Wednesday, March 19, 2025

Great River

MAHANADI 
One of the most important rivers of east-central India is the Mahanadi, which drains an area of about 1,32,100sq km and has a total length of 900 km. The Mahanadi, whose name translates to ‘Great River’, flows through the states of Chhattisgarh and Odisha before ending its journey in the Bay of Bengal. The 26-km-long Hirakud Dam – the world’s longest earthen dam and one of the first major multipurpose river valley projects started after India’s independence – stands across this river.
The Mahanadi rises from the wild mountainous region of Bastar, about 40 km southeast of Raipur. As several mountain streams combine to form the river, its exact origin is difficult to pinpoint, but the closest source is tracked to a point 6 km from Pharsiya village near Sihawa town in the Dhamtari district of Chhattisgarh. For the first 100 km of its course, the Mahanadi trickles down as a small stream, with a valley width of only 500–600m, flowing northward past Raipur. On reaching the town of Sheorinarayan, it receives its first big tributary, the Shivnath. For the rest of its voyage the river flows eastward. It is joined by two more tributaries – the Jonkand Hasdeo – before entering Odisha near Sambalpur. By this time it has covered about half of its total length. About 10 km from Sambalpur, the Mahanadi is dammed by the Hirakud Dam, a composite structure of earth, concrete, and masonry spanning two hills, the Laxmidungri and Chandilidungri, and forming Asia’s largest artificial lake. 
Before the construction of the dam, the Mahanadi was notorious for its devastating floods that earned it the name of ‘Sorrow of Orissa’. However, the dam has reduced this problem to a great extent, with a network of canals, barrages and checkdams keeping the river well in control. As the river continues on its course, it is joined by several lesser streams including the Ib, Ong, and Tel. Skirting the boundaries of the Boudh district, it forces its way through a series of rapids between peaks and ledges till it arrives at Dholpur,Odisha. The rapids end here, and the river continues on its path to the Eastern Ghats, coursing its way through the 64-km-long Satkosia Gorge. It then joins the Odisha plains near Naraj, 14 km south of Cuttack, where it pours down between two hills that are a mile apart. Here, a barrage has been built to control the river’s flow into Cuttack.
Just before entering Cuttack, the river produces a distributary (the opposite of a tributary: a stream flowing away from a river) known as the Kathjori. The Kathjori splits up into numerous streams after entering the Puri district, and all of them flow into the Bay of Bengal. TheMahanadi itself flows eastward through the Cuttack district and enters the Bay of Bengal through multiple channels at False Point near Paradeep in Kendrapara district. 
The Mahanadi contributes much of the resources and facilitates for industrial development from east-central India to the east coast. The water potential of Mahanadi makes it the second largest in India after Godavari. Considered as the lifeline of east-central India, the Mahanadi River justifies its name given as the ‘Great (maha) River (nadi).

Do you know 
● The specific shape of the course of the Mahanadi River is geographically termed the ‘Horseshoe’ shape.
● Chilka Lake in Orissa gets over 60% of its inland flow from the Mahanadi River. It is a famous wetland site and a favourite visiting place for migratory birds.

Tuesday, March 18, 2025

Story of devotion and sacrifice

LEGEND OF DHARMAPADA

The Sun Temple of Konark has several fascinating legends associated with its construction and origin. One of the most popular stories is tied to the devotion and sacrifice of a young boy named Dharmapada.

According to the legend, King Narasimhadeva I commissioned the construction of the Sun Temple, and 1,200 artisans worked on it for 12 years. Despite their dedicated efforts, they struggled to install the crowning stone (kalasha) on the top of the temple, which was crucial for its completion.

The king had declared that if the temple was not completed within the stipulated time, all the artisans would be executed. As the deadline approached, the artisans became increasingly anxious. At that time, a 12-year-old boy named Dharmapada, the son of the chief architect Bishu Maharana, arrived at the site.

Though Bishu Maharana had left his home when his wife was pregnant, Dharmapada had grown up hearing about his father's work on the magnificent temple. When he learned of the artisans' plight, he examined the construction and ingeniously suggested a solution. Following his guidance, the crowning stone was finally placed, completing the temple.

However, the artisans feared that if the king learned a mere boy had succeeded where they had failed, they would still face punishment. To protect his father's reputation and save the artisans, Dharmapada made the ultimate sacrifice—he leapt into the waters of the Chandrabhaga River from the top of the temple.

The legend portrays Dharmapada as a symbol of wisdom, sacrifice, and dedication. Even today, his story resonates with the people of Odisha, adding a mystical aura to the majestic Sun Temple.

Monday, March 17, 2025

Power of words

A MAN AND THE BLIND BOY 

A blind boy sat on the steps of a building with a hat by his feet. He held up a sign which said, "I am blind. Please help."
There were only a few coins in the hat. 
A man was walking by. He took a few coins from his pocket and dropped them into the hat. He then took this sign, turned it around, and wrote some words. He put the sign back so that everyone who walked by could see the new words.
Soon the hat began to fill up. A lot more people were giving money to the blind boy. That afternoon, the man who had changed the sign came to see how things were. 
The boy recognised his footsteps and asked, "Were you the one who changed my sign this morning? What did you write?" 
The man said, "I only wrote the truth. I wrote only what you had written, but in a different way."
What he had written was, "Today is a beautiful day, and I cannot see it."

Do you think the first sign and the second sign were saying the same thing? Of course, both signs told people that the boy was blind. But the first sign simply said the boy was blind. The second sign told the people they were so lucky that they were not blind. Should we be surprised that the second sign was more effective?

Moral of the story: 
Be thankful for what you have. Be creative. Be innovative. Think differently and positively. 
Invite others towards good with wisdom. Live life with no excuses and love life with no regrets. When life gives you a hundred reasons to cry, show life that you have one thousand reasons to smile. Face your past without regrets. Handle your present with confidence. Prepare for the future without fear. Keep the faith and drop the fear. 
Great men say, life has to be an incessant process of repair and reconstruction, of discarding evil and developing goodness. 
In the journey of life, if you want to travel without fear, you must have the ticket of a good conscience. 
The most beautiful thing is to see a person smiling. And even more beautiful is knowing that you are the reason behind it.

Sunday, March 16, 2025

The oldest giant tortoise

JONATHAN 
Jonathan is a Seychelles giant tortoise who lives on the tiny island of Saint Helena in the South Atlantic Ocean. Born around 1832, he’s 192 years old! The world’s oldest living land animal, this gentle giant has a huge domed shell that is almost 1.2 m in length, strong, elephant-like legs and a long neck that helps him reach tasty leaves.
Today, Jonathan lives on the grounds of Plantation House, where the Governor of St Helena lives. He has a special vet who checks on him regularly, and his caretakers make sure he gets his favorite foods—fresh fruits and vegetables. Despite being nearly 200 years old, he still enjoys exploring his garden and meeting visitors from around the world!

Time-Traveling Tortoise! Jonathan has seen it all—watching our world change from horse-drawn carriages to self-driving cars. That’s Jonathan’s incredible story!
Jonathan was born around 1832. Back then, there were no cars, no phones, and definitely no video games! People rode horses, wrote letters by candlelight, and had never even dreamed of television. 
When he was middleaged, Alexander Graham Bell invented the telephone (1876). People could talk to someone far away for the first time!
As Jonathan munched on grass in his home on St Helena Island, scientists discovered X-rays (1895), which let doctors see inside our bodies like magic.
By the time he was 100 years old, the first airplanes were soaring through the skies.
When he was about 125, penicillin was discovered (1928), a medicine that would save millions of lives.

From Earth to Space: Jonathan saw the launch of Sputnik (1957), Earth’s first artificial satellite. He was there when Neil Armstrong took his famous first steps on the Moon (1969). He’s lived to see robots exploring Mars and telescopes discovering thousands of planets around other stars! 
In Jonathan’s later years, he’s witnessed some mindblowing changes:
* Birth of the internet (1990s)
* Phones becoming tiny computers that we carry in our pockets.
* The rise of robots and artificial intelligence.

A Living Legend: While the world around him has changed dramatically, Jonathan keeps living his peaceful life on the island of St Helena. He’s like a bridge between the past and present—a remarkable animal who has seen more history than any human alive today! 
Long Live Jonathan!

Saturday, March 15, 2025

Picture within a picture

DROSTE EFFECT 

Take a close look at this picture. The woman is holding a tray with a cup of hot chocolate and a packet of cocoa, which shows her own picture holding the same items! This creates a ‘picture within a picture’ effect.
In 1904, a newly launched cocoa tin gained a lot of attention. It featured a nurse holding a tray with the same cocoa tin and a cup of hot chocolate. If you looked closely or used a magnifying glass, the “second” picture on the tin also showed the same image. This repeating picture fascinated consumers, and the cocoa tin, made by Droste, a Dutch chocolate manufacturer, became an instant hit. This technique of repeating images within smaller insets is now known as the Droste effect.
The Droste effect is a visual form of recursion. Recursion is when something repeats itself over and over again. It is a concept used in a variety of disciplines, ranging from mathematics and computer science to art.
The Droste effect was earlier known as mise en abyme, French for ‘placed in the abyss’. It meant an infinite reproduction of an image, as when one stands between two mirrors. Renowned Dutch graphic artist M C Escher used it in many of his works, such as Print Gallery and Drawing Hands.
At one time, the Droste effect was popular in product packaging. Even today, it can be seen in some products. The Laughing Cow cheese brand for instance, has a picture of a cow wearing earrings. When seen closely, the earrings are images of the package, each with the picture of the cow!
Did the Droste effect inspire the creation of the Matryoshka doll? Not really. The Matryoshka doll developed independently in 19th-century Russia. It consists of a set of wooden dolls nesting one inside the other, with each smaller doll resembling the larger one. The Droste effect is more of a visual design concept while the Matryoshka doll is a physical object.

Friday, March 14, 2025

A colourful celebration

HOLI’S MYRIAD HUES

 Holi, the vibrant festival of colours, is celebrated with great enthusiasm across India and in many parts of the world. While most people are familiar with the colourful celebrations and the joyous spirit of Holi, there are several lesser-known facts about this festival that add to its rich cultural tapestry.
Ecological significance: While Holi is primarily a cultural and religious festival, it also has ecological significance. The Holika Dahan is traditionally performed using wood from specific trees that have medicinal properties. The heat from the bonfire is believed to purify the air and kill bacteria, which is particularly beneficial at the onset of spring when diseases are more likely to spread. This practice highlights the ancient wisdom of using natural elements for health and well-being.
Traditional colours: The colours used in Holi, known as "gulal" and "abir," were traditionally made from natural ingredients like flowers, herbs, and minerals. For instance, yellow was made from turmeric, red from flowers like kewada, and green from neem leaves. These natural colours were not only safe for the skin but also had therapeutic benefits. In recent years there has been a resurgence of interest in using such natural colors to avoid the harmful effects of synthetic dyes.
Holi in different regions: Holi is celebrated differently in various regions of India, each with its own unique customs and traditions. In Mathura and Vrindavan, the birthplace of Lord Krishna, Holi is celebrated with great fervour and is known as "Lathmar Holi." Here, women playfully hit men with sticks, symbolising the playful acts of Radha and her friends with Krishna. In the state of Manipur, Holi is celebrated for six days and is known as "Yaoshang," where people build and burn a thatched hut to signify the burning of Holika.
Historical significance: Holi has been celebrated for centuries and has been metioned in ancient texts and inscriptions. The festival is described in the 7th-century Sanskrit drama "Ratnavali" by Harsha, and it is also depicted in ancient paintings and murals. This historical continuity highlights the enduring nature of Holi as a cultural and religious festival. 
Role of music and dance: Music and dance play a crucial role in Holi celebrations. Traditional songs, known as "Holi geet" or "Phagwah geet," are sung during the festival, often accompanied by instruments like the dhol and manjeera. These songs celebrate the love of Radha and Krishna and the joy ofspring. In some regions, there are specific dance forms associated with Holi, such as the "Dhamal" dance in Haryana, which is performed to the beats of the dhol.
Global influence: Holi has gained popularity worldwide with many countries adopting the festival's colorful and joyous spirit. In countries like the United States, the United Kingdom, and Australia, Holi celebrations are becoming increasingly common, often organised by Indian communities and attended by people from diverse backgrounds. This global influence has also led to the creation of events like "colour run" a 5km race where participants are doused with coloured powder at various checkpoints. 
In art and literature: Holi has been a source of inspiration for many poets, writers, and artists. It has been depicted in numerous works of literature, paintings, and sculptures, capturing the essence of the festival's joy and vibrancy. The festival's themes of love, devotion, and the triumph of good over evil have been explored in various forms of art, making Holi a significant cultural symbol.
Post-Holi rituals: After the day of Holi, there are several post-festival rituals that are observed in different regions. In some parts of India, people apply sandalwood paste on their bodies to soothe the skin after being exposed to colours. In others, special sweets like gujiya and mathri are prepared and shared among family and friends. These rituals add a sense of closure to the festival and reinforce the bonds of community and family.
Holi is more than just a festival of colours; it is a celebration of life, love, and the triumph of good over evil. Its rich history, diverse traditions, and cultural significance make it a unique and cherished festival. As Holi continues to be celebrated across the world, it serves as a reminder of the power of joy, unity, and tradition in bringing people together. 

Thursday, March 13, 2025

Mountains of Seven Colours

THE RAINBOW MOUNTAINS OF PERU 
The Rainbow Mountains of Peru, also known as Vinicunca or Montaña de Siete Colores (Mountain of Seven Colors), are a stunning natural wonder located in the Andes Mountains near Cusco. Their vibrant colours come from the sedimentary mineral layers that have been exposed over time due to erosion.

How Were the Rainbow Mountains Formed?
The colours of Vinicunca come from mineral deposits in the rock layers, exposed over thousands of years due to erosion. Each colour represents a different mineral:
Red: Iron oxide (rust)
Yellow: Iron sulphide 
Green: Chlorite (rich in magnesium and copper)
Brown and Purple: Manganese and claystone
White: Quartz and sandstone

Key Facts about the Rainbow Mountains:
Altitude: Approximately 5,200 meters (17,060 feet) above sea level
Location: Around 100 km (62 miles) southeast of Cusco

Vinicunca was covered by ice until about 2015 when climate change and melting ice revealed its colorful layers!

Pizza for two or more

THE PIZZA THEOREM  It’s time for a snack, and you and your pal are all set to share a pizza, with each of you getting half. When the pizza a...