مستوى مبتدئ

Mention goldfish, and the image that comes to mind is that of small, colorful creatures swimming in circles in fish bowls or home aquariums. However, the one recently discovered by biologists conducting a fish survey at a South Carolina lake was no ordinary goldfish - it was a 9-pound, 15-inch-long behemoth!...

Over the years, Marvel has enthralled fans with heart-stopping tales of superheroes saving the world from devastation. However, the graphic novel unveiled on December 3, 2020, is the most exciting one yet. Entitled, The Vitals: True Nurse Stories, it depicts factual accounts from the world's real-life superheroes — nurses who risk their lives daily to save strangers from the deadly COVID-19 pandemic....

Over the years, the caretakers at the Southern Plains Wildlife Rehabilitation Center (SPWRC) in Lubbock, Texas, have sheltered hundreds of species of orphaned and injured animals, ranging from birds to reptiles. However, the hairless baby opossum, dropped off at the center in mid-October by a concerned resident, was unlike any animal they had encountered before....

With much of our world automated, many experts believe that coding should be a core part of modern education. Yet, only 20 US states offer high school students access to computer science courses, and just 8 of those make the subject accessible to kids in lower grades. However, thanks to Seattle-based Code.org's Hour of Code Challenge, learners of all ages and backgrounds can now get exposure to this all-important subject....

While Black Friday and Cyber Monday are all about finding the best deals on holiday gifts for yourself and family members, Giving Tuesday serves a more altruistic purpose. Observed annually on the Tuesday after Thanksgiving, it encourages people to help those in need by making financial donations or doing good in their local community. The “Global Day of Giving” was started in 2012 by New York City nonprofit 92nd Street Y and the United Nations Foundation....

Extreme athletes have been using wingsuits — unique jumpsuits with fabric stitched between the arms and body and between the legs — to fly untethered for many years. However, while the "birdman" or "squirrel" suits allow daredevils to soar in the skies, the pull of gravity makes it impossible to accelerate or fly higher. To push past the limitations, Austrian stuntman Peter Salzmann teamed up with German car manufacturer BMW. The result is an electrified wingsuit, which allows flyers to zoom to higher altitudes at speeds of up to 186 miles per hour!...

Gorillas, which can weigh as much as 400 pounds, are the largest of the great apes, a family of primates that include bonobos, chimpanzees, and orangutans. Despite their size, the intelligent mammals are known to be surprisingly gentle. Evidence of the animals' kind nature was recently caught on tape at a zoo in New South Wales, Australia....

While giant panda cubs are always popular, 22-year-old Mei Xiang's latest offspring, born at the Smithsonian's National Zoo on August 21, 2020, is particularly so. The daily live-stream of the adorable male cub, whose birth brought much-needed cheer during the COVID-19 pandemic, has garnered over a million virtual visitors. Hence, it is only fitting that zoo officials are asking fans to help name the precious 12-week-old....

Stars that get too close to black holes usually end up getting sucked in by the strong gravitational forces of the dense space objects, from which no light can escape. Now, for the first time, researchers have been able to observe the cosmic phenomenon — nicknamed "spaghettification" because it pulls apart a star into thin "spaghetti-like" strands — in real-time....

The residents of Florida, which is home to over one million alligators, are no strangers to the apex predators. The massive animals are frequently encountered in swimming pools, ditches, and garages. In 2019, Palm Coast resident Donna Heiss even saw a 7-foot gator peeking through her window! However, the giant reptile recently spotted in Naples, Florida, impressed even the most jaded Floridians....

Soft robots, which can move around the ocean without harming sea life, are ideal for underwater exploration. However, they are rarely deployed because they are extremely slow and have a hard time maneuvering through the water. But that may change soon thanks to an innovative, self-propelling soft robot created by researchers at the University of California, San Diego....

The presence of ice in the permanently shadowed craters around the Moon's poles has been known for some time. However, researchers had been unsure if the hydration detected on the satellite's sunlit areas was "molecular" water (H2O), or hydroxyl (OH), a molecule that's one hydrogen atom shy of becoming water. On October 26, 2020, NASA confirmed that the liquid was indeed water....

NASA's OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer) probe made history on October 20, 2020, when it landed on Bennu, a 1,640-foot (500 meters) tall asteroid that lies 200 million miles away from Earth. The brief, six-second touchdown was planned to retrieve samples of the ancient space rock's surface and bring them back to Earth for analysis....

When 22-year-old giant panda Mei Xiang gave birth to a healthy cub on August 21, 2020, Smithsonian's National Zoo officials were both excited and anxious. That's because giant panda cubs, which weigh about 100 grams — the equivalent of a stick of butter — when born, are challenging to keep alive. Unable to see, hear, or crawl, the helpless infants are completely reliant on their mothers for food and protection. As it turns out, they had little to worry about. The newborn, who celebrated his eight-week birthday on October 16, 2020, is thriving under Mei Xiang's care and showing signs of becoming a feisty toddler....

Suspended liquids and inverted floating boats may seem like something straight out of a Harry Potter novel. However, as a team of scientists at the ESPCI in Paris, France, recently demonstrated, the gravity-defying feats do not require magical spells — just the knowledge of some basic laws of physics!...

Zipping across the solar system in an electric car may seem like something straight out of a science fiction movie. However, that is exactly what Starman — a mannequin dressed in an astronaut's suit and seated inside a red Tesla Roadster — has been doing since being blasted into space aboard SpaceX's Falcon Heavy rocket on November 5, 2018....

The remains of German World War II steamer Karlsruhe, found in the seabed off the coast of Poland by Baltictech divers in late September 2020, may house more than the typical Nazi artifacts. It could contain the jewel-encrusted panels of Russia's legendary Amber Room. Often called the "Eighth Wonder of the World," the chamber was last seen in Königsberg, Germany — present-day Kaliningrad, Russia — before it vanished into thin air in 1945....

Human hair is about 50 times softer than a razor blade, which is made using heat-hardened stainless steel and often reinforced with diamond-like carbon. Yet, a few wisps of hair are powerful enough to dull a blade's sharpness within a few weeks of use. To understand how this impressive feat occurs, a team of researchers from the Massachusetts Institute of Technology (MIT) decided to take a closer look at what happens when the sharp edge of a blade slices through human hair....

A rat may seem like an unlikely candidate to receive a gold medal for bravery and devotion to duty. However, six-year-old African giant pouched rat Magawa, who was honored with British Veterinary Charity PDSA's highest animal award on September 25, 2020, is no ordinary rodent. Over the past five years, the "HeroRAT" has saved hundreds of lives by detecting 39 landmines and 28 unexploded items in Cambodia....

Faced with a declining population and shrinking workforce, Japan has been increasingly turning to robots for help. Over the years, the androids have been deployed to perform a large number of human tasks, including building products and providing care and companionship for the elderly. The latest addition to the Japanese "workforce" may be Model-T. This seven-foot-tall robot is currently undergoing trials restocking sandwiches, drinks, and ready meals on shelves at select locations of local convenience store chains Lawson and FamilyMart....

Visitors enjoying a quiet breakfast at the Singita Ebony Lodge, a luxury hotel in South Africa's Sabi Sand Game Reserve, were treated to a rare encounter with a leopard in early September 2020. The handful of guests watched in awe —and a little trepidation — as the majestic animal, who appeared to be searching for a tasty morsel, calmly explored the various areas of the restaurant. Fortunately for the humans, nothing on the "menu" seemed to catch the leopard's fancy, and it left as abruptly as it had arrived....

On September 5, 2020, almost 800,000 fans worldwide tuned into American illusionist and endurance artist David Blaine's YouTube channel to witness his first major live event since 2012. Called Ascension, the stunt involved Blaine strapping himself to 52 colorful helium balloons and soaring into the clear blue skies above Arizona's Great Basin Desert....

Andean Condors, which weigh between 20 to 30 pounds (9 to 13 kilograms) and boast a wingspan of more than 10 feet, are one of the world's heaviest and largest flying birds. Yet the majestic vultures, which spend their days circling the Andes mountains and nearby Pacific coasts of western South America in search of carcasses, manage to stay afloat for hours....

Every summer, the Israel Antiquities Authority (IAA) invites teenage volunteers to work alongside archeologists at one of several dig sites across the country. The program, designed to provide the youth with an authentic archeology experience and to help them connect with Israel's history, usually results in the discovery of ancient tools or pottery. However, two teenagers at an excavation site in Yavneh, south of Tel Aviv, struck gold — literally— when they unearthed a clay jar filled with gold coins on August 18, 2020....