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Medical Xpress / High-speed microscopy reveals electrical activity across the brain

Within the brain, neurons compute by generating electrical impulses. These signals travel throughout neurons, which are in turn connected in vast networks that control brain functions such as sensory perception, memory formation ...

6 hours ago
Tech Xplore / Helmholtz resonance powers miniature boats and ultrasonic flying robots

When air is blown across the neck of a bottle, it doesn't just produce a pleasant tone: it also demonstrates a phenomenon called Helmholtz resonance. This occurs when airflow passing across an opening causes air trapped inside ...

9 hours ago
Phys.org / Nonrepeating photonic crystal may enable more tunable, reliable semiconductor lasers

Over the past two decades, photonic-crystal surface-emitting lasers (PCSELs) have shown promise as a type of advanced semiconductor laser useful in defense- and aerospace-related applications. Typically, these devices are ...

9 hours ago
Phys.org / Four more belugas arrive at Chicago aquarium from shuttered Canadian theme park

Four more belugas have arrived at a Chicago aquarium as part of a plan to move Canada's last remaining captive whales from a shuttered theme park to aquariums in the United States and Spain.

9 hours ago
Phys.org / Black-box technologies could undermine confidence in scientific findings

Scientists are increasingly relying on powerful data sources and tools that they often cannot fully understand, inspect or verify, according to a new study.

10 hours ago
Phys.org / Scientists simulating ant swarms find a 'first mover' can set the colony in motion

In ant colonies, a single ant can be the catalyst for a wave of mob activity, launching brief bursts of coordinated movement involving hundreds or even thousands of swarming workers, according to new simulations from New ...

10 hours ago
Medical Xpress / Two devices in one: Metasurface could bring medical imaging to smaller sensors

Researchers have developed a technology for building more compact point-of-care medical imaging devices by creating a material that acts as two devices in one.

9 hours ago
Phys.org / After commercial whaling nearly erased them, blue and fin whales are slowly reclaiming the southeast Atlantic

More than 40 years after the end of commercial whaling, new research reveals a recent increase in sightings of the world's two largest whale species in the southeastern Atlantic. The findings, published in the African Journal ...

17 hours ago
Medical Xpress / FDA approves first self-balancing, personal exoskeleton

The U.S. Food and Drug Administration has cleared Eve (Wandercraft), the first self-balancing personal exoskeleton for eligible adult wheelchair users living with spinal cord injury.

7 hours ago
Phys.org / One-off campus programs fall short on preventing sexual violence, review finds

A recent National Student Safety Survey found that one in six students attending Australian universities had been sexually harassed and one in 20 had been sexually assaulted since starting university.

7 hours ago
Phys.org / Minnesota iron ore could be key to sustainable and lower cost semiconductor

For the first time, researchers at the University of Minnesota Twin Cities have demonstrated that the low-purity iron ore prevalent in Minnesota can be used to create semiconductor-quality iron sulfide, also known as "fool's ...

9 hours ago
Medical Xpress / Could saunas and ice baths affect male fertility? Here's what the evidence says

The internet's obsession with "maxxing" has turned almost every aspect of self-improvement into a trend.

8 hours ago