Why grapes produce fiery plasma in a microwave oven: Scientists have discovered fruit traps with electromagnetic radiation to form intense "hot spots"
- Scientists have discovered that microwave ovens of grapes generate sparks when heated
- . The bridge between the halves of the grape was necessary for the creation of the plasma
- However, they say that two grapes need to be placed only to each other
- The effect can be repeated for quail eggs, beads from hydrogel and blackberry
Annie Palmer For Dailymail.com
Scientists have developed a pyrotechnic trick that involves breaking the grapes in a microwave oven.
A trick, popular on science fairs and on YouTube, is as follows: Cut the grapes into two halves, attach a small piece of leather and put them into a household microwave oven.
Turn on the full power and enjoy the spectacle when a white hot fire explodes from the point where two halves of the grapes touch.
Although many sought to give a scientific explanation of the phenomenon, few have received this right – until now.
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WHAT WAS DISPLAYED?
Many tried to explain why grapes create a plasma or spark in a microwave oven.
Previous theories said that the "antenna", or a small piece of leather, combining two halves of the grape, carried an electric current that made them explode.
However, in a new study it was discovered that an antenna, or "skin bridge", is not necessary for a spark of a fire. Instead, they found two microwaves for catching grapes that cause their heating. Simply putting the two grapes closer together, they have the right size and shape to capture the microwaves, create a "hot spot" and generate plasma. The same effect can be reproduced with pellets of hydrogel soaked in water.
A new study by a team of Canadian scientists shows how this phenomenon works with charged molecules containing sodium and potassium. Scientists have used a combination of thermal imaging and computer simulation of electromagnetic fields to explain why sparks are generated from microwave grapes.
Experiments with water-based hydrogel granules and computer simulations have shown that the attached skin does not play an important role as previously thought.
Ability to absorb water in the microwave has contributed to the formation of hot spots. Simply put, the microwaves were caught in so-called cavities between the grapes.
"If you take two of these grapes and bring them closer to each other, then there is that you no longer have an independent system, but you have a system where these two – we call them cavities – talk with each other , – said New Scientist Thomas Volts, associate professor at Macquarie University in Sydney.
Simply placing two grapes or beads of a hydrogel adjacent to one another, they have the correct size and shape to capture the microwave, creating a "hot spot" and Plasma generates plasma
The plasma becomes independent and is separated from the "dimer" – a pair of identical sources of sources, in this case two halves of the grape, – said the scientists.
Dr. Aaron Slepkov of Trent University of Ontario and his colleagues wrote in the Journal of the National Academy of Sciences: "Observation of a piece of fetal fires in the microwave oven is fascinating and memorable.
"Spectra of radiation from the grape plasma indicate that the types of potassium and sodium rich in grape skin are ionized by the strong concentration of the electric field near the contact point."
"The ions themselves resonate with driving microwave radiation and can develop by a cascade ionization in the air, forming a plasma heated by microwave that grows and becomes independent of dimer,
. Having put two grapes next to each other, they have the right size to capture microwave ovens, creating a "hot spot" and generating plasma
. eggs and blackberries.
The sparkle key for a fiery bulb is a grape-sized thing that is fairly moist.
Scientists also tested the impact on small quail eggs, which also showed that producing hot spots in a microwave oven.
The cleaned eggs did not react the same way, but when the eggs were filled with water, the hot spots returned.