physics 13, s88] Published Thu Jul 02, 2020
Newly discovered form of carbon is more resilient than diamond A computer simulation found a pentagon-shaped carbon molecule that would be as hard as diamond and could tolerate temperatures of almost 4000°C without breaking down
The detector with a billion sensors that may finally snare dark matter Dark matter must exist, but has evaded all attempts to find it. Now comes our boldest plan yet – sensing its minuscule gravitational force as it brushes past us
Soap bubbles can split light into otherworldly branching streams When a laser beam shines through a membrane made of simple household soap, it branches in a strange and unexpected way that could help us understand the cosmos
Why neutrinos are the strangest particles in the Standard Model We still don’t know what the mass of a neutrino is, which means there is still lots of exciting work to do, says Chanda Prescod-Weinstein
China's quantum satellite helps send secure messages over 1200km Quantum communication using entangled particles is essentially unhackable, and now it has been extended to the longest distance ever, about 1200 kilometres
Exotic fifth state of matter made on the International Space Station An instrument on board the International Space Station contains one of the coldest places in the universe, and researchers have used it to create a cloud of frozen atoms
Physicists beat Lorentz reciprocity for microwave transmission New device could boost telecommunications and be adapted for photonics
Japan’s SuperKEKB set for first particle collisions Revamped accelerator will soon be smashing electrons and positrons together
Wood-based 'supermaterial' is stronger and tougher than steel New material is made by compressing treated wood
Three photons bind together to make a ‘molecule’ of light Technique could be used to create quantum-information systems
Nuclear excitation by electron capture seen at long last Breakthrough could lead to new type of energy source
Pistachio trees 'talk' to their neighbours, reveals statistical physics Ising model could account for nut production of pistachio orchards
US National Science Foundation clamps down on misconduct Agency will now require every grantee organization to report cases of sexual harassment