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Phys.org / Physicists and philosophers have long struggled to understand the nature of time: Here's why
The nature of time has plagued thinkers for as long as we've tried to understand the world we live in. Intuitively, we know what time is, but try to explain it, and we end up tying our minds in knots.
Phys.org / Physicists demonstrate the constancy of the speed of light with unprecedented accuracy
In 1887, one of the most important experiments in the history of physics took place. American scientists Michelson and Morley failed to measure the speed of Earth by comparing the speed of light in the direction of Earth's ...
Phys.org / Theia and Earth were neighbors, new research suggests
About 4.5 billion years ago, the most momentous event in the history of Earth occurred: a huge celestial body called Theia collided with the young Earth. How the collision unfolded and what exactly happened afterward has ...
Phys.org / New magnetic component discovered in the Faraday effect after nearly two centuries
Researchers at the Hebrew University of Jerusalem discovered that the magnetic component of light plays a direct role in the Faraday effect, overturning a 180-year-old assumption that only its electric field mattered.
Phys.org / What would a small black hole do to the human body? Scientist aims to answer that
Some people may worry about being bitten by a snake or spider, but have you ever considered what would happen if a small black hole tried to pass through your body?
Medical Xpress / Fluoridated water linked to better adolescent school achievement
Children exposed to recommended levels of fluoride in drinking water show modest cognitive advantages in secondary school, with no clear evidence of harm to cognitive functioning around age 60, according to researchers at ...
Phys.org / How dark energy changed cosmology forever
Let's rewind the clock back…oh, I don't know, let's say a hundred years. It was 1917, and Einstein had just developed his general theory of relativity. It was a masterpiece, giving us our modern-day view of the gravitational ...
Phys.org / Humans are evolved for nature, not cities, say anthropologists
A new paper by evolutionary anthropologists Colin Shaw (University of Zurich) and Daniel Longman (Loughborough University) argues that modern life has outpaced human evolution. The study suggests that chronic stress and many ...
Phys.org / How most of the universe's visible mass is generated: Experiments explore emergence of hadron mass
Deep in the heart of the matter, some numbers don't add up. For example, while protons and neutrons are made of quarks, nature's fundamental building blocks bound together by gluons, their masses are much larger than the ...
Phys.org / Neanderthal women and children were the victims of selective cannibalism at Goyet, study reveals
The study of an assemblage of Neanderthal human bones discovered in the Troisième caverne of Goyet (Belgium) has brought to light selective cannibalistic behavior primarily targeting female adults and children between 41,000 ...
Phys.org / Ancient Maya game board with unique mosaic design discovered in Guatemala
Centuries before Monopoly, there was Patolli, a high-stakes Mesoamerican game of strategy and luck where players wagered crops and wealth as they raced their opponents around a cross-shaped board.
Medical Xpress / Macrophage-killing bacterial toxin weakens the gut's defenses against ulcerative colitis
Ulcerative colitis (UC) is one of the most common inflammatory bowel diseases, a lifelong condition that can cause chronic inflammation and ulcers in the lining of the large intestine. This can lead to symptoms such as rectal ...
