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Feynman's Theory of Alternative Histories

Quantum Systems and Alternate Histories Why do Quantum Systems have no Single Past? Richard Feynman once wrote, "I think I can safely say that nobody understands quantum mechanics". Now I know this isn't the best opening line to a post that's about to describe an amazing quantum theory concerning the existence of our universe's history. But consider this: Feynman, who was one of the most brilliant theoretical physicists of our time, showed that quantum particles do not have a single history; instead, it has every possible history associated with them, each with its own definite probability! Of course, it's only natural if you had to read the latter sentence again to completely grasp its meaning. Even Feynman himself was reluctant to accept this weird characteristic of quantum systems. Not only did he mathematically prove that quantum particles have no unique past, but Feynman also theorized something called Sum Over Histories. This in turn resulted in the ...

What is Exotic Matter?

Exotic matter: Breaking barriers of Physics But what makes it “exotic”? To save us a lot more time, the right question to ask would be, “what’s not exotic with this type of matter?” The answer to the first question would be everything . And that’s exactly why you can see the name exotic matter , in almost every context that deals with advanced futuristic concepts like wormholes or time travel or even gravitational repulsion! In this post, we’re going to discuss some of its odd properties, the theoretical origin of this concept and most importantly, its potential to literally tamper with our natural world. What is Exotic matter? Exotic matter is a type of hypothetical matter that is believed to lie outside our physical laws of nature. It was first brought up by Einstein and Satyendranath Bose in the early 1920s, to introduce the fifth state of matter. This kind of matter, although various forms of it exist like complex mass and degenerate matter, one of them called neg...

Black Holes: The Ultimate Lens of the Universe

**Effects of Gravity#2** Decoding the Extreme Light Warp Phenomenon around Black holes Image by AlexAntropov - Pixabay Okay, real talk: black holes are weird. Weird on a lot of levels. They violently curve and twist spacetime, gobble up and spew out matter and deadly radiation, make photons orbit them, and to top all of that, they can literally turn anything near its vicinity into nice lil' spaghetti strands that are basically frozen in time! But one of the most mindblowing (still weird though) features of black holes is their interaction with light itself! From relativistic effects like Doppler beaming to Gravitational Lensing, these gigantic space monsters show up some truly spectacular visuals in space. Just to give you an idea of what we're dealing with, here's another weird fact about black holes - you could actually see the back of your head right in front of you if you look straight ahead through the photon sphere of a black hole! And that is exactly what we'...

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