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What are Antiparticles? Is there something that we should worry about?

  Simply put , antiparticles are the opposite of the subatomic particles but with different charge and different magnetic properties . For example the antiparticle of electron is a particle with same mass but different charge , in this case positive charge and it is commonly referred to as Positron.. While the electron has a negative electric charge, the positron has a positive electric charge, and is produced naturally in certain types of radioactive decay . The opposite is also true , the antiparticle of the positron is the electron. Particle–antiparticle pairs can annihilate each other, producing photons ; since the charges of the particle and antiparticle are opposite, total charge is conserved. For example, the positrons produced in natural radioactive decay quickly annihilate themselves with electrons, producing pairs of gamma rays . It is not possible to create an antiparticle without either destroying another particle of the same charge (as is for instance the case when an...
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5 Science Facts That School Didn't Teach Us

https://bismuni.com/pi44ai5kt?key=b1e465821452bd5a40fd39aee6f4dc57  1.Oxygen Has A Colour As a gas, oxygen is odourless and colourless. In its liquid and solid forms, however, it looks pale blue. 2.Bananas are Radioactive This is strange but true , bananas contain potassium, and since potassium decays, that makes them slightly radioactive. But it’s nothing you need to worry about. You’d need to eat 10,000,000 bananas at once to die of radiation poisoning. 3.Water can exist in three states at once This is called the Triple Boil, and at that temperature, water exists as a gas, a liquid and a solid simultaneously. It requires very specific conditions to achieve, so please don't try this at home. 4.Helium can work against Gravity When helium is cooled to extreme temperatures, just a few degrees away from absolute zero (-460˚F or -273˚C), it  turns into a superfluid , meaning it can flow without friction. It can climb up and over the sides of a glass, and leak through molecule-thin...
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Time Travel Paradoxes (Part-2)

 An another type of casual loop paradox is  "Predestination Paradox" 1.Predestination Paradox   A Predestination paradox  occurs when the actions of a person traveling back in time becomes part of past events, and may ultimately causes the event he is trying to prevent to take place. This results in a ‘temporal causality loop’ in which Event 1 in the past influences Event 2 in the future (time travel to the past) which then causes Event 1 to occur. Suppose one day your brother dies in a hit and run car accident , and to prevent this you travel back in time and reaches the place to stop your brother but accidently you hit your brother with the car and realizes that the person who hit your brother was not someone else but you. You wanted to save your brother but you were destined to complete the loop and kill your brother. 2.Killing Hitler Paradox This paradox is quite similar to the Grandfather Paradox but this has a huge effect on everyone in the world rather than ju...
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