Did You Know?

Today, computer mice are sleek, lightweight, wireless, and packed with advanced technology. But the very first computer mouse looked nothing like the devices we use today. It was a simple wooden box with wheels underneath. In 1964 , engineer Douglas Engelbart and his team developed an early pointing device while working at the Stanford Research Institute. The device was designed to allow users to move a pointer around a computer screen more easily. The prototype was made from a small wooden block and used two wheels positioned at right angles to detect movement along the horizontal and vertical axes. It also had a button on top. Interestingly, Engelbart's invention wasn't initially called a “mouse.” Its formal name was “X-Y Position Indicator for a Display System.” The nickname “mouse” eventually became popular because the device’s cable looked somewhat like a tail. Engelbart demonstrated the mouse publicly during his famous 1968 computer demonstration , which showcased num...

  Venus, the second planet from the Sun, has one of the strangest rotations in our Solar System. While we normally think of a day as being shorter than a year, Venus completely flips that idea. Venus takes approximately 225 Earth days to complete one orbit around the Sun . This is what we call a Venusian year. But Venus rotates extremely slowly on its axis. It takes about 243 Earth days to complete one rotation relative to the distant stars . In other words, its sidereal day is longer than its year . How Is That Possible? Think of Earth. Our planet rotates once roughly every 24 hours, while it takes about 365 days to orbit the Sun. Venus is very different. Its rotation is incredibly slow, taking more than 243 Earth days. Yet it completes its journey around the Sun in only about 225 days. There is an even stranger twist: Venus rotates in the opposite direction to most planets . This is called retrograde rotation . Interestingly, because Venus rotates backward, a solar day on its sur...

What if you discovered a jar of food in an ancient tomb; and it was still edible thousands of years later? It sounds impossible, but honey is one of nature’s most remarkable foods when it comes to shelf life. Honey is famous for its ability to remain preserved for an incredibly long time. Archaeologists have reported finding honey in ancient Egyptian tombs that was thousands of years old. Some accounts say that the honey was still recognizable and potentially edible after more than 3,000 years! So, what makes honey so resistant to spoilage? One major reason is its very low water content . Most microorganisms, such as bacteria and fungi, need water to grow and multiply. Because honey contains relatively little available water, it creates an environment where many microorganisms struggle to survive. Honey is also naturally acidic . Its low pH makes it difficult for many harmful microorganisms to grow. But honey has another fascinating defense: it contains compounds that can have antibact...

  When you think of the largest living organisms on Earth, you might imagine a massive whale, a giant redwood tree, or perhaps an enormous coral reef. But one of the planet’s largest known organisms is far less noticeable; it is a fungus growing mostly underground in Oregon, USA . Image from  www.planet-wissen.de Known as the “Humongous Fungus,” this extraordinary organism belongs to the species Armillaria ostoyae . Scientists discovered that its underground network covers an astonishing more than 2,300 acres , making it roughly the size of 1,600 football fields ! Image from  commons.wikimedia.org But how can a fungus become so enormous? The answer lies beneath the forest floor. What we commonly recognize as mushrooms are actually only the visible reproductive structures of the fungus. Most of the organism consists of a vast network of thread-like structures called mycelium , which grow through soil and around tree roots. The Humongous Fungus is believed to have spread g...

Imagine getting stuck in traffic; not for an hour, not for an entire day, but for more than 10 days! That’s what happened to thousands of drivers in China in 2010. In August 2010, a massive traffic jam developed on the Beijing-Tibet Expressway , also known as the G6 Beijing-Lhasa Expressway . The congestion stretched for approximately 100 kilometers (62 miles) , turning an ordinary journey into a frustrating ordeal for thousands of travelers. Image from chinadaily.com.cn What Caused the Traffic Jam? The traffic jam was largely caused by a combination of road construction, heavy traffic, and an unusually large number of trucks using the highway. The situation became even worse when vehicles were unable to move freely through the affected section. Some drivers found themselves moving only a few kilometers; or sometimes barely moving at all in an entire day. Image from  www.recordchina.co.jp A Traffic Jam That Became a Temporary Community With thousands of vehicles trapped on the ro...