We've heard scientists telling us that global warming is causing the ice in Antarctica and the Arctic Ocean to melt. Did you know that these ice sheets hold some secret stories in them? It's the story of how our earth's atmosphere changed over many millions of years!
The 19th century was a turning point in India's history, with many new technologies introduced by the British. Inspired, some Indians wished that our country too should be at the forefront of discovery. That's how India's oldest scientific research institute started.
Some people nowadays use special liquid soaps and beauty bars to wash their hands, instead of regular soap. Think they're being snobby? Not really. Let's have a peep into what's in those special soaps.
Today, with a digital camera, we can snap / an image, upload it on the net and share it with our friend in a jiffy. But when photography started, it took hours to take a photograph, which would come out very blurred. Let's take a trip backward in time, and see how photography began.
Once you've used a battery, you've got to throw it away. But batteries contain many poisonous chemicals, which damage the environment. That's why the world is shifting to rechargeable batteries. Shall we see how these work?