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Phys.org / Floating magnetic microrobots for fiber functionalization
Minimally invasive surgery is increasingly used to target small lesions and a growing demand exists for miniaturized medical tools. These include microcatheters, articulated micro-forceps or tweezers to sense and actuate ...
Phys.org / Startled fish escape using several distinct neuronal circuits
A fast knee-jerk "ballistic" escape response and a more considered "delayed" escape response are mediated by distinct and parallel neuronal pathways in zebrafish, according to a study published October 15 in the open-access ...
Phys.org / Stretched photons recover lost interference
The smallest pieces of nature—individual particles like electrons, for instance—are pretty much interchangeable. An electron is an electron is an electron, regardless of whether it's stuck in a lab on Earth, bound to ...
Phys.org / Last year's extreme snowfall wiped out breeding of Arctic animals and plants
In 2018, vast amounts of snow were spread across most of the Arctic region and did not melt fully until late summer, if at all. Publishing on October 15 in the open-access journal PLOS Biology, researchers documented the ...
Phys.org / Piranha fish swap old teeth for new simultaneously
Piranha fish have a powerful bite. Their teeth help them shred through the flesh of their prey or even scrape plants off rocks to supplement their diet.
Phys.org / New understanding of the evolution of cosmic electromagnetic fields
Next year is the 200 year anniversary of the discovery of electromagnetism by the Danish physicist H.C. Ørsted. Even 200 years after its discovery, the existence of electromagnetism still brings up new puzzles pertaining ...
Phys.org / From ribbon to scroll: Gaining shape control by electrostatics
Northwestern Engineering materials science researchers have uncovered new insights into how electrostatic interactions can be regulated to attain and control scroll-like cochleate structures, which could inform how to capture ...
Phys.org / Analysis of Galileo's Jupiter entry probe reveals gaps in heat shield modeling
The entry probe of the Galileo mission to Jupiter entered the planet's atmosphere in 1995 in fiery fashion. As the probe descended from Mach 50 to Mach 1 and generated enough heat to cause plasma reactions on its surface, ...
Phys.org / How status sticks to genes
Those at the bottom of the social ladder are known to live shorter and sicker lives than those at the top. And the stress of life at the bottom may have long-term health effects that even upward mobility can't undo, according ...
Phys.org / The lunar cycle drives the nightjar's migration
GPS tracking data reveals that the foraging activity of the European nightjar more than doubles during moon-lit nights, and the birds then migrate simultaneously about 10 days after the full moon, according to a study published ...
Phys.org / Study 'cures' oldest case of deafness in human evolution
An international team of researchers including faculty at Binghamton University, State University of New York, has published a new study examining a 430,000-year-old cranium of a human ancestor that was previously described ...
Phys.org / Tiny droplets allow bacteria to survive daytime dryness on leaves
Microscopic droplets on the surface of leaves give refuge to bacteria that otherwise may not survive during the dry daytime, according to a new study published today in eLife.