과학 기사

Manatees or sea cows as they are often called, are large, rotund marine animals that can weigh as much as 1,000 pounds. But despite their enormous size, the mostly herbivorous animals have no blubber to protect them from chilly winter waters. Hence, every winter, the gentle giants seek out warmer waters. For the approximately 6,000 Florida manatees that reside in the Gulf of Mexico it means heading to the balmy 72°F waters of the roughly one-acre Three Sisters Spring in Florida's Crystal River National Wildlife Refuge....

With smart technology increasingly infiltrating all aspects of our lives it was only a matter of time before someone invented 'smart' shoes - Ones that can be customized at the owner's whim. Called ‘ShiftWear,' the animated sneakers are the brainchild of a team of entrepreneurs, futurists, and engineers led by New York-based designer David Coelho....

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Two weeks ago, representatives from 196 countries arrived in Paris to resolve one of the world's most pressing problems — Climate change. On Saturday, December 12th, the group emerged victorious with the first-ever global accord in the fight against global warming — One that U.S. President Obama hailed as the "turning point for the world" and the "best chance to save the one planet we've got."...

Mention snakes and the image that comes to mind is that of a stealthily gliding reptile. Turns out that this was not always the case. Ancient snake fossils indicate that the reptiles once had legs, just like the rest of us. So why did snakes decide to shed them in favor of the slither that sends chills down our spines? That is a mystery researchers have been trying to solve for some time....

In July 2014, a helicopter pilot flying over Northern Russia's remote Yamal Peninsula came across a massive crater in the thick, permanently frozen subsurface layer of soil known as permafrost. As news of the gaping hole that measured an impressive 100-meters in diameter spread, people all over the world began wondering about its origin....

While physics, chemistry, and biology are a norm at all schools, computer science is still a nascent subject. It is estimated that just 10 percent of American schools offer computer science and only 19% of high school students graduate with the course under their belt. Seattle-based non-profit Code.org wants to change that by exposing every student in the world to this all important science that is the basis of the digital world we live in....

Rising water temperatures and the increasing levels of carbon dioxide in our oceans are killing our beautiful coral reefs at an unprecedented rate. Add the current El Nino weather pattern that is expected to prevail through winter and spring 2016 to the mix, and things look even worse. Scientists estimate that the 1988 El Nino destroyed almost 16% of the world's coral reefs and believe things could get even worse this time around....

On October 7th, residents of the Chinese cities of Jiangxi and Foshan reported a strange sight - Towering skyscrapers that appeared to be dangling from the clouds. As the video of the 'floating city' went viral, it resulted in various theories. Some speculated the residents had seen a window to a parallel universe while others believed they had just glimpsed into a secret NASA project. Then there were the skeptics that dismissed the whole thing as a hoax. While that may still be the case, some experts believe that it could also have been a rare, naturally occurring optical illusion called Fata Morgana....

Two years ago, Jeff Bezos, the founder, and CEO of retail giant Amazon Inc. announced that the company would soon be introducing Amazon Prime Air - A new 30-minute delivery service using unmanned drones. Timed to coincide with the country's biggest online shopping day - 'Cyber Monday,' the news generated a lot of excitement among consumers. Unfortunately, thanks to the U.S. Federal Aviation Authority (FAA), the service has yet to 'take off!' But Amazon has not given up....

Space travel has come a long way since Russian cosmonaut Yuri Gagarin orbited Earth in 1961. However, the one thing that has eluded scientists thus far is a rocket that can be used multiple times. Though that may not sound like a big deal, it is for companies that want to make sub-orbital travel available to everyone. That's because a large proportion of the cost goes towards building the rocket which only flies once. It is therefore no wonder that Blue Origin's successful launch and landing of the world's first reusable rocket is causing such excitement....

Most people have a love-hate relationship with gum. For delicious as it is, the sticky, tasteless waste that remains is not just annoying, especially when inadvertently stepped upon, but also, harmful to the environment. That's because the primary ingredient in most modern chewing gums is synthetic rubber which is not biodegradable. With an estimated 560,000 tons of gum being chewed each year, this adds a lot of unwanted polymer to our already overwhelmed landfills. Now thanks to Gumdrop Ltd., there may be a solution to this sticky problem....

Like most cities, the streets of Seoul in South Korea are usually bustling with activity. However, that changes in July when a short but intense monsoon season turns the vibrant city into a ghost town. This year, a team of artists tried to change that by transforming the typically gloomy and quiet streets into a beautiful explosion of color and life....

Despite technological advances in fuel and engine efficiencies, vehicles remain high on the list of polluters. In the U.S alone, carbon emissions from gas-powered cars and other vehicles account for about 27% of our total greenhouse-gas output annually. The 'World Solar Challenge' hopes to change that some day with cars fueled by the biggest, cleanest, and cheapest, source of energy - The sun!...

Deserts are by definition barren areas of land with little precipitation. But few compare to Atacama Desert. Often called the world's driest non-polar desert, the 600-mile stretch of land gets an average of just 0.13 inches of rain annually, despite its location next to our planet's largest body of water, the Pacific Ocean....

Do you get impatient and lose your temper when you've gone without nourishment for a long time? Then you are suffering from 'hanger', a newly coined term that describes the inexplicable irritation some of us experience when our stomachs are growling. Turns out there is logical scientific explanation for this often uncontrollable reaction....

Though we always hear about how polluted our oceans, lakes and seas are, it is rare to witness the contamination without at least wading into the waters. However, such is not the case for the residents that live in the vicinity of Bangalore's largest body of water - Lake Bellandur. They get to both witness and experience the toxic effects of the pollution that spews out in the form of fluffy white foam, every single day of the year!...

In early October, researchers from Utah's Brigham Young University revealed the discovery of a new species of a giant pterosaur. The massive reptile is believed to have inhabited Earth over two hundred million years ago during the Triassic Period when most of the continents were combined in the giant C-shaped supercontinent known as Pangaea....

The fact that the moon's gravitational pull affects ocean tides is well-known. However, what scientists did not know is that the Earth's gravity has a similar tug on the satellite. The only difference is that the effects are much worse since the pull results in exacerbating and changing the direction of the cracks on the lunar surface....

American Sign Language (ASL), has been one of the primary means of communication for the deaf in the United States and many parts of Canada since the 1800s. It is estimated that between 500,000 to 2 million people use the language on a regular basis....

While for humans the expression "sleep with one eye open" is just a metaphor to keep alert, for some animals it is a way of life. Called unihemispheric sleep, it is the ability to snooze with one eye open and the corresponding half of the brain awake, while the other half rests....

Looking for a spooky Halloween tale? How about this? According to NASA scientists, an asteroid measuring between 1,050 to 2,100 feet will be making its way towards Earth on October 31st. While the massive space rock that will be zooming in at a rapid 78,000 mph will not hit us, it will come startlingly close - Within 1.3 times the distance of the moon (about 310,000 miles) - The closest such encounter since 2006....

In case you missed it, Wednesday was 'Back to the Future Day.' For those not familiar with the trilogy, in Back to the Future II, the film's protagonists Marty McFly and Doctor Brown travel 30 years in the future to the fictional city of Hill Valley, CA, to save McFly's yet-to-be born children. The date of their arrival, October 21st, 2015, has since been eagerly awaited by fans all over the world....

While world population continues to increase, our freshwater supplies appear to have stagnated and in some cases even trickled to a halt. Residents all the way from California to Brazil are battling multi-year droughts. Earlier this year, some citizens of Sao Paola were so desperate that they drilled through basements and parking lots to try access groundwater. Experts estimate that there are currently a billion people in the world that lack clean drinking water....