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Israeli Scientists Solve Physics' 'Three-Body Problem'
Jerusalem Post ^ | AUGUST 14, 2021

Posted on 08/17/2021 10:50:31 PM PDT by nickcarraway

The three-body problem, which has been a focus of scientific study for over 400 years, represented a stumbling block for famous astronomers such as Isaac Newton and Johannes Kepler.

Scientists at Technion-Israel Institute of Technology have found a solution to one of physics' greatest questions in a paper published this month. The paper, published in Physical Review X, focuses on the three-body problem, which concerns the orbits of the Sun, Earth, and the Moon.

While in a binary orbit system consisting of two celestial bodies, the orbits can be accurately predicated mathematically, while the complex interactions of a three-body problem are chaotic and unpredictable.

The three-body problem, which has been a focus of scientific study for over 400 years, represented a stumbling block for famous astronomers such as Sir Isaac Newton and Johannes Kepler.

Up until now, scientists could only predict what happens in a three-body system by using computer simulations. When simulating the three-body problem, they found two phases occur.

First, a chaotic phase occurs when all three bodies pull on each other violently, until one star is ejected far from the others, yet still on a bound orbit. In the second phase, one of the stars escapes on an unbound orbit, never to return.

Prof. Hagai Perets and PhD student Barry Ginat of the Technion found a way to calculate a statistical solution to the random two-phase process. Instead of predicting the actual outcome, they calculated the probability of any given outcome.

The entire series of calculations is modeled after a certain type of mathematics known as the theory of random walks, called "drunkard’s walk."

"The random walk model accounts for such phenomena naturally,” said Mr. Ginat. "This has important implications for our understanding of gravitational systems, and in particular in cases where many encounters between three stars occur, like in dense clusters of stars," noted Prof. Perets.


TOPICS: Astronomy; Education; Science
KEYWORDS: 3bodyproblem; 3bodyproblme; astronomy; barryginat; hagaiperets; isaacnewton; israel; johanneskepler; math; mathematic; maths; nbodyproblem; physics; science; technion; threebodyproblem
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To: nickcarraway

“The entire series of calculations is modeled after a certain type of mathematics known as the theory of random walks, called “drunkard’s walk.””

...and yet they give NO CREDIT to Hillary.


21 posted on 08/18/2021 4:10:53 AM PDT by BobL (I shop at Walmart and eat at McDonald's, I just don't tell anyone, like most here.)
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To: nickcarraway

“Instead of predicting the actual outcome...”

In other words, they didn’t actually solve it.


22 posted on 08/18/2021 4:56:48 AM PDT by HartleyMBaldwin
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To: nickcarraway

God solved that ‘problem’ eons ago....................


23 posted on 08/18/2021 5:12:32 AM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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To: Born to Conserve

“There are lies, damned lies and statistics.” - Mark Twain


24 posted on 08/18/2021 5:13:37 AM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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To: SunkenCiv

The Mafia never has a ‘3-body’ problem.................They always solve it......................


25 posted on 08/18/2021 5:18:11 AM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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To: nickcarraway

.


26 posted on 08/18/2021 5:29:24 AM PDT by sauropod (Time is like quicksilver, smearing the years... - Bill Nelson)
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To: nickcarraway; SunkenCiv; Kevmo; Wonder Warthog; lepton; Ernest_at_the_Beach

Thanks nickcarraway!
*PING* to the rest of you.


27 posted on 08/18/2021 7:11:41 AM PDT by grey_whiskers (The opinions are solely those of the author and are subject to change with out notice.)
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To: algore

Juvenile *snicker* for the pun.


28 posted on 08/18/2021 7:12:22 AM PDT by grey_whiskers (The opinions are solely those of the author and are subject to change with out notice.)
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To: Born to Conserve

This could be useful in terms of figuring out the percentages of planets or red dwarves that are kicked out of star systems and end up going rogue, but it is useless as far as providing a closed form solution for the exact location of the three bodies at some future time t given a specific set of initial conditions.


29 posted on 08/18/2021 8:08:17 AM PDT by who_would_fardels_bear (This is not a tagline.)
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To: Red Badger

Take the extra half hour and get rid of the body. That’s what I’ve heard. ;^)


30 posted on 08/18/2021 8:18:05 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: SunkenCiv

It helps if you own a butcher shop or meat packing plant..................


31 posted on 08/18/2021 8:21:58 AM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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To: Red Badger

Or, a hog pen.

Or, a bathtub and some acid.

Or, a random hole in the ground in a national forest...


32 posted on 08/18/2021 8:30:10 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: SunkenCiv; nickcarraway

Interesting.


33 posted on 08/18/2021 8:40:00 AM PDT by BenLurkin (The above is not a statement of fact. It is either opinion, or satire. Or both.)
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To: SunkenCiv
Or a cornfield.........................
34 posted on 08/18/2021 8:43:50 AM PDT by Red Badger (Homeless veterans camp in the streets while illegal aliens are put up in hotels.....................)
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To: algore
These alien girls want to have a talk with you on their flying saucer.....be sure to bring Bud Light.
35 posted on 08/18/2021 8:45:05 AM PDT by BenLurkin (The above is not a statement of fact. It is either opinion, or satire. Or both.)
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