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Two different accelerators have found evidence for a particle that appears to contains four quarks, according to papers published in Physical Review Letters. Although particles with two and three quarks are common, this would be the first time that something containing four quarks has been spotted. Depending on the precise nature of the interactions among the quarks, this could be a discovery that keeps the theoreticians very busy.
Intestinal parasites have been found lurking in ancient poop in the toilet of a medieval castle in western Cyprus, scientists report.
The findings paint a less than pretty picture of the health and hygiene of crusaders stationed on the Mediterranean island 800 years ago. Poor sanitation likely meant that food and water supplies were contaminated by fecal material, allowing parasitic infections to spread, the study suggests.
The city that never sleeps wants to make sure your phone never dies. New York City is installing solar-powered Street Charge stations in a variety of parks and other locations in the coming weeks. |  |
Across Japan, technology companies and private investors are racing to install devices that until recently they had little interest in: solar panels. Massive solar parks are popping up as part of a rapid build-up that one developer likened to an "explosion." |  |
High levels of a toxic radioactive isotope have been found in groundwater at Japan's Fukushima nuclear plant, its operator says. |  |
Attention Los Angeles shoppers: The plastic bag is disappearing from more than just the supermarket.
L.A. on Tuesday became the newest and by far the largest city to back a ban on plastic grocery bags, approving an ordinance that applies not just to food stores and mini marts but also big retail chains with their own line of groceries, such as Target and Wal-Mart.
House Republican leaders want to push for outposts on the moon and Mars — and they want to push NASA's plan to snare an asteroid into the dustbin, according to a discussion draft of their space spending plan.
"It is the policy of the United States that the development of capabilities and technologies necessary for human missions to lunar orbit, the surface of the moon, the surface of Mars, and beyond shall be the goals of the administration's human space flight program," the GOP version of the NASA authorization bill states.
In some ways, the human brain isn't much different from a computer. Both use electricity to process information, relay commands, and execute actions. At the Global Future 2045 conference in New York City this past weekend, several speakers explained how scientists are exploiting those electrical connections to blur the line between man and machine—and the accomplishments so far are incredible. |  |
Although people can't directly experience the consciousness of another, they take for granted that other people have minds — that others can think, remember, experience pleasure and feel pain. |  |
It’s easy to see that our feelings change our facial expressions. But can your facial expression change how you feel? Previous studies have suggested that this is the case, and that getting botox might actually make you happier because your resting facial expression is more pleasant. This study explores whether the frown-like face you make in bright sunlight can make you more aggressive. Turns out, it does–but fortunately, this effect can be prevented by wearing sunglasses.
Sun-induced frowning fosters aggressive feelings.
Researchers working to design new materials that are durable, lightweight and environmentally sustainable are increasingly looking to natural composites, such as bone, for inspiration: Bone is strong and tough because its two constituent materials, soft collagen protein and stiff hydroxyapatite mineral, are arranged in complex hierarchical patterns that change at every scale of the composite, from the micro up to the macro.
A mechanism that cells use to group together and move around the body – called 'chase and run' - has been described for the first time by scientists at UCL. |  |
New research from the University of Adelaide shows that weight gain and increased head size in the first month of a baby's life is linked to a higher IQ at early school age.
The study was led by University of Adelaide Public Health researchers, who analysed data from more than 13,800 children who were born full-term.
Hens are capable of mathematical reasoning and logic, including numeracy, self-control and even basic structural engineering, following research.
Traits such as these are normally only shown in children above the age of four, but the domesticated birds have an ability to empathise, a sophisticated theory of mind and plan ahead.
An international group of prominent scientists has signed The Cambridge Declaration of Consciousness in which they are proclaiming their support for the idea that animals are conscious and aware to the degree that humans are — a list of animals that includes all mammals, birds, and even the octopus. |  |
Proposed experiments with animal-human embryos cleared the first regulatory hurdle Tuesday, reports said, as scientists seek permission for tests that could see human organs produced inside the growing body of an animal.
Researchers want to introduce a human stem cell into an animal embryo, to create a so-called "chimeric embryo", which they can implant into an animal's womb.
The hope is that this stem cell will grow into a fully-functioning human organ—a kidney or a liver, for example—as the animal matures.
The shape of a room can be modelled using echoes produced from sound, new research has found. |  |
Geologists have spotted a new subduction zone off the coast of Portugal that is slowly tugging Europe toward the New World.
If Christopher Columbus had been willing to wait just a few hundred million years, he could have simply walked to the New World.
That's because geological forces are slowly tugging Europe toward the Americas, with an estimated time of arrival of about 220 million years from now.
Two thirds of Chile's territory is facing desertification in which the bone-dry Atacama Desert grows by over a meter (3.3 feet) a day, President Sebastian Pinera warned.
The changing topography and consequences for the land "is one of the greatest threats to sustained development, and to sustainable development, and to the quality of life of millions of people around the world," Pinera said on Monday, in an address marking World Day to Combat Desertification and Drought.
Scientists have found a potential building block for life in a Martian meteorite recovered from Antarctica. |  |
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