6 ms·
Computers didn't exist!
by agravier 5y ago
Computers didn't exist!
- danbruc 5y agoComputers existed, they were just mechanical or human until the invention of electrons.
- medstrom 5y agoElectrons always existed.
- Siecje 5y agoAre we sure there is more than one?
- pmontra 5y agoHow did we get from Easter Eggs to this https://en.wikipedia.org/wiki/One-electron_universe https://en.wikipedia.org/wiki/One-electron_universe ?
- Cthulhu_ 5y agoThey were only invented in the 1800's by Big Power to sell electricity.
- vba616 5y agoDidn't I read somewhere that electrons flow in the opposite direction from electricity? So they probably aren't that important. Maybe getting rid of them would make the electricity go faster!
- elzbardico 5y agoDon't be silly, electrons were invented by Benjamin Franklin on his garage in Palo Alto.
- tasty_freeze 5y agoNot until the universe was somewhere between one and ten seconds old. https://en.wikipedia.org/wiki/Chronology_of_the_universe#Lepton_epoch https://en.wikipedia.org/wiki/Chronology_of_the_universe#Lep...
- adrian_b 5y agoNo, electrons existed as far back as we can model, but they were accompanied by an almost equal quantity of anti-electrons (positrons). As long as the temperature was high enough, there was a balance between annihilation reactions of electrons and positrons and generation of electron-positron pairs. After the temperature decreased a lot, much lower than the temperature where the protons and all the neutrons that had not decayed yet had combined into nuclei of helium and lithium, all the positrons annihilated with most of the electrons, so only a much smaller number of electrons survived. After further cooling, most of the electrons became bound to nuclei, and all the matter became plasma, like most of the matter in the present universe still is (because most of the matter is inside the stars).
- tasty_freeze 5y agoYou are right that I quoted the wrong section. The earlier section says that the electromagnetic force didn't exist in its current form until 10*-12 seconds or so, when the electromagnetic and weak forces split from a combined "electroweak" force into their current forms.
- danbruc 5y agoAfter further cooling, most of the electrons became bound to nuclei, and all the matter became plasma, like most of the matter in the present universe still is (because most of the matter is inside the stars). When electrons bind to nuclei, a plasma turns into a neutral gas, this happened in the recombination phase. The neutral gas then collapsed into stars which turned the gas making up the stars back into plasma. Also the energetic photons emitted by stars started turning the remaining gas back into a plasma which is called the reionization phase.