According to the National Institute of Health, when abnormal electrical activity causes the heart to beat too quickly, too slowly, or erratically, the condition is called an arrhythmia. Although most arrhythmias are harmless, some can interfere with the heart’s ability to pump blood.
At 200 times stronger than steel, graphene has been hailed as a super material of the future since its discovery in 2004. The ultrathin carbon material is an incredibly strong electrical and thermal conductor, making it a perfect ingredient to enhance semiconductor chips found in many electrical devices.
But while graphene-based research has been fast-tracked, the nanomaterial has hit roadblocks: in particular, manufacturers have not been able to create large, industrially relevant amounts of the material. New research from the laboratory of Nai-Chang Yeh, the Thomas W. Hogan Professor of Physics, is reinvigorating the graphene craze.
In two new studies, the researchers demonstrate that graphene can greatly improve electrical circuits required for wearable and flexible electronics such as smart health patches, bendable smartphones, helmets, large folding display screens, and more.
In this excerpt from “Cosmogenesis,” cosmologist Brian Thomas Swimme explains how physics can approach questions about meaning in life.
An artist’s conception of a supernova explosion. Credit: NASA’s Goddard Space Flight Center / ESA / Hubble / L. Calcada In space, things frequently go boom. And recently, on Oct. 9, astronomers observed an extraordinarily colossal boom. NASA’s Swift Observatory, which is specifically designed to spot the most powerful known explosions in the universe today — called gamma-ray bursts — detected an extremely strong such burst.
Zero-click spyware is even nastier than it sounds, according to new findings. But first…
The truth is out there.
Webb’s ability to image exoplanet atmospheres means we’re on the cusp of detecting life on distant worlds.
We have a serious e-waste problem, according to the international waste electrical and electronic equipment (WEEE) forum. This year alone, 5.3 billion mobile phones will go to landfills, the organization told the BBC on Friday.
Precious minerals left to waste
This means that a lot of the precious minerals that cannot be extracted from waste electronics, such as the copper in wire or the cobalt in rechargeable batteries, will have to be mined, a notoriously polluting activity.
From raspberry notes to rum and nail polish ones. Some call it a ‘space party,’ while others say ‘it stinks.’
Doctoral researcher in Astrobiology and professional perfumer, Marina Barcenilla, creates the scents of space based on astrochemistry and reports by astronauts.
Interesting Engineering (IE) report on the range of smells available including which represent the entire journey around Earth’s orbit to the center of the Milky Way. By tapping into the intimate relationship between olfaction (the sense of smell) and memory, the project aims to break communication barriers between science and the public.
Angel_nt/ iStock.
Researchers can also make assumptions about how things might smell in space using various chemicals and elements found on Earth as well as elsewhere in the galaxy.
If (or when) human exploration of our planetary neighbours goes ahead, this is a question that future colonists would have to tackle.
What do you need to make your garden grow? As well as plenty of sunshine alternating with gentle showers of rain — and busy bees and butterflies to pollinate the plants — you need good, rich soil to provide essential minerals. But imagine you had no rich soil, or showers of rain, or bees and butterflies. And the sunshine was either too harsh and direct or absent — causing freezing temperatures.
4FR / iStock.
The researchers behind the study cultivated the fast-growing plant Arabidopsis thaliana in samples of lunar regolith (soil) brought back from three different places on the Moon by the Apollo astronauts.
These findings indicate that liver cell repair and tissue regeneration are occurring.
The liver is known for its ability to regenerate. It can completely regrow itself even after two-thirds of its mass has been surgically removed. But damage from medications, alcohol abuse or obesity can eventually cause the liver to fail. Currently, the only effective treatment for end-stage liver disease is transplantation.
However, there is a dearth of organs available for transplantation.
Liver — Organ/iStock.
But what if, instead of liver transplantation, there were a drug that could help the liver regenerate itself?
