Articles - Page 110 of 538 - Young World Club

Stick this chick

Download this fun activity and make a cute little chick to keep you company at your study table.

How ice supports life on earth

Have you ever wondered how ice’s unique properties are responsible for aquatic life on Earth?

How does all the ice in the world support life on Earth? How does marine life survive under a frozen lake? Check out this slider to learn more.

The legend of the Christmas spider

Why do Ukrainians adorn their Christmas trees with decorative spider webs? Watch this video story to find out.

Legal eagles to the rescue

How much do you know about the different types of lawyers? A fun quiz to find out.

We have all heard of lawyers but did you know that there are different kinds of lawyers? Try your hand at this quiz to find out how much you know about the legal field.

Under the sea!

Time for a crossword. How many of these sea animals do you know?

Run for health

Is a marathon a sport or a fitness activity? It’s both!

The marathon is a long-distance foot race with a distance of 42.195 km. The name is derived from a Greek legend that states a messenger named Phillippides, ran from Marathon to Athen to o deliver news of the victory of the battle of Marathon.

Today, it has evolved into a sport pursued by millions either professionally or recreationally. Today, more than 800 marathons are held throughout the world each year.

Marathon running is highly beneficial to our health. It improves cardiovascular fitness and muscular endurance. The best part is the “runner’s high” – a boost in good mood and happiness caused by the release of endorphins from long durations of running.

Below is a sequence of a marathon race. Look at the picture clues and captions to put them in order.

Big screen magic

Watching movies in the cinema theatre has its own perks! What makes the experience wonderful?

Watching a movie on the big screen is a captivating experience. It’s not just the movie but the snacks, company, sound, and screen technology add to the experience.

Below are images of a few things that add to the cinematic experience. Can you guess what they are and find their names in the word grid?

Nature, the teacher

Part 32: Sugriva learns that humans owe a lot of their scientific knowledge and inspiration for inventions to Nature.

Sugriva can’t believe that electricity can be transferred through air, as the Tesla coils would make possible.

Sugriva: How is it possible? I still cannot believe it!

Vali: Every science “magic” we do is already being done by Nature over millions of years.

Sugriva: What do you mean?

Vali: For example, lightning travels from the ionised clouds for three to seven km towards the ground.

Sugriva: Oh yes! Nature does it 1000 times better! Perhaps, it’s possible to provide electricity to all houses directly from the clouds?

Vali: Some scientists on Earth tried doing exactly that!

Sugriva: So humans are learning science from Nature?

Vali: Right from the creation of the universe and the planets to the movement of animals, there is science behind everything. Humans study these phenomena and try to replicate them.

Sugriva: Have they been successful?

Vali: Yes! Much of their scientific knowledge and inventions have been the result of studying Nature. Aircraft control system was inspired by birds; humans learnt to swim and developed the ship control system by observing fish, and they came upon the creation of alloys by studying volcano eruptions.

Sugriva: Basically, they learnt how to use and master air, water and heat to their advantage.

Vali: What humans really learnt is the “Law of Conservation of Energy”.

Sugriva: What does that mean?

Vali: Let me explain that in a simple way. Right now you can walk, jump or run with a certain level of energy. Can you do them with the same energy level after a few hours?

Sugriva: Yes, if I eat and rest in between.

Vali: Exactly. Food is a source of energy that gets converted into muscular energy or kinetic energy, which you use when performing any mechanical work like using a bow and arrow or gathering water from a well. So what the Law basically means is “Energy can neither be created nor be destroyed; it just transforms from one form to another.”

Sugriva: Can you help me understand this a little better with an experiment?

Vali: Sure. Since you are familiar with using the bow and arrow, let me show you my version of a bow and arrow where elastic energy is converted into mechanical energy or potential energy is converted into kinetic energy. (Refer to experiment below)

Sugriva: That is interesting! I am going to try it on a bigger scale like some spherical mountain structures.

Little did Vali know that Sugriva would use this device against him in the near future.

Rubber band-powered cannon

Materials required:

Tape
Pencil
2 rubber bands
Scissors
Paper or small plastic ball

The author is the founder and CEO of Vaayusastra Aerospace, an IIT-Madras incubated ed-tech startup that offers Air Science workshops for children between five and 14 years.