將一粒提子切半, 然後一齊貼住咁放入微波爐叮
登登登登!
咁就整到Plasma架啦!
Plasma is known as the fourth state of matter (first three states are solids, liquids and gases). Plasma is created by adding energy to a gas so that some of its electrons leave its atom.
For years, the internet has hemmed and hawed over a mysterious yet universal truth: a grape, sliced nearly in half and placed in the microwave, will suddenly begin to spit plasma.
A microwave, and Some plasma
https://www.youtube.com/watch?v=eg_dGvgOTOI
The fiery sight had us mystified for years, garnering millions of views online. none of the expert opinions before were based on formal research.
Now, at long last, a team of three physicists thinks they have it figured out.
Three scientists, Hamza K. Khattak, Pablo Bianucci, and Aaron D. Slepkov, published an explanation in the Proceedings of the National Academy of Sciences (PNAS).
Explanation (in short):
A grape is the right size and refractive index to trap microwaves inside it. When you place two (or two halves) close together the fields interact with each other creating a maximum of electromagnetic energy where they touch. This creates heating, sparks, and plasma, which is further fed with energy directly by the microwaves.
How Microwaving Grapes Makes Plasmahttps://www.youtube.com/watch?v=wCrtk-pyP0I&t=2s
簡單啲講:
因為提子個尺寸同水份岩岩好,
啲Microwave 會因為內反射困住喺粒提子度,
然後不停有新microwave加入, 能量會不停放大.
當兩粒提子(或兩個切半咗嘅提子) 放一齊, 佢地嘅磁場相互影響, 產生巨大電磁能量, 形成 等離子體(Plasma).
有關研究:
Linking plasma formation in grapes to microwave resonances of aqueous dimers
https://www.pnas.org/content/early/2019/02/13/1818350116
Received for review October 25, 2018
approved January 9, 2019
