RawStory

Science

Think it’s hot now? This study says Texas could reach 125-degree temps within 30 years

FORT WORTH, Texas — Over the next 30 years, Texas and other parts of the central U.S. are at risk of being exposed to extreme heat — temperatures exceeding 125 degrees. The human body can no longer tolerate heat at these levels. A study published in 2010 estimated that a wet-bulb temperature of 95 degrees Fahrenheit at 100% humidity, or 115 degrees at 50% humidity, would be the upper limit of safety, beyond which the human body can no longer cool itself by evaporating sweat from the surface of the body to maintain a stable body core temperature. Another way to calculate how dangerous the heat ...

Study finds link between extracurricular arts activities and improved grades

A study conducted in Japan looked at how participating in music and visual arts activities after school affects students’ academic performance. The researchers found that being involved in these activities was linked to better overall academic performance. At first, participating in music activities had a negative impact on grades in the first year. However, after two years, it started having a positive effect. The study was published in the npj Science of Learning. Art education is often believed to cultivate creativity. Many see it as complementing the general education aimed at preparing in...

Every 1C of warming means 15% more extreme rain, researchers say

Global heating incrementally boosts the intensity of extreme rainfall at higher altitudes, putting two billion people living in or downstream from mountains at greater risk of floods and landslides, researchers said Wednesday.

Every degree Celsius of warming increases the density of major downpours by 15 percent at elevations above 2,000 meters, they reported in the journal Nature.

Keep reading... Show less

Euclid space mission is set for launch – here’s how it will test alternative theories of gravity

The European Space Agency’s (Esa) Euclid mission will launch into space on a Falcon9 rocket from SpaceX on July 1, or soon after. Many of us who have worked on it will be in Florida to watch the nail-biting event.

The mission is specifically designed to study the dark universe, probing both “dark matter” and “dark energy” – unknown substances thought to make up 95% of the energy density of the universe.

Keep reading... Show less

People with obsessive-compulsive disorder have an imbalance of brain chemicals – our discovery could mean a treatment breakthrough

People often jokingly say they’ve “got a bit of OCD” (obsessive-compulsive disorder) if they are overly organized or tidy. But OCD is actually a severe and disabling disorder characterized by obsessions – recurrent intrusive thoughts, impulses or images that are unwanted and anxiety provoking. This is often coupled with compulsions, which are ritualistic mental or physical actions.

Some people with OCD are engaged in rituals for much of their waking life and cannot even leave their homes. As the condition is difficult to treat, life with OCD can be extremely difficult.

Keep reading... Show less

Reckitt creates 'air sanitizing spray' effective against coronavirus

By Richa Naidu LONDON (Reuters) - Reckitt's Lysol disinfectant brand said on Tuesday that it would start selling in the U.S. an "air sanitizing spray" that kills 99.9% of airborne viruses and bacteria. The spray, which Reckitt said helps reduce the spread of airborne pathogens such as cold, Influenza and Coronavirus, has been approved by the U.S. Environmental Protection Agency. During the COVID-19 pandemic, Reckitt, Clorox and other disinfectant makers benefited from a boom in sales of surface cleaners and wipes. At the time, there were no products suited to sanitizing air, though some anxiou...

NASA to provide coverage as Dragon departs station with science

NASA is set to receive scientific research samples and hardware as a SpaceX Dragon cargo resupply spacecraft departs the International Space Station on Thursday, June 29. The agency will provide live coverage of Dragon’s undocking and departure starting at 11:45 a.m. EDT on NASA Television, the NASA app, and online. Watch here: Ground controllers at SpaceX in Hawthorne, California, will command Dragon to undock from the space-facing port of the station’s Harmony module and fire its thrusters to move a safe distance away from the station. Undock is scheduled for 12:05 p.m.

Can parents give their children too much attention?

Parents today spend more time with their children than ever before. Yet, at the same time, they worry more than previous generations about doing enough – believing a lack of engagement may harm their child’s future success and wellbeing.

This can have negative impacts. Increased social pressures on mothers to be engaged with their children, compared to fathers, is negatively affecting maternal wellbeing. The COVID-19 pandemic and home schooling intensified this.

Keep reading... Show less

We are closer than ever to being able to 3D print medicines. Here’s why that’s important

3D-printed medicine could be the future of personalized healthcare, with research now suggesting printed tablets have reached a sufficient quality to match the standards set for conventionally manufactured tablets.

Our new study, published in the International Journal of Pharmaceutics, highlights the promise 3D-printed medicines hold for patients.

Keep reading... Show less

The melting Arctic is a crime scene

The Arctic’s climate is warming at least four times faster than the global average, causing irrevocable changes to this vast landscape and precarious ecosystem – from the anticipated extinction of polar bears to the appearance of killer whales in ever-greater numbers. A new study suggests the Arctic Ocean could be ice-free in summer as soon as the 2030s – around a decade earlier than previously predicted.


Map of Arctic sea ice changes

A new Arctic sea ice map compares the 30-year average with recent ten-year averages.

British Antarctic Survey

But to properly understand the pace and force of what’s to come, we should instead focus on organisms too small to be seen with the naked eye. These single-celled microbes are both the watchkeepers and arch-agitators of the Arctic’s demise.

Scientists like me who study them have become forensic pathologists, processing crime scenes in our Arctic field sites. We don the same white anti-contamination suits, photograph each sampling site, and bag our samples for DNA analysis. In some areas, red-coloured microbes even create an effect known as “blood snow”.

In this complex criminal investigation, however, the invisible witnesses are also responsible for the damage being done. Microbes testify to the vulnerability of their Arctic habitats to the changes that humans have caused. But they also create powerful climate feedback loops that are doing ever-more damage both to the Arctic, and the planet as a whole.

Zipping headlong into icy oblivion

My first visit to the Arctic was also nearly my last. As a PhD student in my early 20s in 2006, I had set out with colleagues to sample microbes growing on a glacier in the Norwegian archipelago of Svalbard – the planet’s northernmost year-round settlement, about 760 miles from the North Pole.

Our treacherous commute took us high above the glacier, traversing an icy scree slope to approach its flank before crossing a river at the ice’s margin. It was a route we had navigated recently – yet this day I mis-stepped. Time slowed as I slid towards the stream swollen with ice melt, my axe bouncing uselessly off the glassy ice. I was zipping headlong into icy oblivion.

In that near-death calm, two things bothered me. The water would carry me deep into the glacier, so it would be decades before my remains were returned to my family. And the ear-worm of that field season meant I would die to the theme tune to Indiana Jones.

Keep reading... Show less

Is leaving dog poo in the street really so bad? The science says it’s even worse than you think

What’s that smell? Is that what you think it is? You check your shoes and, sure enough, one is adorned with a sticky, foul-smelling patty of fresh wrongness. You have stepped in a landmine of the canine variety.

We’ve all been there, and we all know footpaths, nature strips, parks, playing fields and front lawns are not good places for dog poo to sit.

Yet, our streets and parks continue to be littered with dog poo. And with the pandemic driving a surge in dog ownership, anecdotal reports suggest the dog poo problem has grown only worse in recent years.

Keep reading... Show less

What was the ‘catastrophic implosion’ of the Titan submersible? An expert explains

The four day-long search for the missing Titan submersible has come to a tragic end. Reports have confirmed the vessel was subject to a “catastrophic implosion” at some point during its voyage towards the Titanic shipwreck, which would have killed all five passengers instantly.

A debris field comprising “five different major pieces of debris” of various sections of the submersible was found on the sea floor by a remotely operated vehicle, about 500 metres away from the bow of the Titanic, officials said.

These findings are in line with previous news that an acoustic signature “consistent with an implosion” was detected by the US Navy on the same day the Titan began its descent.

Keep reading... Show less