Why is fluoride added to drinking water?
"Fluoride was found to significantly reduce tooth decay," Neil Maniar, a professor of public health practice at Northeastern University, told Live Science in an email.
The spread of breast cancer may be inherited
In a large study in Sweden, people who inherited two copies of the spread-associated variant have a 22 percent risk of developing metastasis within 15 years of their original diagnosis, the researchers found.
Could we ever retrieve memories from a dead person’s brain?
Hannah Loss is a scientific research reporter based in Boston. She got a Master’s level in journalism from NYU’s Scientific research, Health and wellness and Environmental Coverage Program. “We imbue our memories with all sorts of meaning and viewpoint in a way that is not always reflective of the event,” he said. For now, at...
Forget aesthetics, the reason to look after our skin should be health
Due to the dense thicket of blood vessels running under the surface, inflammation that starts in the skin can easily spread to the heart and the brain, increasing the risk of cardiovascular disease and dementia, for instance.
How did the ancient Egyptians celebrate the new year?
The lack of a leap year meant that, over time, Wepet Renpet "wandered across the climatic seasons,"Juan Antonio Belmonte, a researcher at the Institute of Astrophysics of the Canary Islands who has written extensively about the calendar system of ancient Egypt, told Live Science in an email.
U.S. hospitals continue to shut down labor and delivery services
It is published by the Society for Science, a nonprofit 501(c)(3) membership organization dedicated to public engagement in scientific research and education (EIN 53-0196483).
Is Google’s new Willow quantum computer really such a big deal?
Google says Willow has again widened the gap between quantum and traditional machines, as the task took 5 minutes on the chip, while the firm estimates that it would take 10 septillion years, or much more than the age of the universe squared, on a leading supercomputer.
We finally have an explanation for 2023’s record-breaking temperatures
But analysis of satellite data by Helge Goessling at the Alfred Wegener Institute in Germany and his colleagues revealed that 2023’s planetary albedo hit a record low.
Extremely rare, black ‘anti-auroras’ paint luminous ‘letter E’ above Alaska
Aurora seeker Todd Salat found the unusual aurora on Nov. 22 over an undefined location in southcentral Alaska at about 4 a.m. regional time (8 a.m. EST). The luminescent letter showed up relatively out of nowhere and lasted for a few mins while biking via several shapes, all of which consisted of unusual dark patches...
Massive, ‘potentially hazardous’ asteroid due to make closest-ever approach to Earth tonight — and you can watch it live
The gigantic space rock, which is taking a trip at about 27,500 miles per hour (44,300 kilometers per hour), will certainly get to a minimal range of 1.37 million miles (2.2 million kilometers) from Earth at 0:27 ET– its closest technique to our planet on document, according to NASA’s Jet Propulsion Research laboratory (JPL). Contact...
Re-engineering where body meets machine
As a Black woman born in West Virginia in 1922, she was a contemporary of the Hidden Figures mathematician Katherine Johnson, and like her peer, Collins contended with both racism and sexism, which impeded her efforts to participate equally in the sciences and in society.
Ancient footprints show how early human species lived side by side
Preserved in a dried-out layer of sand and silt, the team found a trackway consisting of 12 footprints (see image, above), evidently left by one individual walking in a straight line.
A new biography of Benjamin Franklin puts science at the forefront
Likewise, Franklin’s political views were dynamic — he argued forcefully that the colonies should remain loyal to Britain before embracing the calls for independence.
Analyze This: How big was the biggest T. rex?
Or the term can refer to changes that occur as some natural progression within the non-living world (such as computer chips evolving to smaller devices which operate at an ever faster speed).
Robotic pigeon reveals how birds fly without a vertical tail fin
The researchers programmed a computer to control the nine servomotors in Pigeonbot II to steer the craft using propellers on each wing, but also to automatically twist and fan the tail in response, to create the stability that would normally come from a vertical fin.
We’re starting to understand why some people regain weight they lost
That is partly because it is hard to maintain low-calorie diets for a long period of time, though that probably plays a relatively small role, says Laura Catharina Hinte at the Federal Institute of Technology Zurich in Switzerland.
The virus behind an outbreak in Brazil can spread from mother to fetus
A man diagnosed with Oropouche fever this summer still had functional virus in his semen 16 days after his symptoms started, a different group of researchers report in the December Emerging Infectious Diseases.