We finally understand the real reason why grapes make plasma fireballs if you microwaves



<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Popular mechanics"data-reactid =" 31 "> Popular mechanics

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "• Have you ever seen these YouTube videos where a grape explodes in a microwave oven? The physicist Aaron Slepkov did it."data-reactid =" 32 ">• Have you ever seen these YouTube videos where a grape explodes in a microwave oven? The physicist Aaron Slepkov did it.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "• His team worked to determine the true cause of the plasma fire phenomenon by testing not only grapes, but also other round objects such as cherries and quail eggs."data-reactid =" 33 ">• His team worked to determine the true cause of the plasma fire phenomenon by testing not only grapes, but also other round objects such as cherries and quail eggs.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "• It turns out that water-based round elements, like grapes, amplify the power of microwaves to create a hot spot. "data-reactid =" 34 ">• It turns out that water-based round elements, like grapes, amplify the power of microwaves to create a hot spot.

Who knows the reasons that a scientist may have to choose the question that will guide the work of his life. Perhaps while meditating on the great mysteries of life, he prefers the orientation of physics to that of religion. Perhaps he has always dreamed of circling the Earth on the International Space Station, watching the sun rise every 90 minutes above the soapy blue of his home planet. Maybe he accidentally put a fork in a microwave once. Or maybe it was the microwave, but with a grape.

<p class = "canvas-atom-canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "" In 1995, [Trent University physicist Aaron Slepkov] had found the first website describing the manufacture of plasma in a microwave, and he was really fascinated and kept it in the background, "said coauthor Pablo Bianucci when I called to ask a document him, Slepkov, and an undergrad student named Hamza Khattak, who came out this week in the Proceedings of the National Academy of Sciences of the United States of America. "data-reactid =" 36 ">" In 1995, [Trent University physicist Aaron Slepkov] had found the first website describing the manufacture of plasma in a microwave oven, and he was really fascinated and kept it in mind, "confided the coauthor, Pablo Bianucci, when I called to ask him questions on a paper that he, Slepkov, and an undergraduate student. student named Hamza Khattak wrote who came out this week in the Proceedings of the National Academy of Sciences of the United States of America.

The young Slepkov had discovered the old sleight of hand in the microwave, in which a sliced ​​grape burst into a ball of fire of plasma, an ionized gas considered as the fourth state of matter and which is present in large quantity, among others the sun. Twenty years later, Slepkov, now a professor of physics, undertakes his own experiment to explain how the phenomenon works.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "First of all: the rules. of a careful inspection Among the best videos of the "grape of grapes in the microwave" on the Internet, it seemed necessary to cut the grapes in half before going to the microwave, leaving a small bridge of rich skin in ions between the two hemispheres. (Is it science? If so, I think I would like to be a scientist.) "The more or less consensual explanation was that the grape would function as an antenna and create a current across the skin bridge. that would warm it up and then create the plasma, "says Bianucci.
"data-reactid =" 60 "> First: the rules After a thorough review of the best videos" from the bunch of grapes to the microwave on the Internet ", it seemed necessary to cut the grapes in two before to go into the microwave, leaving a small bridge of rich skin between the two hemispheres. (Is this science? If so, I think I'd like to be a scientist.) "The more explanation or less consensual was that the grape would work as an antenna and create a current through it. the skin bridge that will eventually heat it up and create the plasma, "says Bianucci.

<p class = "web-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Through the sacrifice of innumerable masses of grapes (and twelve researchers) have shown that this hypothesis – which had never been mathematically explained – was wrong.Not only is it not necessary to bridle the skin between the halves of grapes, but you can ignite a fireball at plasma in two whole grapes placed side by side in a small bowl or two cherries, two quail eggs, or even two hydrogel beads of the type used in the diapers. "data-reactid =" 61 "> By the sacrifice of huge masses of grapes (and twelve microwaves), the researchers showed that this hypothesis, which had never been explained mathematically anyway – was not wrong, not only a bridge of skin between the halves of grapes is not necessary, but you can ignite a plasma fireball in two whole grapes placed side by side in a small bowl, or two cherries of earth , two quail eggs or even two hydrogel beads of the type used in diapers.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Using microwave with deleted doors," they have managed to decouple plasma generation – the really flashy thing you see – from the real phenomenon going on underneath, which is the focus of electromagnetic radiation, the microwaves, between the two spheres, "says Bianucci. it works on six pages of sentences I do not understand, on things like supermodes, ball geometries, and Q. factor of some dimers. Water-based orbs the size of a grape amplify the microwave (the electromagnetic energy just like light) so effectively that a hot spot located between the two orbs creates a plasma. "data-reactid =" 62 "> Using the microwave with the doors removed," they managed to decouple the plasma generation – the really flashy thing you see – from the real phenomenon going on underneath, which is the focus of the electromagnetic radiation, the microwaves, between the two spheres ", explains Bianucci The document explains how it works in six pages of sentences that I do not understand, on elements such as supermodes, the geometry of the balls and the Q factor of some dimers the result is that Water-based orbs the size of a grape amplify the microwave (the electromagnetic energy just like light) so effectively that a hot spot located between the two orbs creates a plasma.

<p class = "canvas-atom web-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "In addition to being, you know, cool , Slepkov, Khattak and Bianucci could one day contribute to a better understanding of a domain called nanoplasmonics. "If you put, for example, two nanoparticles of metal next to each other, you get the same effect, a really increased electromagnetic field, but with metals, you see it with light instead of microwaves" says Bianucci. "The important thing is that the water has a high reflection index, which significantly reduces the wavelength. If we could find a material that works like water, but for light, where we could actually reduce the wavelength of light, we could probably use it to focus the light in to very very small spaces. "" Data-reactid = "67"> In addition to being cool, you know, Slepkov, Khattak and Bianucci could one day contribute to a better understanding of a field called nanoplasmonics. "If you put, by example, two metal nanoparticles, you have the same effect, a really increased electromagnetic field, but with metals, we see it with light rather than with microwaves, "says Bianucci." The important is that the water has a high reflection index, greatly reducing the length could find a material that works like water, but for the light, where we could really reduce the wavelength of light we could probably use it to focus the light in very, very small spaces. "

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Until then, you can put it under Fruit-Des based physics issues that have become much more serious than expected, a category that includes queries such as "What would happen if all the earth was made of blueberries? "" Data-reactid = "68"> Until then, you can classify it under Fruit physics questions much more serious than expected, a category that includes surveys such as "What would happen if the whole Earth was made of blueberries? "

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "("You might also like")"data-reactid =" 69 ">("You might also like")


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