Scientists solve mystery of Jupiter's polygon storms
It turns out the answer was not a mathematical algorithm from the space age - but a proof developed almost 150 years ago.
Sky News,Thursday 24 September 2020 19:47, UK
https://news.sky.com/story/mystery-of-jupiters-polygon-storms-solved-by-scientists-12080478
Scientists have solved the mystery of Jupiter's polygon storms
Scientists have solved the mystery of Jupiter's polygon storms, which were first spotted by NASA's Juno space probe in 2019.
At the gas giant's south pole, hidden from view from Earth, is a herd of storms arranged in a perfect geometric pattern.
This is unlike anything else humanity has observed in the universe. The most comparable gas giant we know of, Saturn, has single massive storms at each of its poles - not a collection of them arranged in such a mathematical formation.
The gas giant held a secret geometric pattern at its south pole
But a research team at the California Institute of Technology, working in the Andy Ingersoll laboratory, has now figured out why the storms arrange themselves in this pattern.
The answer - published in the Proceedings of the National Academy of Sciences - was inspired by a mathematical proof developed long before the space age - and almost 150 years ago by the British mathematical physicist and engineer Lord Kelvin.
Working alongside American physicist Alfred Mayer, he observed in 1878 that when circular magnets were floated in a pool of water, they would spontaneously arrange themselves into geometric shapes.
"Back in the 19th century, people were thinking about how spinning pieces of fluid would arrange themselves into polygons," Professor Ingersoll said.
"Although there were lots of laboratory studies of these fluid polygons, no one had thought of applying that to a planetary surface."
This is what the scientists at Ingersoll's laboratory did, building a computer model of what might be happening on Jupiter and running the simulations to see if their model held any value.
The storms are very similar to those on Earth, which form close to the equator and drift towards the poles - but on Earth the hurricanes and typhoons tend to dissipate when they get too far away from the equator.
However, because Jupiter's storms do not experience any friction from the land or the oceans, they keep on going until they reach the poles.
No comments:
Post a Comment