مقالات بها 200-400 كلمة

There are over 30 meteor showers annually. But few can compare to the spectacular Perseids. The "shooting stars" have been blazing through the sky at a rate of about a dozen an hour since mid-July and will continue until the end of August. But the best time to view them is when Earth passes through the area with the densest comet dust. That's when the meteors' pace increases to between 50 and 100 an hour. This year that will be during the pre-dawn hours of August 13....

It is no secret that play-based learning improves the cognitive, physical, social, and emotional well-being of children. Researchers now believe that certain board games, like Chutes and Ladders and Monopoly, can also help enhance their math skills....

In most countries, a person's age is determined by subtracting the date of birth from the given date. However, in South Korea, an individual's age can be calculated in three different ways. A new law that took effect on June 26, 2023, aims to simplify the confusing system....

In what can only be described as a miracle, four children from an indigenous community in Colombia were rescued after being stranded in the Amazon rainforest for 40 days. On May 1, 2023, 13-year-old Lesly, nine-year-old Soleiny, four-year-old Tien Norie and 11-month old Cristin, were flying with their mother to the town of San José del Guaviare. Midway through the journey, their small airplane suffered an engine failure and crashed in a remote part of the Colombian Amazon jungle....

Visitors to the San Francisco Conservatory of Flowers are about to witness the rare blooming of a titan arum, or corpse flower. The massive flower blossoms once every four to five years and lasts only 24 to 48 hours. But that may be a good thing. That's because when the petals unfurl, they emit an odor reminiscent of rotting meat....

When a large star dies, it explodes into a brilliant burst of light that temporarily illuminates the night skies. The phenomenon, known as a supernova, often lasts for weeks. However, it is usually only visible to scientists with access to powerful telescopes. But the SN 2023ixf — one of the largest and brightest supernovas in over a decade — can be seen by all!...

Fish farming is a form of aquaculture in which fish are raised in enclosures to be sold as food. They account for over half of the world's fish supply and are vital for meeting the needs of an ever-growing human population. However, fish farms currently face a big challenge — waste management....

On Wednesday, June 21, 2023, Northern Hemisphere residents will celebrate the astronomical start of summer. Also known as the June solstice, it is the day when the North Pole is most inclined toward the Sun. This means those in the Northern Hemisphere will enjoy the longest day of 2023. Conversely, residents of the Southern Hemisphere will mark the first day of winter with the shortest day of the year....

Exposure to microgravity can wreak havoc on the human body. Hence, before astronauts can embark on the long trip to the Moon or Mars, scientists need to find ways to mitigate the physical impacts of space travel....

An Austrian Academy of Sciences researcher has uncovered one of the earliest-known translations of the Gospel of Matthew using ultraviolet light (UV). Dr. Grigory Kessel made the discovery while studying an ancient manuscript that has been at the Vatican Library since the mid-20th century....

Juneteenth is a blend of the words June and nineteenth. The holiday commemorates the end of slavery in the United States. On this day in 1865, America's last enslaved people — a group in Texas — learned they were free....

A lone wolverine traversing across Northern California is sending ripples of excitement across the Golden State. It is only the second sighting of the mammal in the state in almost a century. The wolverine has been captured on camera multiple times in different areas of the eastern Sierra Nevada mountain range since May 2023....

On May 20, 2023, The Lego Group successfully launched 1,000 minifigures into space. The tiny astronauts made the journey aboard roofless 3D-printed space shuttles. The lightweight vehicles were built by a team of space architects and engineers from Slovakia and the Czech Republic. The purpose of the mission was to encourage kids to follow their dreams....

Parrots are highly social creatures. They need the companionship of other birds for their well-being. This is easy enough in the wild, where they live in large flocks. However, the parrots that live in captivity as pets are often bored and isolated. But a new study has found that modern technology may help alleviate the birds' loneliness....

Americans will celebrate Memorial Day on May 29, 2023. The federal holiday is observed annually on the last Monday in May. It honors all military personnel who died while serving in the United States Armed Forces. This includes the men and women in the Air Force, Army, Coast Guard, Marine Corps, and Navy....

Carbon dioxide (CO2), released from burning fossil fuels like oil and coal, is a big contributor to global warming and climate change. Over the years, scientists have come up with several creative ideas to capture the harmful gas. However, implementing them on a large scale has proved elusive. But that may change with Denmark's new, bold initiative, Project Greensand. It involves collecting CO2 before it enters the atmosphere and burying it under the North Sea....

Earlier this year, Saturn lost its long-standing status as "moon king" to Jupiter after 12 new moons were added to the gas giant's 83 known satellites. But Jupiter's victory was short-lived. The ringed planet has reclaimed the title with the discovery of 62 additional moons. Saturn now boasts 145 known moons and is the first and only planet in the solar system to surpass 100 moons....

To the untrained eye, the spotted lanternfly (Lycorma delicatula) may look like a beautiful butterfly. The insect's front wings are light brown with black spots, while its hind wings have contrasting patches of red and black with a white band in between. However, the spotted lanternfly is a pest that feasts on and damages crops. It poses a serious threat to farmers across America....

Three amateur metal detectorists have inadvertently become part of Denmark's history by discovering two sets of hidden Viking treasures dating back over 1,000 years. Jane Foged-Mønster, Louise Stahlschmidt, and Mette Norre Bækgaard stumbled upon the trove while on holiday in Hobro, North Denmark, in late 2022....

On April 25, 2023, Mattel unveiled the latest addition to their Barbie Fashionistas collection — a doll with Down syndrome. The world's largest toy maker hopes it will allow more children to connect with Barbie....

We all need to spend time alone once in a while. But Beatriz Flamini took things to a whole new level. The Madrid, Spain, resident spent 500 days alone in a cave 230 feet (70 meters) underground. Flamini was 48 years old when she went into isolation and 50 when she emerged from the cave on April 14, 2023. The extreme athlete took up the challenge to test her mental strength. She also wanted to help scientists explore the effects of isolation on the human body and mind....

Enjoy reading comic books? Then you will be excited to know that May 6, 2023, is Free Comic Book Day (FCBD). This means you can walk into any one of the 2300+ participating retailers worldwide and pick up a free comic book. Now in its 21st year, the global event is celebrated annually on the first Saturday in May....

Black holes have incredibly powerful gravitational pulls. They usually gobble up everything around them. However, for the first time ever, scientists have found a black hole that is creating millions of stars as it zips through space....

Over the years, scientists have used 3D printers for various products. They include electronic devices, jewelry and even artificial organs. Now, mechanical engineers from New York's Columbia University have unveiled a 3D-printed cheesecake made with seven ingredients. This is the most number of items ever used to print a single food product....