Solar energy (太陽能) is a popular source of clean energy nowadays. It is less likely to pollute (污染) our environment. However, there are some
Probably one of the most fascinating aspects of our solar system is the phenomenon (現象) of planetary rings (行星環). Saturn (土星) is by far the most impressive planet with its beautiful collection of thousands of tiny, coloured rings, even though many planets also have rings. However, why do some planets have rings? According to scientists, the major moons (衞星) and the rings of gas giants (氣態巨行星) like Saturn, Jupiter (木星), Uranus (天王星) and Neptune (海王星) formed at the same time. Any material that is too close to one of these planets cannot stick to a moon. Instead, it disperses(分散) into an orbit around the object because of the planet’s strong gravitational pull (重力牽引). This same process
The University of New South Wales in Australia has recently set a new world record with their solar-powered (太陽能發動的) car, Sunswift 7. The
People commonly know that we need to drink 8 glasses of water a day. There is no standard answer to
With the 2024 Summer Olympics just around the corner, preparations are well underway (正在進行的) in Paris to ensure that the event is a
3D printing has become more popular nowadays. In fact, the concept of 3D printing appeared as early as the 1970s.
Studies have shown that walking can reduce mortality (死亡) risk. Adults aged 60 and above who walk about 6,000 to 8,000 steps per day have
Most of us know that dinosaurs are an extinct species (已滅絕的物種). There are many theories (理論) explaining the extinction of dinosaurs. The most commonly
Social media plays a key role in our daily life since it has become an essential medium for users to communicate with others. When
Among all types of cancers, brain cancers are the most deadly and difficult to cure. It is because human brains
