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145,858 articles from ScienceDaily

A new way to generate electricity from waste heat: Using an antiferromagnet for solid devices

Researchers have discovered a giant thermoelectric effect in an antiferromagnet. The study shows, surprisingly, that antiferromagnets can have the same value of the anomalous Nernst effect as conventional ferromagnets, but without any stray magnetic fields that would otherwise affect surrounding devices. The newly discovered recipe for generating large Nernst voltages opens a new research...

New ultrahard diamond glass synthesized

An international research team that synthesized a new ultrahard form of carbon glass with a wealth of potential practical applications for devices and electronics. It is the hardest known glass with the highest thermal conductivity among all glass materials.

Hubble witnesses shock wave of colliding gases in Running Man Nebula

Mounded, luminous clouds of gas and dust glow in this Hubble image of a Herbig-Haro object known as HH 45. Herbig-Haro objects are a rarely seen type of nebula that occurs when hot gas ejected by a newborn star collides with the gas and dust around it at hundreds of miles per second, creating bright shock waves. In this image, blue indicates ionized oxygen (O II) and purple shows ionized magnesium...

Collapse of ancient Liangzhu culture caused by climate change

Referred to as 'China's Venice of the Stone Age', the Liangzhu excavation site in eastern China is considered one of the most significant testimonies of early Chinese advanced civilization. More than 5000 years ago, the city already had an elaborate water management system. Until now, it has been controversial what led to the sudden collapse. Massive flooding triggered by anomalously intense...

How eating less in early life could help with reproduction later on

New research shows how switching from a restricted diet to eating as much as you like could be beneficial for reproduction in later life. Researchers studied the eating and mating habits of the small fruit fly Drosophila melanogaster. They found that those that switched from a restricted diet to unlimited food, started mating and reproducing more.


TUESDAY 23. NOVEMBER 2021


Ultrashort-pulse lasers kill bacterial superbugs, spores

Researchers at Washington University School of Medicine in St. Louis have found that multidrug-resistant bacteria and bacterial spores can be killed by ultrashort-pulse lasers. The findings could lead to new ways to sterilize wounds and blood products without damaging human cells.

How moles change into melanoma

Melanoma researchers published a study that gives a new explanation of what causes moles to change into melanoma. These findings pave the way for more research into how to reduce the risk of melanoma, delay development, and detect melanoma early.

Microbes can provide sustainable hydrocarbons for the petrochemical industry

The petrochemical industry turns oil and gas into precursors used to synthesize lubricants and other critical products. Chemists show that bacteria can be metabolically engineered to generate similar precursors, providing a sustainable replacement for fossil fuels and using less energy. The microbes need only glucose. The medium-chain hydrocarbons they produce can be broken down into shorter...

Can we perceive gender from children's voices?

Researchers report developing a database of speech samples from children ages 5 to 18 to explore two questions: What types of changes occur in children's voices as they become adults, and how do listeners adjust to the enormous variability in acoustic patterns across speakers? When they presented listeners with both syllables and sentences from different speakers, gender identification improved...

Ancient human relative, Australopithecus sediba, 'walked like a human, but climbed like an ape'

The recovery of new lumbar vertebrae from the lower back of a single individual of the human relative, Australopithecus sediba, and portions of other vertebrae of the same female from Malapa, South Africa, together with previously discovered vertebrae, form one of the most complete lower backs ever discovered in the early hominid record and give insight into how this ancient human relative walked...


MONDAY 22. NOVEMBER 2021


Taking it easy as you get older? Wrong

A team of evolutionary biologists and biomedical researchers lay out evolutionary and biomedical evidence showing that humans, who evolved to live many decades after they stopped reproducing, also evolved to be relatively active in their later years. The researchers say that physical activity later in life shifts energy away from processes that can compromise health and toward mechanisms in the...