Voltage is like the “push” behind electric charge, making it move. Imagine it like water pressure in a hose – the higher the pressure, the more forcefully the water comes out. The highest voltage ever produced was at the Tandem Van de Graaff facility in the U.S. The machine used […]

Different dinosaurs had varied lifespans, depending on their size and type. Similar to today’s animals, larger dinosaurs lived longer. For instance, big dinosaurs like the Brachiosaurus might have lived for up to 100 years. In contrast, smaller dinosaurs like Velociraptors probably lived about 20-30 years. Scientists estimate dinosaur lifespans by

Biometrics means measuring parts of our body or behavior to recognize who we are. Examples are fingerprints, face shapes, and even the way we walk. Among all these methods, DNA identification is currently the most accurate. DNA is like a unique code in every person, except identical twins. It has

Yes, electricity can be dangerous and even deadly, but it’s not the electricity itself that kills. It’s how it affects our bodies. When a large amount of electrical current passes through the body, it can interfere with the natural electrical signals that keep our heart beating regularly. This can cause

Cats do not smile in the same way humans do.Often, cats try to pull in scent from stuff like urine to the top of their mouth. Here,a sensory organ known Jacobson’s organ is used to analyse the scent. When a cat does this, it curls its lips and squints, a

Fish don’t sleep like humans. They don’t have eyelids to close, and they don’t lie down. Instead, they have a resting phase. During this time, they might hover in one spot or slowly swim around. Their bodies and brains take this time to recover. In humans, the region of high

When we talk about Earth’s rotation, we usually mean how fast it spins around its own axis. Imagine the Earth as a giant spinning top. This spin gives us day and night. The Earth takes approximately 24 hours to complete one full rotation. But how fast is it spinning? To

Soap’s invention wasn’t the work of a single person but a process that evolved over time. The oldest evidence of soap-making comes from ancient Babylon, around 2800 BC. Archaeologists found clay tablets detailing a simple recipe: mixing animal fats with wood ash. Around 1550 BC, ancient Egyptians also had a

The greyish-greenish ring you sometimes see around the yolk of hard-boiled eggs is a result of a chemical reaction. When eggs are boiled at 70°C, the sulfur in the white converts to hydrogen sulfide. This gas smells like rotten eggs; however, in a boiled egg, it reacts with iron to

It’s a smart survival strategy! Spiders are ambush predators, which means they don’t actively chase their prey, lions or cheetahs. Instead, they wait patiently for the prey to come close. By staying still, spiders save energy. Imagine if you ran all day, you’d get really tired and hungry, right? By