Note the magic

Put on your thinking caps and get started. This is a fun puzzle and is sure to keep your mind engaged for some time.

Some of you may be familiar with music notes and some may not. But, to play this game, you do not need to know your crochets and your quavers. You just have to be smart.

Picdoku is a type of sudoku where the grid contains images. This puzzle is all about musical notes. Place them in the grid in such a way that each note appears only once in every row, column and 3*3 box.

League of legends

Sports fan? Guess who these legendary Indian sportspersons are by looking at their blurred photos.

Five sporting legends. Innumerable records. This task has the blurred images of some of the greatest Indian sportspersons to play their sport. Can you guess who they are?

Move the slider from the right to reveal the answer.






Photos: Getty Images, K. Murali Kumar, Ritu Raj Konwar, Ravindran R

What’s happening down under?

How much do you know about the Earth’s layers? Here’s a fun game to learn more.

We all know much about the Earth. But, how much do we know about its layers? Beginning at the centre, the Earth is made up of four layers: the inner core, the outer core, the mantle and the crust.

The crust: Thin, brittle, and cold, it is composed of light elements, especially oxygen, aluminium, and silica. However, its thickness varies. For instance, under the oceans, it may be as little as five kilometres while beneath the continents, it may be 30 to 70 kilometres thick.

Mantle: Around 3,000 kilometres thick, the mantle is Earth’s thickest layer. It starts about 30 kilometres beneath the surface and is composed mostly of iron, magnesium and silicon. It is dense, semi-solid, and hot.

The outer core: Made from iron and nickel in liquid form, it sits about 5,180 to 2,880 kilometres below the surface. Heated largely by the radioactive decay of uranium and thorium, this liquid churns in turbulent currents, which generates electrical currents that create the Earth’s magnetic field.

The inner core: This is solid metal and has a radius of 1,220 kilometres. It is very dense and is made mostly of iron and nickel. It is also extremely hot at 5,400°C; almost as hot as the sun’s surface.

Fun fact: Barring the crust, no one has ever explored these layers in person. In fact, the deepest humans have ever drilled is just over 12 kilometres.

Here’s a fun game to see how much you’ve understood. Drag and drop the labels to see if you are able to correctly identify the different layers of the earth.

Mamma mia!

I’m the world’s favourite Italian plumber and March 10 is my day. Do you know why?

It’s a-me, Mario! March 10 is Mario Day. Guess why? Because MAR10 looks like MARIO. You’ve been playing my game, right? So let me tell you about myself.

Photos: AFP Photo, Nintendo via The New York Times

Women at the fore

How did International Women’s Day come to be and why do we celebrate it? Find out now.

International Women’s Day (IWD) is a celebrated every year on March 8. It is seen as a pivot around which the women’s rights movement revolved. It focuses on issues such as violence and abuse against women, gender equality, and more. But how did it all begin? Read on to find out.

Let’s divide and conquer

Do you find division difficult? Here are some simple tips that can help you ace your sums.

Five tips to help solve division problems

Understand the Problem: Read the sum carefully and make sure you understand what you need to find. Identify the dividend (the number being divided) and the divisor (the number you are dividing by).

Use Multiplication: If you’re struggling with division, try using multiplication instead. For example, if you need to divide 36 by 6, think about what number multiplied by 6 equals 36.

Estimate: Sometimes, you can estimate the quotient to make the problem easier. Round the numbers to the nearest multiples and then divide. For example, if you need to divide 75 by 3, you can estimate that 75 is close to 72, which is divisible by 3. So, the quotient is around 24.

Break it Down: Break the problem down into smaller, more manageable parts. For example, if you need to divide 48 by 4, you can think of it as dividing 40 by 4 (which equals 10) and then dividing 8 by 4 (which equals 2). So, the overall quotient is 10 + 2 = 12.

Practice Your Multiplication Tables: Knowing your multiplication tables well can make division much easier. If you’re struggling with a division problem, try using multiplication to check your answer or to find the quotient more quickly.

Remember, practice makes perfect! The more you practise solving division problems, the easier it will become. Now, give these problems a go.

Ear and there

How do we hear sounds from the world around us? Through our ears, of course.

Ear and there
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Got a sweet tooth?

Where did these sweets originate from? Fill the grid with the names of the countries using the dessert as a clue.

We happily wolf down eclairs, payasam, kaju katli, cheesecakes, pies and more. But do you know where these sweets come from? Here is an activity to tell you all about that. Can you identify the country of origin of these popular desserts? Go on, try your hand at it.

Eminent personalities

For the first time, five people received the Bharat Ratna award this year. Do you know who they are?

The Bharat Ratna is India’s highest civilian honour. It is conferred on eminent personalities as a token of appreciation to their remarkable contributions in their field of work.

Instituted on January 2, 1954, the award is conferred in recognition of “exceptional service/performance of the highest order”, without distinction of race, occupation, position or gender. Initially, the award was limited to achievements in the arts, literature, science, and public services. But, in December 2011, the Government of India expanded the criteria to include “any field of human endeavour”.

This year, for the first time, five people were awarded the Bharat Ratna. The most number of awardees in one year until now was in 1999, when there were four. Do you know this year’s winners?





Faster than sound

The first supersonic airliner to enter service, the Concorde flew passengers across the Atlantic at twice the speed of sound.

Concorde was a supersonic airliner, the construction of which began in November 1962. The first flight took off from Toulouse on March 2, 1969. Its tailless aircraft design with a narrow fuselage allowed four passengers to be seated abreast and had the capacity to seat up to 128 people. Four Rolls-Royce/Snecma Olympus 593 turbojets with variable engine intake ramps allowed it to maintain a supercruise up to Mach 2.04 (2,170 km/h) at an altitude of 60,000 ft.

Designed and built by Aérospatiale of France and the British Aircraft Corporation, the Concorde was the first major cooperative venture between the two countries. A treaty was signed on November 29, 1962, to share costs and risks in producing the airliner. While British Aerospace and the French firm Aérospatiale constructed the airframe, Britain’s Rolls Royce and France’s Société Nationale d’Étude et de Construction de Moteurs d’Aviation (SNECMA) developed the jet engines.

On September 26, 1973, the Concorde made its first transatlantic crossing. On January 21, 1976, the world’s first scheduled supersonic passenger service was inaugurated: British Airways flew the aircraft from London to Bahrain and Air France flew from Paris to Rio de Janeiro. In 1976, two additional services — to Washington D.C. and to New York — were introduced. Other routes were added temporarily or seasonally, and chartered flights were flown to destinations across the globe.

Decline

Though the Concorde crossed the Atlantic in less than four hours, operating costs were high, which led to a hike in fares. This meant not many people could afford it. The resultant financial loss meant that routes had to cut down. Finally only New York remained as a regular destination.

The Concorde saga came to an end in 2003, when both Air France and British Airways stopped operations in May and October respectively. Earlier, in 2000, an Air France flight from Paris to New York had crashed shortly after take off, killing all 109 people on board. In the 27 years of operations, this was the only fatal accident that a Concorde suffered. After ceasing operations, Air France donated a Concorde aircraft to the National Air and Space Museum, honouring an agreement it had signed in 1998.

Photos: Wikimedia Commons