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Opioid levels in US wastewater spiked during the early pandemic months

Gio, 26/08/2021 - 23:47
In the early months of the covid-19 pandemic, wastewater samples from Kentucky and Tennessee had a 72 per cent increase in hydrocodone, plus spikes in antidepressants and anti-anxiety drugs

Martian cave entrances may offer a life-friendly radiation shield

Gio, 26/08/2021 - 14:18
The surface of Mars is bombarded with far more dangerous radiation than Earth, but the area just inside caves may shield from UV rays while providing just enough light for life

Henry David Thoreau

Gio, 26/08/2021 - 14:09
Henry David Thoreau was an American author and philosopher famous for his observations of the natural world and his transcendentalist beliefs

Quiz: Can you identify these UK birds from their songs?

Gio, 26/08/2021 - 14:00
Stop and listen awhile in any green space, and it probably won’t be too long before you hear birdsong. But how good are you at knowing what you’re listening to?

Covid-19 news: NHS England prepares to vaccinate children aged 12-15

Gio, 26/08/2021 - 13:23
The latest coronavirus news updated every day including coronavirus cases, the latest news, features and interviews from New Scientist and essential information about the covid-19 pandemic

Female octopuses throw things at males that are harassing them

Gio, 26/08/2021 - 12:00
An analysis of footage of octopuses off Australia throwing silt and shells suggests that they deliberately target others, and that females do most of throwing, often at males

Mysterious cosmic rays spotted coming from ordinary stellar explosions

Gio, 26/08/2021 - 10:00
High energy cosmic rays usually come from powerful supernova explosions, but a new discovery suggests they can be released by smaller nova explosions too

iPhone and Apple Watch magnets are strong enough to disrupt pacemakers

Gio, 26/08/2021 - 07:01
The magnets used in the iPhone 12 and Apple Watch 6 are strong enough to disrupt medical implants such as pacemakers if held too close to the body, according to tests done by the US Food and Drug Administration

Injected hydrogel could help regenerate damaged cartilage in joints

Mer, 25/08/2021 - 21:00
A new hydrogel that can be implanted during keyhole surgery and that provides a scaffold for cartilage cells to grow on could help improve the treatment of damaged joints

China's covid-19 lockdowns brought forward spring bloom by eight days

Mer, 25/08/2021 - 21:00
Clearer skies from restrictions on traffic during the covid-19 pandemic seem to have brought forward China’s spring by around eight days, resulting in so much vegetation growth that the country was almost a fifth "greener"

Caterpillar populations decline 50 per cent in areas with streetlights

Mer, 25/08/2021 - 21:00
At sites in the UK with streetlights, moth caterpillars decline by up to 50 per cent – and the decline is worse near LED lights compared with older, sodium lamps

Endometriosis genetic discovery may lead to new forms of treatment

Mer, 25/08/2021 - 21:00
The discovery of a gene linked to endometriosis, a painful condition that affects up to one in 10 women, has led to a drug treatment that shows promise in mice but hasn't yet been tested in people

MRI has been used to reveal epigenetic changes in brain for first time

Mer, 25/08/2021 - 20:58
A new form of magnetic resonance imaging can detect chemical labels added to DNA to control gene activity. It requires a special diet and has only been tested on piglets so far, but should work in people, too

Pterosaur had a head crest so tall it may have made it hard to fly

Mer, 25/08/2021 - 20:00
A 100-million-year-old fossil belongs to a strange pterosaur with a 50-centimetre-tall head crest that would have made it difficult for the winged reptile to fly

How to make delicious jam according to science

Mer, 25/08/2021 - 20:00
We all love home-made jam, but getting it right means grappling with the chemistry of pectin, says Sam Wong

Beyond quantum physics: The search for a more fundamental theory

Mer, 25/08/2021 - 20:00
Quantum theory can’t be the final answer and some theorists are exploring new ways to formulate physical laws – and yet there is no guarantee that any theory can completely describe the universe

Why it might be impossible to build a practical quantum computer

Mer, 25/08/2021 - 20:00
After “quantum supremacy”, the next step is scaling up and mastering the errors that dog qubits. But some researchers reckon the noise might always to be too high for useful quantum computers

Why is it so difficult to find a viable quantum theory of gravity?

Mer, 25/08/2021 - 20:00
The way we calculate the properties of subatomic particles with quantum theory goes haywire when it comes to hypothetical particles of gravity, but there may be a clever workaround

The Forgotten City review: It's fun being stuck in a Roman time-loop

Mer, 25/08/2021 - 20:00
Time-loops in video games can easily become a bit boring, but mystery adventure game The Forgotten City has found a nice way to bypass the problem, says Jacob Aron

Can quantum effects in the brain explain consciousness?

Mer, 25/08/2021 - 20:00
New research reveals hints of quantum states in tiny proteins called microtubules inside brain cells. If the results stand up, the idea that consciousness is quantum might come in from the cold