I still don't get the concept of antimatter
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An electron has a negative charge. A positron is like an electron, but with a positive charge, instead. Every particle has an antiparticle equivalent! They're created in matching pairs, and if a particle touches an antiparticle, they annihilate (all their mass converts to energy)
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Thanks, this is my favourite antimatter fact.https://www.symmetrymagazine.org/2009/07/23/antimatter-from-bananas …
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Here's the original discovery paper by Carl Anderson annotated: https://fermatslibrary.com/s/the-positive-electron …
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We recently did this experiment with the kids. Minds were blown (more mine than theirs).https://youtu.be/2iaXXpQw3rw
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hahahaha
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See https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.1931.0130 … for the seminal paper by Paul Dirac that predicted the existence of anti-electron. The interesting stuff begins at the 2nd paragraph of the 2nd page. If someone has a better quality PDF of this paper, please share here.
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Love this pic. One see by eye that the curvature is larger above than below the lead plate, meaning the particle comes from below (it has lost speed in the plate). Knowing the magnetic field points away, the charge is positive.
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The line being very thin indicates it is a particle with very small mass. Protons are positivé, but leave a much thicker line (for the same momentum). Hence ithe pic is evidence of a very low mass positive particle.
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Anti-hydrogen peroxide activity of fish and soy saucehttps://www.researchgate.net/publication/248510877_Anti-hydrogen_peroxide_activity_of_fish_and_soy_sauce …
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