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[[Matter]], and therefore everything seen, is made out of 3 different types of substances that [[physicist]]s call particles: [[electron]]s, [[proton]]s and [[neutron]]s.
[[Matter]], and therefore everything seen, is made out of 3 different types of substances that [[physicist]]s call particles: [[electron]]s, [[proton]]s and [[neutron]]s.
These particles have been mysterious for quite some time: although [[physicist]]s knew they existed, they knew very little about them. In [[physics]], you can say you "know" something when, among other proprieties ,you can predict and describe the way it behaves. You know that a [[stone]] will fall if it's not held properly. [[Physicist]]s can describe how it falls and predict exactly where it will touch the [[ground]] using mathematical formulas.
These particles have been mysterious for quite some time: although [[physicist]]s knew they existed, they knew very little about them. In [[physics]], you can say you "know" something when, among other proprieties, you can predict and describe the way it behaves. You know that a [[stone]] will fall if it's not held properly. [[Physicist]]s can describe how it falls and predict exactly where it will touch the [[ground]] using mathematical formulas.
But physicists couldn't predict anything about the electron! Until a [[Paul Dirac]] thought about it: he found a very simple way to describe the proprieties and behavior of electrons, but... there was something curious about it. His description would only work if the electron had a "[[twin]]" particle, identical to it but with an opposite electric charge. It would be just like its mirror image!
But physicists couldn't predict anything about the electron! Until a [[Paul Dirac]] thought about it: he found a very simple way to describe the proprieties and behavior of electrons, but... there was something curious about it. His description would only work if the electron had a "[[twin]]" particle, identical to it but with an opposite electric charge. It would be just like its mirror image!