What is the 3-body problem in science? Who identified it and solved the problem?

 The three-body problem is so maddening it gave Isaac Newton severe insomnia. Two centuries later, a mathematician won a royal prize for "solving" it—by proving it was impossible.

To understand the three-body problem, you first have to understand the two-body problem. If you have two objects in space, like the Earth and the Sun, their gravitational dance is simple and predictable. They move in elegant ellipses. You can write down a straightforward mathematical formula to predict where they will be at any point in the future.

But the moment you add a third object, like the Moon, the math breaks down. All three bodies pull on each other simultaneously, constantly changing the distances and forces between them. This creates a tangled, non-repeating web of orbital paths.

The problem was first identified in 1687 when Newton tried to model the Earth, Moon, and Sun system in his Principia. He couldn't find a clean mathematical formula, later complaining to his friend Edmond Halley that the puzzle "made his head ache" and repeatedly kept him awake.

For the next two centuries, Europe's most brilliant mathematicians—including Leonhard Euler and Joseph-Louis Lagrange—tried and failed to find a "closed-form solution," a simple algebraic equation you could plug time into to get the exact future positions of the three bodies.

In 1889, King Oscar II of Sweden offered a prize to anyone who could finally crack the equation. The prize was won by the French mathematician Henri Poincaré, who demonstrated exactly why everyone had failed: a general, simple solution does not exist.

Poincaré discovered that the three-body system is chaotic. Even the tiniest change in the starting positions or velocities of the bodies—by a fraction of a millimeter—completely changes their paths later on. This realization birthed modern chaos theory and the concept of the butterfly effect.

Today, while there is no simple formula, physicists solve the problem practically using numerical integration. Computers calculate the gravitational forces for a tiny fraction of a second, move the bodies a tiny bit, and repeat the calculation millions of times. This brute-force method is how space agencies navigate probes through the solar system.

French mathematician Henri Poincaré (1854–1912), who proved the three-body problem cannot be solved with a simple mathematical formula. Source: Wikimedia Commons.

What's your favourite science fact?

 Light would take .13 seconds to travel around the Earth.

• Scientists have developed a micro-particle filled with oxygen that can be injected into the blood stream, so we can live without breathing.
• The world's oldest known animal, a mollusc, was 507 years old until scientists killed it by mistake.

1. The Eiffel Tower can be 15 cm taller during the summer

Reason: Large structures are built with expansion joints which allow them some leeway to expand and contract without causing any damage.

There is enough DNA in an average person’s body to stretch from the sun to Pluto and back — 17 times

At over 2000 kilometers long, The Great Barrier Reef is the largest living structure on Earth!!!”

The liquids on Titan undergo a similar cycle to water here on Earth. Liquid methane evaporates from the surface, forming extremely thick clouds in the skies, before eventually raining down and replenishing the lakes and rivers on the ground.

Only 5% of world's population have ever been on airplane.

More than 80% of the population is afraid of flying.

The world’s oldest piece of chewing gum is over 9,000 years old!

Saturn’s Titin store hydrocarbons which is about 10 times larger than the earth’s petroleum and natural gas reserves combined.

Are there any photos that would pique your interest in science?

 1. Tears of the Netherlands

This is a mysterious glass mass known as "Dutch Tears." It is also called "Prince Rupert's Drop" in English, after its introduction to England in 1660 by Rupert, Earl Palatine of the Rhine and Duke of Cumberland. It is said to be extremely rigid and can even withstand bullets.

To destroy it, you hit its tail. The impact then explosively propagates throughout, shattering it into pieces like this.

This characteristic led to the invention of modern shatterproof glass.

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2. A bar magnet lying in a sea of ​​compasses

You can observe how the magnetic field lines clearly extend from north to south.

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3. Dual 5x optical zoom (developed by Oppo)

It uses optical zoom, not digital. The quality of digital zoom is unfortunately poor. By employing a periscope system, high-quality zoom is achieved. It also overcomes the camera bump common in smartphones. It was announced at the 2017 Mobile World Congress.

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4. SpaceX Falcon 9 rocket landing

Why dump fuel boosters into the ocean? SpaceX has developed technology to automatically land the first-stage engine on an unmanned ship at sea, dramatically reducing the cost of spaceflight.

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5. Boeing 787 before interior renovation

The influence of Star Trek is undeniable!

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6. The "Elephant's Foot" of Chernobyl, Ukraine

The lump you see on the floor is commonly known as "elephant's foot."

The "elephant's foot" is an object formed from melted nuclear fuel mixed with large amounts of concrete, sand, and nuclear sealing material. It lies dormant underground where the core originally was located.

It is said that exposure for 300 seconds can lead to death two days later.

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7. A knife made from a meteorite.

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8. Zebrafish larvae observed with an electron microscope

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9. Smoke rings photographed on Mount Etna, Sicily, Italy

What are the most fascinating science facts?

 Do you know this .

When you throw stone on water surface with revolutions at angle of 20 to 25 degree , stone will bounce on water twice or thrice or even more . It's rotation cause these bounces .

In America they held championship of stone skipping .

It's kind of fun and amazing mechanism to watch.

Can you imagine that this technique might be used to build the bomb ?

Yes it was.

During second world war Britain was facing heavy air attacks from Germany . To stop those attacks they will have to destroy their production line . Which was secured with anti aircraft gun and Radar . Generally these machinery industries require lots of water . To fulfill the need they built their industries near the dams .

In order to destroy the aircraft industries Britain need to destroy these dams.

• Möhne dam
• Eder dam
• Sorpe dam
• Ennepe dam

But it was too much difficult as all these dams have anti torpedo nets protecting it from any attack .

To destroy it one need to blast the bomb at the base of dam .

Britain developed special bomb for this named “bouncing bomb” which was invented by Burnes Willis .

Its shape was like drum . Its weight was around 4000 kg . It's released at Target with 500 rpm . This will help to skip on the water . And after reaching to the wall of dam it's revolutions help it to stick to the wall . This bomb now acts as a depth charge . After reaching to certain depth it will blow up.

Britain was successful to slow down German aircraft production by attacking with these bombs .

It had a great impact on WW2.

What are the most fascinating science facts?

 Caution: Pictorial answer here-

There is a moon out there, very similar to earth. It comprises of oceans, lakes, rivers, mountains and a hydrological cycle (rain cycle).

“Then why is Elon Musk planning his colony on Mars?”, you may ask.

The only teeny tiny problem is that all the lakes, rivers, oceans and even rains are of Methane and ethane.

The name of the moon is Titan (not where Thanos is from). It is a natural satellite of Saturn.

A day on Titan may look like this.

• You could fly in its sky

Titan’s thick atmosphere, low gravity (less than our Moon) and reasonable surface pressure (50% of Earth’s) mean that, by flapping a pair of wings strapped to your arms, you could fly in its skies with no more effort than walking.

• It’s the only other world with liquid (that we know of)

Aside from Earth, Titan is the only world we know of that has liquids on its surface. These are in the form of lakes and rivers composed of liquid hydrocarbons including Ontario Lacus, a lake 240 kilometer (150 mile) long in Titan’s southern hemisphere.

• It has a climate system like Earth

The liquids on Titan undergo a similar cycle to water here on Earth. Liquid methane evaporates from the surface, forming extremely thick clouds in the skies, before eventually raining down and replenishing the lakes and rivers on the ground.

• We’ve landed on it, and we will again

The Saturn-orbiting spacecraft Cassini carried with it the Huygens probe, which landed on Titan (our only landing in the outer Solar System) on 14 January 2005. There are proposals being discussed for another landing, this time possibly using a boat.

References: Space Fact

What's the science behind samudra manthan?

 When Devtas lost their powers as Sage Durvasa cursed Indra. The Asurs took this as a great opportunity to attack Swarg-lok. The Devtas were powerless and thus lost the war and flewed from heavens to save their lives. They went to Brahama to seek help, who in turn them to Vishnu.

Lord Vishnu advised them to treat Asurs in a diplomatic manner. Devtas formed an alliance with Asurs to jointly churn the ocean for the nectar of immortality and to share it among them. Vishnu told Devtas that he would arrange such that they alone obtain the nectar.

The ocean was nothing but the Ksheer Sagar, the middle part of Garbodhaka Ocean where cosmic Vishnu resides. The churning of the Ksheer Sagar was an elaborate process. Mount Mandara was used as the churning rod, and Vasuki, the king of serpents, who abides on Shiva's neck, became the churning rope. The Asurs demanded to hold the head of the snake, while the gods taking advice from Vishnu, agreed to hold its tail.

As a result, the Asurs were poisoned by fumes emitted by Vasuki. Despite this, the gods and demons pulled back and forth on the snake's body alternately, causing the mountain to rotate, which in turn churned the Ksheer Sagar.

Actually, Samudra Manthan is nothing but the drilling of Ksheer Sagar bed where maximum density of dark matter exists. Driiling was done with the help of Nuclear power and the poisonous fumes emiited by Vasuki was nothing but the liberation of radiation from nuclear reactor present in this drill setup.

Devtas negotiated with Asurs inorder to fulfil the complete requirement of enriched nuclear material as Asurs had big source of enriched nuclear material as many of underworld and Patal Lokas were ruled by Asurs.

It is a great possibility that bottom of this drill setup or so called mount Mandara is equipped with a stationary drill bit which is kept at 1,00,000°C to 1,50,000°C). The molten ocean bed is pushed around the edges as the drill is forced downward. Massive amount of energy was required to heat the drill head and hence nuclear reactor came into play for generating controlled nuclear energy resulting in immense amount of radiation.

When Asurs realised that they have been tricked by Indra by giving the head side of Vasuki to them. Asurs knew that spontaneous emission of poisonous fumes while drilling can kill all the Asurs. Hence, they speeded up the drilling process due to which Halahal (Lethal Poison) came out from the mouth of Vasuki. Technically, it is nothing but the leakage of radiation due to extra throttle of the machinery given by Asurs. Later it was neutralized by Lord Shiva. Pouring of milk on shiv linga is a scienthific respresentation of cooling of nuclear reactor due to absorption of extra radiation / Halahal by lord shiva during samudra manthan.

This is the reason milk poured on shiv ling is never given as a Prasad because it indicates the byproduct of a nuclear reactor. This is the reason that ancient theories relate shiv ling to modern nuclear reactors.

What are some myths people believe about science that are taught by sci-fi movies but aren't true?

 Cryosleep.

A lot of people believes that we will be able to achieve cryosleep like in sci - fi movies.

In the movie Avatar, Passenger, Aliens, Interstellar etc, we have an entire pods of human beings put to sleep.

Cryosleep is basically impossible because when a person is frozen, they would be sleeping forever because we have no means to restart our brain.

Freezing causes water to crystallize. The ice crystals that form will completely destroys the cell's structure and end up shredding your tissues.

There are only a handful of animals on Earth that can be fully frozen and make it out alive.

Hibernation may be possible by drastically reducing a person’s metabolism. The key to these technologies is finding ways to slow down cell replication with the body during these periods, which effectively tricks the body into forgetting that it is aging.

There are chemical compounds and medicines that are being examined but they will be difficult to test without accidentally killing a lot of the subjects. Realistically, we are still a long way off from but it’s not completely off the table.

What are the most fascinating science facts?

 

1. Our bone marrow makes around 2 million red blood cells every second.
2. A single red blood cell can carry about one billion packets of oxygen around your body. You have around 25 trillion red blood cells …….. so that is too much of oxygen.
3. One drop of blood contains around 5 million RBC’s.
4. Your heart will beat more than 3 billion times if you live to old age and will have pumped enough blood to fill an oil tanker 46 times over.

5. Scientist can use one strand of hair to find out a person’s age , sex and race.

6. A brain weighs about 1.4 kg but if all water were squeezed out of it it would be just 283 gms.

7. Within the troposphere the air temperature drops by about 6.5 degree C per 1000 m of altitude.

8. An average lightning storm can discharge enough energy to supply the entire USA with electricity for 26 minutes.

9. A melting iceberg makes a fizzy sound known as ‘ Bergie Seltzer ‘ . It is caused by trapped air bubbles that pop as they are released.

10. The temperature of most of the Universe is -270 d. C and only 3 degrees warmer than the coldest temperature possible.

11. Even on the clearest darkest night you can see fewer than

1 / 100,000,000,000,000,000 of stars in the Universe.

12. A pinhead sized speck of gas from our Sun could kill a man 160 km away.

BONUS FACT - Most comets have two streaming tails - A blue one made of gas and white one made of dust.

All for today. Enjoy !!!!

Source - Ripley books.

Which science-related photos are hard to believe but are real?

 Some of these photos will make you doubt their validity! Look at the goods, they are special!

• 1. Cut cancer

This cancer cell was opened using an ion beam. The beam blew up part of the cell to reveal a cross section and cut a triangular shape into the surface of the silica substrate on which it rests. The technique, called ion beam milling, allows researchers to look inside cancer cells in unprecedented detail.

• 2. A high-performance boat

This boat-shaped particle is 30 micrometers long and can propel itself by chemical reaction. The researchers 3D printed the particle and covered it with metal. This catalyzes a reaction in the hydrogen peroxide solution the particle is in, to produce a gas that pushes it.

• 3. Pollution and corona

Monkeys in Malaysia hold a medical mask. Protective clothing has become a part of daily life for many amid the coronavirus pandemic. Environmentalists fear that disposable items could contribute significantly to plastic pollution.

• 4. Clownfish

An embryonic clownfish (Amphiprion percula) grows inside its egg. These remarkably detailed images were captured on days one, three, five and nine of its development; the first was taken hours after fertilization. Photographer Daniel Knop won second place in the Nikon Small World photomicrography competition.