تطوير لغة الطلاب في بيئةجاذبة ممتعة وآمنة.
Few festivals transcend across different ages and cultures as St. Patrick's Day does. Celebrated annually on March 17, the Irish holiday is filled with fun traditions that seem to appeal to people across the globe. For those wondering about the clergyman, whose death anniversary the world celebrates with such abandon, and the origin of some of the fun customs, here is a brief history.
اقرأ المقالOn Friday, March 15, 2019, hundreds of thousands of kids from over 80 countries, including the United States, Germany, and Malaysia, will skip school and take to the streets. However, the worldwide strike is not a protest against excessive homework or long school hours. It is a plea to government officials and business leaders to take immediate action against climate change.
اقرأ المقالEver since the US shuttle program ended in 2011, astronauts - both American and those from other nations - have been dependent on the Russian Soyuz spacecraft to go to and from the International Space Station (ISS). The reliance, which costs NASA $70 million for each trip, is expensive and also leaves astronauts in danger of being stranded in the event of a like the one experienced in October 2018. Now, thanks to SpaceX's successful Crew Dragon test mission, astronauts may soon have an alternate, more affordable, mode of transportation to the ISS.
اقرأ المقالA holiday associated with a math concept may not seem that exciting, especially for those not fond of the subject. However, America's Pi (“π”) Day – observed annually on March 14 (3/14) to honor the ratio of the circumference of a circle to its diameter, widely recognized as 3.14 – is an exception. That's because the celebrations don't just include fun math activities, but also a slice, or two, of yummy pie!
اقرأ المقالHere is some good news for the thousands of North Americans affected by this year's harsh winter - March 20, 2019 is the first day of spring! In anticipation of the season's start, on March 10, 2019, most residents will “spring forward” by moving their clocks an hour ahead. Though the start of Daylight Saving Time (DST) entails sacrificing sixty minutes of precious sleep or play time on Sunday, it allows for longer spring and summer days.
اقرأ المقالA walnut-sized bee with a wingspan of two and a half inches – about the length of a human thumb – may seem like something straight out of a science fiction movie. However, the Megachile pluto, or Wallace's Giant Bee, is not a figment of a movie writer's imagination, but a real insect that dwells in the Indonesian forests. While a few dead specimens of the bee have been discovered over the years, researchers have not seen a living one since 1981. Now, thanks to a team of dedicated American and Australian biologists, the magnificent bee has been photographed live in its natural habitat for the first time.
اقرأ المقالThe fact that the Earth's magnetic poles are continuously in flux has been known for over 400 years. However, scientists have usually been able to accurately predict their pace for five years. But earlier this year, when researchers at NOAA and the British Geological Survey conducted their annual check to gauge the accuracy of their forecast, they realized the north magnetic pole had moved much faster than expected. Fearing the unforeseen deviation would cause problems for military and ocean navigation, the experts updated the World Magnetic Model (WMM) on February 4, 2019, almost a year ahead of schedule.
اقرأ المقالAn elderly female, believed to have inhabited Earth approximately 3.67 million years ago, is causing a stir among paleontologists. If researchers from South Africa's University of Witwatersrand are right, the skeleton, nicknamed "Little Foot" due to its tiny ankle bones, represents a new species of an early human.
اقرأ المقالWhile any sighting of the critically-endangered leopard deserves mention, that of a black leopard is particularly newsworthy. What makes the specimen, recently captured on camera in Central Kenya by San Diego Zoo researchers and British wildlife photographer Will Burrard-Lucas, unique is that it is the first scientific documentation of such a creature in Africa in nearly a century. Prior to this, the only confirmed sighting was a 1909 photograph taken in Addis Ababa, Ethiopia.
اقرأ المقالDutch designer Daan Roosegaarde has spent much of his career seeking artistic solutions to solve our environmental woes. His past projects include "Bioluminescent Trees" to light streets, a "Smog-Free Tower" to clean Beijing's polluted air, and "Gates of Light," which uses the headlamps of passing cars to illuminate the 60 floodgates of the Afsluitdijk, a major dam and causeway in the Netherlands. Now, the creative artist is hoping to use his skills to solve a pressing global issue - space junk!
اقرأ المقالVenezuelan residents are in the midst of an unusual political crisis. Since January 23, 2019, the country has had two presidents: Nicolàs Maduro, the incumbent who was reelected in May 2018 and sworn into office on January 10, 2019, and Juan Guaidó, President of the National Assembly, an elected temporary parliament with the mandate to draft or reform the Constitution. The 35-year-old Guaidó, who leads the progressive Popular Will political party, proclaimed himself the country's interim leader on the grounds that the May 2018 elections were rigged, and hence the presidency was vacant.
اقرأ المقالAmerican sports fans are mourning the loss of one of baseball's all-time greats: Frank Robinson, Major League Baseball's first African-American manager and the only player to win MVP in both leagues, passed away at his Bel Air, California home on February 7, 2019. The 83-year-old had been battling bone cancer for many years.
اقرأ المقالValentine’s Day, the holiday of love and romance, is almost here. On February 14, children and adults alike will shower their friends and loved ones with gifts that range from cards with endearing messages to chocolates, long-stemmed red roses, and even fine jewelry. Here are some fun facts about this all-important shopping holiday which is expected to earn retailers a record $20.7 billion in 2019.
اقرأ المقالWith his intricately-patterned skin, bright orange underbelly, and bulging emerald eyes, Romeo, a male Sehuencas water frog, should have had no trouble finding a mate. The only problem? Until recently, the world’s most eligible amphibious bachelor was believed to be the last surviving member of his kind! Now, just in time for Valentine's Day, researchers may have found the perfect Juliet for this modern-day Romeo!
اقرأ المقالIce-skating phenom Alysa Liu is no stranger to shattering records. In 2016, the then 10-year-old became the youngest intermediate figure skating champion in U.S. history. In 2018, at the tender age of 12, Liu became the youngest to compete in, and win, the U.S. junior championships. That same year, she was also the youngest woman ever to land a triple axel in an international competition.
اقرأ المقالPesky as they may be, ants are truly incredible insects. The tiny creatures can survive floods by joining together to morph into living rafts, predict earthquakes, lift up to 20 times their body weight, and even select the best tool to complete a job efficiently. Now, it appears that the elusive Dracula ant (Mystrium camillae) can snap its jaws shut at a mind-boggling speed of 90 meters per second (more than 200 miles per hour) – the fastest-known animal movement on record.
اقرأ المقالOn February 5, 2019, over a billion people in China and millions around the world will celebrate the Chinese New Year, or Spring Festival. The ancient tradition, whose date is determined by the lunar calendar and falls somewhere between January 21 and February 20 each year, is the longest and most important of all Chinese festivals.
اقرأ المقالMany of us experience mood shifts during the colder, shorter, and gloomier winter days. However, for those diagnosed with seasonal affective disorder (SAD), winter blues take on a whole new meaning. While mental health professionals have attributed the symptoms of SAD, which include depression and a feeling of hopelessness, to the lack of sunlight, no one was sure how the brain made the connection. Now, some researchers have found the culprit – a brain circuit which connects special light-sensing cells in the retina with the areas of the brain that impact our moods.
اقرأ المقالIn DC Film's recent action-packed blockbuster Aquaman, the superhero flaunts many spectacular powers. While the half-human, half-Atlantean’s ability to heal others and withstand intense heat may be hard for scientists to emulate, here are three Aquaman superpowers that may be available to all of us in the very near future.
اقرأ المقالMartin Luther King Jr. (MLK), whose life and legacy is celebrated annually on the third Monday of January, was an extraordinary man. It is thanks to the vision, courage and leadership of the clergyman-turned-civil-rights-activist that all Americans are granted equal rights, regardless of race, color, religion, or national origin.
اقرأ المقالThe Moon’s near side, the one we all see, has been the target of numerous robotic and human missions. However, our lunar companion’s far side, which is not visible from Earth, has never been explored. That changed on Jan. 2, 2019, when Chinese spacecraft Chang'e 4 made a soft landing on what is often referred to as the “dark side,” because it remained largely unseen until humans were able to send spacecraft around the Moon in 1959.
اقرأ المقالNASA’s New Horizons spacecraft, launched in 2006 with a primary mission to perform the first-ever flyby of Pluto, has provided researchers with invaluable information about the dwarf planet. Now, the space probe has made more history with its January 1, 2019 flyby of distant world 2014 MU69. The close rendezvous with the icy rock, located four billion miles from Earth in the Kuiper Belt, is not only humanity’s furthest encounter with a distant object, but also the most primitive one ever visited by a spacecraft.
اقرأ المقالWhile visiting the North Pole in winter may not be at the top of your bucket list, the ever-changing ICEHOTEL, which opened its doors to visitors on December 14 this year, may change your mind. Located 200 km north of the Arctic Circle in the Swedish village of Jukkasjärvi, the hotel, which is carved entirely from ice, is rebuilt annually, with each iteration getting increasingly beautiful and impressive.
اقرأ المقالThanks to its harsh environment, Antarctica remained largely untouched by humans for many millennia, allowing a thriving ecosystem to evolve. However, since the 1990s, the last true wilderness on the planet is becoming an increasingly popular destination for adventure-seeking tourists. Now, a new study asserts that the visitors may be leaving behind harmful bacteria which could devastate the area’s native bird population.
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