مقالات أخبار العالم

Do you spend hours studying for a test only to draw a blank when you see the questions? It turns out you are not the only one. For though the human brain may be more powerful than a computer, recalling information is a problem experienced by even the most prepared of students. The lapse in memory can be attributed to various factors, including fatigue, distraction, and nerves....

The Rio 2016 Olympics will be remembered for many things — Katie Ledecky’s dominating performance in the 800-meter freestyle, Simone Biles’s flawless gymnastic routines, Abbey D'Agostino’s and Nikki Hamblin’s sportsmanship during the 5000-meter qualifying run, and the list goes on. However, the moments that will be forever etched on everyone’s minds will be the events that featured two of the world’s greatest athletes — Jamaican sprinter Usain Bolt and American swimmer Michael Phelps — who both declared their retirement following the Rio Games....

While your pet fish may appear to be oblivious of your presence, chances are it knows you extremely well and can probably even identify you from a crowd of humans! At least, that is the conclusion reached by scientists the University of Oxford in the U.K. and the University of Queensland in Australia, following an extensive study of the archerfish, a species of tropical fish that can be found all the way from India, to Indonesia, the Philippines, and Australia....

Remotely Operated Vehicles (ROVs), have been used to conduct undersea tasks, deemed unsafe for humans, for many years. But while they have been very successful at tackling projects like oil rig repairs, the vehicles lack the finesse and dexterity required to handle fragile missions like monitoring coral reefs. Their traditional boxy shape also makes it difficult for the robots to penetrate small areas without damaging the surrounding flora. Now thanks to Stanford University's mermaid robot, OceanOne, these shortcomings may be a thing of the past....

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....

After years of planning and months of anticipation, the 2016 Summer Games finally kicked off in Brazil on August 5. The beautiful opening ceremony, held at Rio de Janeiro’s Maracana Stadium, featured lots of great music and dancing, and even a supermodel. The highlight of the evening, however, was the over 10,000 athletes from 207 countries that marched across the stadium, proud to represent their respective nations at the world’s most prestigious sporting event. Though they are all champions in their own right, here are few youngsters that are expected to leave their mark at the Games of the XXXI Olympiad....

A few weeks ago, if you saw someone wandering around your neighborhood staring at their phone, you might have assumed they were lost. Now, it would not be too much of a stretch to think that they are busy locating, capturing, battling or training fictional creatures called Pokémon Welcome to Pokémon Go, the free-to-play location-based augmented reality game that has taken the world by storm since its release on July 6. For those that are unfamiliar with the Pokémon brand and wondering what the latest hoopla is all about, here is a brief rundown....

On June 23, British voters stunned the world with their decision to leave the European Union. Almost immediately, Prime Minister David Cameron, who had lobbied hard against what has popularly become known as “Brexit,” announced his resignation, leaving officials scrambling to find a new leader....

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....

On June 23, residents of the four countries that make up the United Kingdom (UK)— England, Scotland, Northern Ireland, and Wales — went to the polls to determine if the country should leave the European Union (EU). Most experts believed that Britons would make the “sensible” decision and vote against what has popularly been dubbed “Brexit.” After all, the benefits of remaining with the world’s largest economy far outweigh the drawbacks. But the experts were wrong!...

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!...

Mention sand art and the image that comes to mind is that of an intricately carved sculpture or design sketched on a beach surface. Though impressive, they are transient masterpieces that disappear with the first large wave or splash of rain. However, 24-year-old Tim Bengel’s sand art is permanent. That’s because the German artist uses the grit to “paint” his masterpieces on canvas. While the final product is certainly stunning, what is even more so is the way it is created....

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....

On Friday, June 10, over 100,000 fans lined up along the streets of Louisville, KY and chanted “Ali Ali” as the hearse carrying legendary boxing icon Mohammad Ali’s cherry-red casket made its way to the Cave Hill National Cemetery. The 74-year-old, who had been battling Parkinson’s disease for 32 years, passed away at a hospital near Phoenix on June 3, 2016. Ali was famous not only for his athletic prowess but also for his social activism....

Being blind is tough under any circumstances. But things were even harder for Srikanth Bolla who born in a small village near Hyderabad, India, where the common belief was that kids with disabilities were “useless” and even a “sin” and therefore, better off dead. Fortunately, Srikanth’s parents loved their son and refused to give in to societal pressure. Instead, they encouraged the blind boy to dream big and reach for the stars....

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....

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....

On Thursday, June 23, residents of the United Kingdom will head to the polls to vote “yes” or “no” to a single question: "Should the United Kingdom remain a member of the European Union or leave the European Union?” Simple as it sounds, the outcome of the referendum will have a significant impact on the country’s future....

Like most street artists, Malaysian singer Jass Pangkor has good and bad days. A few weeks ago, the talented artist was experiencing a particularly depressing day because not one person had stopped to listen to his performance....

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!...

A new “Rembrandt” painting unveiled in Amsterdam in early April is making headlines around the world. However, the authentic-looking masterpiece is not the work of the 17th century Dutch artist. It is a brand new painting that uses technology to mimic Rembrandt’s technique so perfectly, that it could easily be mistaken for one created by the great artist himself....

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....