5,670 articles mezi dny 1.3.2020 a 31.3.2020
What if mysterious 'cotton candy' planets actually sport rings?
Some of the extremely low-density, 'cotton candy like' exoplanets called super-puffs may actually have rings, according to new research published in The Astronomical Journal by Carnegie's Anthony Piro and Caltech's Shreyas Vissapragada.
Whether horseradish flea beetles deter predators depends on their food plant and their life stage
Horseradish flea beetles use glucosinolates from their host plants for their own defense. They have an enzyme which converts glucosinolates into toxic mustard oils. Researchers at the Max Planck Institute for Chemical Ecology in Jena, Germany, found that while glucosinolates are present in all life stages of the beetle, the enzyme required to convert these into toxic substances is not always...
Why is an empty shampoo bottle so easy to knock over?
It becomes annoyingly easy to knock over a shampoo bottle when it's nearly empty. This is an easily observed and annoying phenomenon that, according to Lehigh University physics professor Jerome Licini, yields insights into center-of-mass and impacts. Licini, along with first-year physics major Allen Zijun Yuan, wrote a paper on the phenomenon that was recently published in The Physics Teacher.
Widely used weed killer harming biodiversity
One of the world's most widely used glyphosate-based herbicides, Roundup, can trigger loss of biodiversity, making ecosystems more vulnerable to pollution and climate change, say researchers from McGill University.
Youth exposure to tobacco outlets and cigarette smoking
A new study led by researchers at the Prevention Research Center of the Pacific Institute for Research and Evaluation explores these questions using real time data from 100 youth participants from 16-20 years old to assess the effect of exposure to tobacco outlets on same-day smoking and the number of cigarettes consumed.
NASA wants students' help designing tech for the Moon and Mars
NASA is enlisting whatever help it can get to make sure its crewed Moon and Mars missions go smoothly, and that might include help from schools. The agency is running a new round of its Moon to Mars Exploration Systems and Habitation Academic Innovation Challenge (M2M X-Hab if you want a much shorter name) that encourages university students to study and develop spacefaring tech. The challenge...
The US just reported its 2nd coronavirus death — another patient in Washington state
Washington state has confirmed 12 cases of the new coronavirus, including two deaths. Both patients who died were men with underlying health...
UBC astronomy student finds 17 new possible planets, 1 may have water
Michelle Kunimoto scours space for undiscovered planets. And she’s just uncovered 17 new possible ones, including a potentially habitable, Earth-sized...
New York state has confirmed its first coronavirus case
New York Gov. Andrew Cuomo said the patient is a woman in her late 30s who contracted the virus while traveling in...
Are grandma, grandpa sleepy during the day? They may be at risk for diabetes, cancer, more
- ScienceDaily
- 20/3/2 01:49
Older people who experience daytime sleepiness may be at risk of developing new medical conditions, including diabetes, cancer and high blood pressure.
Two thirds of UK homes 'fail on energy efficiency targets'
Evidence suggests improving housing is one of the most cost-effective ways to cut carbon emissions.
SUNDAY 1. MARCH 2020
Coronavirus: Washington state nursing home placed on lockdown
Kirkland facility reports symptoms in residents and staffPence defends Trump Jr claim Democrats want ‘millions’ to dieA nursing home in Washington state was placed on lockdown after a resident and a staff member tested positive for the coronavirus and more than 50 others showed respiratory symptoms, according to state health officials. Related: Coronavirus outbreak: US confirms cases in...
Starwatch: Regulus, the brightest star of Leo the Lion
Watch out later this week as the moon, approaching full, passes the blue-white quadruple star system in the constellation LeoThis coming weekend, keep an eye out for the moon as it passes Regulus, the brightest star in the constellation of Leo, the Lion. Regulus marks the full stop at the bottom of the backwards question mark of stars, also known as the sickle, that makes up the Lion’s head and...
AI can help find more places to store captured CO2 underground
Scientists dream of storing captured CO2 emissions underground, but it can be tricky to find pockets for storing those emissions -- Earth's seismic "hum" makes it difficult to spot the low-frequency waves that would best help map the subterranean landscape. That might not be a challenge in the future thanks to AI. MIT scientists have developed a machine learning system that uses...
Climate change: Australian summers 'twice as long as winters'
New weather data analysis says climate change has led to major increases in summer temperatures.
Coronavirus outbreak: US confirms cases in Chicago and Rhode Island
Health secretary: ‘We will see continued community spreading’Pence defends Trump Jr claim Democrats want ‘millions’ to dieUS health secretary Alex Azar has confirmed a new case of coronavirus in Chicago, as the respiratory illness spreads in the US. Related: Yes, it is worse than the flu: busting the coronavirus myths Continue...
2 US grad students who were on the Diamond Princess cruise share harrowing details and photos from their quarantine and 'zombie movie' evacuation
"I keep hearkening back to all these zombie movies that have been made over the last decade," a student said. "Nobody wants to be deemed as...
WHO director says there's a need to prepare for a 'pandemic' but global markets should 'calm down' as coronavirus wreaks havoc on the economy
"Based on the facts on the ground, containment is possible," he said. "But the window of opportunity for containing it is...
We don't have any good treatments for the novel coronavirus right now, but scientists are racing to change that
Roughly 80% of coronavirus cases are mild, but others can be a lot more serious. Here's how doctors are trying to treat...
Nike closed its worldwide headquarters in Oregon for deep-cleaning after the 1st US coronavirus death
"While we have no information indicating any exposure to Nike employees, out of an abundance of caution, we are conducting a deep cleaning of...
Northeast to ride weather roller coaster for first week of meteorological spring
Spring will feel like it is in full bloom for the first few days of March, but how long with the mild conditions last in the Northeast?With the start of March, comes the hope for a transition into milder conditions, as well as the start of meteorological spring.The first few days of March are forecast to bring a glimpse of warmer weather.The majority of the cold from the final week of February...
From Big Bang to Big Chill, physicist Brian Greene contemplates the beginning (and end) of everything
You might think it's depressing to contemplate the view that the universe is likely to end in everlasting darkness — but that's not how physicist Brian Greene rolls. "I am quite upbeat about the end of everything," he insists. Greene lays out what scientists have learned about the grand sweep of cosmic evolution, and its implications for phenomena ranging from the origin of...
Coronavirus will show us what this government is really made of | John Harris
The challenges of a potential pandemic will test Johnson’s leadership skills like nothing before it – and the early signs aren’t greatGive or take the prime minister’s recent 12-day withdrawal from public life, since his party’s victory at the election the government has largely been trading in performance, rhetoric and intrigue. Running through a great deal of what has happened has been...
'They are starting to get more and more desperate': Greta Thunberg responds to a Canadian oil company accused of creating a vulgar cartoon depicting her in a non-consensual sex act
X-Site Energy Services has denied creating the vulgar sticker that shows 17-year-old Thunberg engaged in a non-consensual sexual...