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Quantum mechanics tells us that light can behave simultaneously as a particle or a wave. However, there has never been an experiment able to capture both natures of light at the same time; the closest we have come is seeing either wave or particle, but always at different times. Taking a radically different experimental approach, EPFL scientists have now been able to take the first ever snapshot of light behaving both as a wave and as a particle.
Light bullets are not the deadly things their names make them out to be. They are, however, decidedly weird. To make a light bullet, researchers have to make a pulse of laser light that is continuously re-focusing itself.
IQ is rising in many parts of the world. What's behind the change and does it really mean people are cleverer than their grandparents?
A bionic eye implant is now allowing a blind man to see the outlines of his wife after 10 years in darkness.
The arrival of electronic currencies could revolutionise the way Britons pay for goods and services, in much the same way as the internet shook up how we access information, the Bank of England has said.
Related: Physicists make 'weather forecasts' for economies
Japanese researchers have developed a pair of time-keeping devices that are so accurate, they'll lose one second every 16 billion years, so, more than three times the age of the Earth, and 3 billion years older than the Universe itself.
The modern schedule is infamously frantic, leaving many of us feeling constantly pressed for time. But that feeling may not have much to do with time itself, according to a new study. "Feeling pressed for time impacts how consumers spend time, and how much they are willing to pay to save it. From a consumer standpoint, feeling pressed for time can have many harmful consequences such as poorer health, trouble sleeping, and depression. By pausing to breathe or envision the source of stress in a more positive light, people can enjoy the time they actually have in a healthier and happier way,"
Related: Meditation can reduce chronic neck pain, study shows
People who have low levels of vitamin D are more likely to have diabetes, regardless of how much they weigh, according to a new study. Vitamin D helps the body absorb calcium and maintain bone and muscle health. The skin naturally produces this vitamin after exposure to sunlight. People also absorb smaller amounts of the vitamin through foods, such as milk fortified with vitamin D. More than 1 billion people worldwide are estimated to have deficient levels of vitamin D due to limited sunshine exposure.
Related: Omega-3 fatty acids, vitamin D may control brain serotonin, affecting behavior and psychiatric disorders
The activity of the Sun is an important factor in the complex interaction that controls our climate. New research now shows that the impact of the Sun is not constant over time, but has greater significance when the Earth is cooler.
A study of how climate change has affected emperor penguins over the last 30,000 years found that only three populations may have survived during the last ice age, and that the Ross Sea in Antarctica was likely the refuge for one of these populations.
The frozen remains of a baby woolly rhinoceros thought to be over 10,000 years old have been discovered in one of the coldest parts of northern Russia.
The oldest human footprints found outside Africa, dated at between 850,000 and 950,000 years old, have been discovered on the storm-lashed beach at Happisburgh in Norfolk, one of the fastest-eroding stretches of the British coast. Within a fortnight, the sea tides that had exposed the prints last May destroyed them, leaving only casts and 3D images made through photogrammetry (stitching together hundreds of photographs) as evidence that a little group from a long-extinct early human species had passed that way.
You get excited over the discovery of a vintage coat or pretty vase in a charity shop.
A 1,800-year-old tombstone was discovered at a Roman cemetery in England this week. Because of its inscription, archaeologists know who was buried in the grave: a 27-year-old woman named Bodica.
Related: Cathedral Grave May Have Belonged to a Medieval Knight
Japanese and Mongolian archaeologists said Feb. 26 that they have discovered the remains of a 13th-century military outpost established for Mongol conqueror Genghis Khan (c. 1162-1227) in southwestern Mongolia.
Related: Found Islamic Coins Hidden Inside Viking Age Shield Boss
Cambodia’s most popular tourist attraction – the complex of ancient temples that includes Angkor Wat – is suffering from a form of overexposure. At least five foreign visitors have been arrested and deported this year for taking nude photos at the sacred sites.
Revellers at solstice celebrations should be banned from getting close to Stonehenge in order to prevent "annual vandalism", a heritage group has said.
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