تطوير لغة الطلاب في بيئةجاذبة ممتعة وآمنة.
Death Valley National Park in California's Mojave Desert is known for many things - Its extreme temperatures, varied altitude that ranges from 282ft. below sea level to 11,000ft. above, beautiful rugged terrain and most of all, 'rolling' or 'dancing' stones. The phenomenon whereby large boulders, some weighing as much as 500 lbs, move several hundred yards in a straight line or zigzag patterns, has confounded experts for years.
اقرأ المقالThough dinosaur finds are revealed on a fairly regular basis, very few result in as much excitement as the latest two. On Thursday, September 4th, a team of scientists led by Kenneth Lacovara, an associate professor at Philadelphia's Drexel University unveiled the Dreadnoughtus schrani, which they believe is the biggest known land animal to have ever inhabited Earth. While dinosaur fans were still digesting the facts, on September 11th, came news of the re-discovery of the Spinosaurus aegyptiacus, the only known semi-aquatic dinosaur.
اقرأ المقالOn September 18th, the residents of Scotland (16 and older) will head to the polls to say Yes or No to the question: "Should Scotland be an independent country?". The answer to this simple question will decide whether Scotland will become the world's newest independent nation or, continue its 307-year-old alliance with Britain.
اقرأ المقالSeptember 11th, (2001), or 9/11 as it is commonly called, is remembered as one of the most tragic days in modern American history. That was the day when the lives of 2, 977 innocent Americans were brutally cut short by a series of well-orchestrated terrorist attacks on US soil. Within less than two hours, life as we knew it, changed forever - not just for the people that lost a family member or friend, but for every single person across the globe. However, it is also the day when Americans came together as one nation, regardless of caste, creed or color, to stand up against unspeakable evil.
اقرأ المقالInsects like ants and termites are amongst the world's best collaborators. Unlike most humans they have figured out that by working together, they can accomplish much more than they can individually. That is what some researchers are hoping to attain with Kilobots - bite size robots capable of ant-like teamwork and intelligence.
اقرأ المقالMention Hawaii and the first thing that comes to mind are the pristine beaches. What is not as well known is that Hawaii's Big Island is also home to some of the world's most active volcanoes, including the spectacular Kilauea! While the dynamic volcano has been erupting almost nonstop since 1983, some years, the amount of magma coughed up is larger than others.
اقرأ المقالWhile achievements as the first African American major league baseball player are well documented, very few people know about Ila Borders - the first female pitcher in integrated men's professional baseball and the first woman to win a men's professional game in the independent leagues. Nor do they know about the 17 girls that have played in the 68-year history of the Little League World Series. But thanks to 13-year-old pitching phenom Mo'ne Davis, that has all changed.
اقرأ المقالScientists have long suspected that there is water trapped deep inside the Earth's interior. However, they had never been able to verify it. Hence geologists had no choice but to adopt the theory that the water in our oceans was deposited by icy comets hitting the forming planet. Now thanks to evidence uncovered by Associate Professor Steven Jacobsen of Northwestern University and seismologist Brandon Schmandt from the University of New Mexico, there is finally proof that our oceans may have emerged from a massive reserve that lies 400 miles beneath the Earth's crust.
اقرأ المقالOne of the biggest knocks against candy is that it causes cavities. Now some genius scientists from Berlin-based biotechnology firm, OrganoBalance, may have figured out a way to manufacture the sweet treats in a way that eliminates that risk almost entirely. Sounds too good to be true? Read on . . .
اقرأ المقالOn Wednesday, August 27th, over 20,000 revelers literally painted the tiny town of Bunol red, by pelting each other with thousands of pounds of tomatoes. This was of course no ordinary food fight, but the world's largest one that is staged annually on the last Wednesday of August - Welcome to Spain's messy La Tomatina festival!
اقرأ المقالOn Saturday, August 23rd, over 300 people lined up outside Smithsonian's National Zoo in Washington D.C., to participate in the first birthday celebration of one of its cutest and most precious residents - America's favorite giant panda cub, Bao Bao.
اقرأ المقالAlthough most hitchhikers are people in need of genuine assistance, passersby tend to ignore them because they are wary of giving rides to strangers. But what would they do if they came across a hitchhiking robot? Would humans be caring enough to take it to its desired destination or would they vandalize and toss the helpless machine by the wayside?
اقرأ المقالAward-winning artist and professor Sam Van Aken has managed to accomplish what very few people are able to do - combine art and science together in a project that is as visually stunning, as it is biologically amazing. He has created trees that grow not one or two, but more than 40 types of stone fruit that include numerous kinds of peaches, plums, apricots, nectarines and cherries. What's even more amazing is that many of the fruits are ancient, hard-to-find, varieties.
اقرأ المقالLet's be honest, historical statues can get a little boring. After all, how many times can one admire the intricate carving or read the plaque etched below? It is therefore no wonder that most people just whiz past them, as they go about their daily lives. But what if they had a story to tell? Would passersby spend two minutes of their precious time to listen?
اقرأ المقالTrampoline parks are sprouting up all across the world. However, they all pale in comparison to Bounce Below - the world's biggest underground trampoline park that opened in the historic slate mining town of Blaenau Ffestiniog in North Wales, on July 3rd. Nestled in a massive cavern that is located inside a 100ft deep and 60ft wide former slate mine, it provides visitors with a bouncing experience like none other.
اقرأ المقالLand animals are not the only ones being affected by the loss of habitat and climate change. The issues are taking their toll on birds too. Experts estimate that since the 1500's, over 190 bird species have become extinct. Of these, at least 12 were endemic to North America.
اقرأ المقالTornados in the Midwestern and Southern United States have always been a troubling yet fascinating phenomenon - just think of Dorothy's whirlwind adventure in the Wizard of Oz! Occurring predominantly in the area east of the Rocky Mountains dubbed 'Tornado Alley', they form during severe thunderstorms called supercells that occur when cold dry polar air comes in contact with warm moist tropical air.
اقرأ المقالEach year around this time, stargazers anxiously await nature's finest fireworks show - the Perseid meteors. The 'fireball' champions of all annual meteor showers have already been streaming through our skies at the rate of about a dozen an hour, for the last few weeks. However, things will really heat up from early August 11th to the 13th, when between ninety to a hundred meteors will come zooming across the skies, making them easy to spot, even with the naked eye.
اقرأ المقالIn 1937, America's beloved aviatrix, Amelia Mary Earhart, set out to break yet another record by embarking on a 29,000-mile flight around the globe. However, her plane disappeared over the South Pacific without a trace, giving birth to one of the biggest mysteries in the history of aviation. Seventy-seven years later, her namesake, Amelia Rose Earhart set out to attempt the same feat. Fortunately, she was successful!
اقرأ المقالMention koalas and the image that comes to mind is that of a cuddly animal snoozing, whilst clinging on to a tree trunk for dear life - and rightfully so, given that the animals sleep for up to 20 hours a day! However, while the fact that their sedentary lifestyle is caused by their unusually small brains and the limited nutritional content of the eucalyptus leaves they consume is well-known, what was never questioned was their penchant for tree trunks. Turns out that the smart koalas have figured out that staying close to trees is the best way to beat the heat, during the hot Australian summers.
اقرأ المقالThe fact that the Japanese love robots is well-known. The nation of 127 million people currently employs over a quarter million robots workers, more than any other country in the world, and the number is expected to quadruple in the next 15 years. So far, most of the robots have been built for the industrial sector and therefore bear no resemblance to humans. But if some scientists have their way, the days of androids - robots that look and act like humans, are not too far away.
اقرأ المقالWhen one thinks of 4th of July celebrations the things that come to mind are an afternoon feast of watermelon, chips and . . . lots and lots of hot dogs. The best place to eat these tasty franks? The one and only 'Nathan's Famous Fourth Of July International Hot Dog Eating Contest', where participants are handsomely rewarded for devouring as many hot dogs (buns and all) as they can, in the given time.
اقرأ المقالSoccer, or 'football' as it is referred to in most parts of the world, has been played for over 150 years. While the rules of the game have remained fairly constant since the sport was conceived, the technology on and off the field is becoming increasingly sophisticated.
اقرأ المقالMany people consider the number 13, unlucky. That is why commercial and residential buildings often don't have a designated '13th' floor. But when the day falls on a Friday, the fear factor increases substantially. The good news is that this is the only one we will encounter in 2014. The bad? For the first time in 14 years, it coincides with another bad omen - a full moon!
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