과학 기사

With technology permeating every aspect of our lives, it should come as no surprise that it is playing an important role at the 2016 Rio Olympics. Wearable tech is not just helping elite athletes deliver their optimal performance at this competitive sporting event where everyone is battling for Olympic gold, but also protecting them from serious injuries....

There are few celestial events as reliable or as anticipated as the annual Perseid meteor showers. The shooting star show typically begins in mid-July and continues until the end of August. However, it is most visible around mid-August. According to astronomers, this year the best time to watch nature’s fireworks will be the evening of Thursday, Aug 11 and the early hours of Friday, Aug 12....

Always wished we had a second Moon? Then you are in luck! NASA scientists from the Planetary Defense Coordination Office (PDCO) on Mount Haleakala in Maui, Hawaii recently discovered a small asteroid that they believe has been looping Earth for at least a century. But despite its unwavering loyalty to our planet, the researchers have no intention of calling it a moon. Instead, they refer to the asteroid, which has been dubbed 2016 H03, as a “quasi-moon” or “near-earth companion.”...

The phenomenal success of Finding Dory, the much-awaited sequel to the 2003 film, Finding Nemo, is being met with mixed feelings by marine experts. That’s because though the animated movie is the perfect platform to draw attention to the precarious state of our coral reefs, it may instead result in endangering both the reef and its inhabitants further....

To state that China has traffic issues is an understatement. A 2015 study conducted by navigation system maker TomTom revealed that the country is home to five of the top twenty most traffic congested cities in the world. Though Chinese authorities have tried to control the traffic flow with tactics that range from charging road tolls to building expressways with 50 lanes, nothing appears to be working. Now, some engineers are proposing an ingenious solution to ease the country’s traffic woes — An elevated bus that glides over cars!...

Today, June 20, happens to be the first day of summer or summer “solstice.” Derived from the Latin words “sol” for “sun” and “sisto” for “stop,” it is the day when the North Pole is most inclined towards the sun. As a result, residents of the Northern Hemisphere enjoy the longest day of the year. The opposite, of course, is true for the residents of the Southern Hemisphere who will experience the shortest day of the year. What makes today’s summer solstice even more unique is that for the first time in many years, it coincides with a full moon....

A few days after a massive storm battered Australia’s East Coast, sections of the coastline experienced a rare phenomenon – An ocean so foamy that it resembled a giant bubble bath. Experts say the marshmallow-like waters are a result of powerful ocean currents whipping together salts, chemicals, dead plants, decomposed fish, and seaweed excretions....

Controlling and interacting with content on a smartphone or tablet is a relatively easy task given their large screens. However, the same is not true for smartwatches which are proving to be more of a fashion statement than a piece of useful technology. Now a group of researchers from the Human-Computer Interaction Institute’s Future Interfaces Group (HCII) at Carnegie Mellon University is trying to change that with an invention that transforms the arm into a touchpad....

Zebra crossings — the alternating dark and light stripes on the road surface — are meant to alert drivers that pedestrians may be trying to get across. Unfortunately, they are not very effective. A 1998 study done by the Department of Traffic Planning and Engineering at Sweden’s Lund University, revealed that three out of four drivers maintained the same speed or even accelerated as they were approaching a crossing. Even worse? Only 5% stopped even when they saw someone trying to get across. Now a mother-daughter team in Ahmedabad, India have devised a clever way to get drivers to pay more attention — A zebra crossing with an optical illusion....

On May 9, Japanese online retailer Rakuten announced the nation’s first drone delivery service at Tokyo’s Camel Golf Resort. Called Tenku, the autonomous vehicle, which has the capacity to carry up to 2kg can be summoned by golfers to bring snacks, drinks, and even equipment like balls, while enjoying a round of golf....

Laughter, be it a loud guffaw or a well-mannered giggle, is a universal way to express joy. But as it turns out, your chuckle reveals a lot more than the fact that you are happy. It enables listeners, even those that cannot observe you, instantly realize if you are having a good time with a close friend or laughing politely with a complete stranger....

Though the detrimental impact of plastic waste on the environment is well-known, consumption of drinks bottled in polyethylene terephthalate (PET) —the most commonly used polymer — continues to rise at alarming levels. According to experts, over 22,000 plastic bottles are discarded every second, and the numbers are only growing. While a fraction of them do get recycled, most end up in the ocean, where they disintegrate into smaller pieces and are often mistaken for food by innocent fish and birds....

Most airlines go all out to ensure their passengers have the best possible flight experience. Now, Europe’s low-budget airline EasyJet, wants to extend the positive experience beyond the plane ride with “Sneakairs” — Smart shoes that allow visitors to explore new cities and towns without ever looking at a map....

Hundreds of thousands of hearing-impaired people in the United States and many parts of Canada rely solely on American Sign Language (ASL) for communication. But popular as the language is, there are millions of people with normal hearing that are unable to decipher the hand and finger gestures. That may change soon thanks to the ingenious “SignAloud” glove that converts sign language into speech....

Twenty-four-year-old Ohio resident Ian Burkhart had lost all hope of being able to move his limbs again after a tragic diving accident left him paralyzed, six years ago. But on April 13, doctors from The Ohio State University and Battelle Memorial Institute reported that for the first time in medical history, they had been able to restore movement to the young man’s fingers without the use of external prosthetics. This means that Ian can now perform tasks like brushing his teeth, pouring water into a glass, and even playing Guitar Hero by just thinking about them. Though these may seem like small feats, they are tremendous achievements for someone whose body has been totally lifeless for many years....

In 2014, marine biologist and National Geographic Emerging Explorer David Gruber was on a nighttime dive to observe biofluorescent corals when he noticed a bright green eel darting across. This was the first time biofluorescence had been witnessed in a vertebrate. Curious to see if there were more such creatures just waiting to be discovered, Gruber and his team began combing through coral reefs around the world. Sure enough, they found that 180 species of animals, including bony fishes, reptiles, and even the hawksbill sea turtle, have the capability to “glow”, in the deep dark ocean waters....

Are we the only intelligent beings in the Universe or are there several other perhaps even smarter civilizations just waiting to be discovered? That is the million dollar question scientists have been trying to answer for over 50 years. Now Russian billionaire Yuri Milner wants to solve the mystery once and for all, by reaching for the stars . . . Literally!...

In January and February of 2016, a total of 13 young sperm whales washed up on the beach near the town of Tönning in Schleswig-Holstein, Germany. An autopsy revealed that the whales had all died of heart failure. The researchers believe that the young bulls, all between 10-15 years old, may have entered the North Sea by mistake. Since the sea floor here is too shallow for these deep sea dwellers, it caused the whales to become disoriented and perish....

Mention the word "coding" and the first image that comes to mind is a complicated algorithm that has no relationship to the real world. It is, therefore, no wonder that most kids steer away from learning this skill that is becoming increasingly important in today's world. Now, thanks to a small robot created by researchers at Harvard's Wyss Institute even kids as young as five, will be clamoring to program....

Wood has many great properties that make it the perfect building material — It is cheap, durable, easily available, and most importantly, renewable. The one thing it is not, is transparent! Now thanks to a team of scientists at Stockholm's KTH Royal Institute of Technology the versatile material may even be able to add that attribute to its already impressive list....

Animal videos are always heartwarming. However, the one that captured Tuffy, a black bear splashing in a pool, is even more so. That's because it shows the animal's unbridled joy after being rescued from a bear bile farm, where he was locked in a tiny cage and tortured for years. In fact, Tuffy was so thrilled with his newly found freedom that he did not return to his den that evening — Instead, the bear spent the night sleeping under the stars....

Japan is famous for its state-of-the-art high-speed railway system. In 2015, its Magnetic Levitation or, Maglev train, which gets its name because it hovers 10 cm above the tracks, set a new speed world record of 375 mph (603km/hr). Now the innovative island nation wants to build a train that features a mirror-like exterior and blends in so well with the environment, that it will be practically "invisible."...

On Friday, April 22, billions of people across the globe will celebrate Earth Day. They will commemorate the event by staging rallies, participating in environmental clean-up activities, and pledging to undertake "green" initiatives to protect this precious planet. While that is certainly helpful, it would be even better if we could incorporate "greener" habits into our daily lives. These stunning images taken from space by NASA will serve as a reminder of why making every day "Earth Day" is so important....

In May 2011, Joao Pereira de Souza stumbled upon a stranded Magellanic penguin outside his shack on Proveta Beach in Ilha Grande, Rio de Janeiro. The bird was soaked in oil and unable to move. The 71-year-old retired bricklayer scooped up the starving penguin, nursed it back to health and put it out to sea....