science

Krishna's Butterball

Krishna's Butterball is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Krishna's Butterball rather than just read about it. In short: Krishna's Butterball (also known as Vaan Irai Kal and Krishna's Gigantic Butterball) is a gigantic balancing rock, a granite boulder resting on a short incline in the historical coastal resort town of Mamallapuram in Tamil Nadu state, India. Being part of the Group of Monuments at Mamallapuram, a UNESCO World Heritage Site built during the seventh- and eighth-century CE as Hindu religious monuments by the Pallava dy…

Key takeaways

Krishna's Butterball belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Krishna's Butterball to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Krishna's Butterball from memory before moving on to harder problems.

Reference excerpt

Krishna's Butterball (also known as Vaan Irai Kal and Krishna's Gigantic Butterball) is a gigantic balancing rock, a granite boulder resting on a short incline in the historical coastal resort town of Mamallapuram in Tamil Nadu state, India. Being part of the Group of Monuments at Mamallapuram, a UNESCO World Heritage Site built during the seventh- and eighth-century CE as Hindu religious monuments by the Pallava dynasty, it is a popular tourist attraction locally. It is listed as a protected national monument by the Archeological Survey of India.

Etymology

The original name, Vaan Irai Kal (வான் இறைக்கல்), according to the Atlas Obscura, translates from Tamil as "Stone of Sky God". According to Hindu scriptures, Krishna often stole butter from his mother's butter handi; this may have led to the namesake of the boulder. In 1969, a tour-guide is said to credit its present name, Krishna's Butterball, to Indira Gandhi who was on a tour of the city.

History The Pallava king Narasimhavarman (630–668 CE) made a failed attempt to move the boulder. The Indian Tamil king Raja Raja Chola (985 and 1014 CE) was inspired by the balance of this massive stone boulder and it led to the creation of never-falling mud dolls called Tanjavur Bommai, which having a half-spherical base tends to come back to its original position every time one tries to make it fall. In 1908, then-governor of the city Arthur Havelock made an attempt to use seven elephants to move the boulder from its position due to safety concerns but with no success. On 12 October 2019, Indian Prime Minister Narendra Modi and General Secretary of the Chinese Communist Party Xi Jinping took a photo in front of Krishna's Butterball holding hands during their second "informal summit".

Details Krishna's Butterball is located in the tourist town Mahabalipuram in Chengalpattu district in the state of Tamil Nadu in south India. It is easily accessible via the East Coast Road (ECR) at a distance of 55 km (34 mi) from Chennai Central railway station and 53 km (33 mi) from Chennai International Airport. To the south, Pondicherry is 95 km (59 mi) distant. The boulder is approximately six metres (20 ft) high and five metres (16 ft) wide and weighs around 250 tonnes (250 long tons; 280 short tons). It seems to float and barely stand on a slope on top of a 1.2-meter (4 ft) high plinth which is a naturally eroded hill. The rock is estimated to be 1,200 years old. A part of the boulder on top back has broken away, making it look like a half-spherical rock from the back, while it appears round shaped from the other three sides.

Gallery

In media Krishna's Butterball was shown in an episode of History TV18's television infotainment show, OMG! Yeh Mera India, hosted by Krushna Abhishek.

Illustrations

Worked examples

Example 1 — a first encounter with Krishna's Butterball

Start with the simplest possible case. Write down what Krishna's Butterball claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Krishna's Butterball before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Krishna's Butterball ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Krishna's Butterball

In research: Krishna's Butterball appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Krishna's Butterball in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Krishna's Butterball is common in secondary-school and first-year university syllabi. It links to neighbouring topics Krishna, Mahabalipuram, Natural monoliths, so understanding it makes those chapters shorter.
In everyday life: Look for Krishna's Butterball outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Krishna's Butterball in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Krishna's Butterball means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Krishna's Butterball out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Krishna's Butterball in simple terms?

Why does Krishna's Butterball matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Krishna's Butterball?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Krishna's Butterball.