Spacetime explained in hindi - SpaceTime क्या है ?

In physics, spacetime is any mathematical model that fuses the three dimensions of space and the one dimension of time into a single 4‑dimensional continuum. Spacetime diagrams are useful in visualizing and understanding relativistic effects such as how different observers perceive where and when events occur.

Until the turn of the 20th century, the assumption had been that the three-dimensional geometry of the universe (its description in terms of locations, shapes, distances, and directions) was distinct from time (the measurement of when events occur within the universe). However, Albert Einstein's 1905 special theory of relativity postulated that the speed of light through empty space has one definite value—a constant—that is independent of the motion of the light source. Einstein's equations described important consequences of this fact: The distances and times between pairs of events vary when measured in different inertial frames of reference (separate vantage points that aren’t being subjected to g‑forces but have different velocities).

Einstein's theory was framed in terms of kinematics (the study of moving bodies), and showed how quantification of distances and times varied for measurements made in different reference frames. His theory was a breakthrough advance over Lorentz's 1904 theory of electromagnetic phenomena and Poincaré's electrodynamic theory. Although these theories included equations identical to those that Einstein introduced (i.e. the Lorentz transformation), they were essentially ad hoc models proposed to explain the results of various experiments—including the famous Michelson–Morley interferometer experiment—that were extremely difficult to fit into existing paradigms.
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Books on Quantum Mechanics for Starters
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(1)Quantum Mechanics: The Theoretical Minimum - https://amzn.to/3o03JxO
(2)Quantum: Einstein, Bohr and the Great Debate About the Nature of Reality
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Credit
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(1) Voiced by - Samar Singh (https://www.youtube.com/channel/UChQHOq5bohQhxnCRnYBG0cw)

(2) Written and Edited by - Ravi Kumar

(3) Background Music Credit - Kevin Mcloid

(4) Video Footage Credit- Videoblocks, Pixabay, Hubblecast

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(x)How do we find Exoplanets?(Hindi) - https://www.youtube.com/watch?v=ZIwD3MfuOMk

(a) Voyager Interstellar Mission in Hindi - https://www.youtube.com/watch?v=qyhrs3H6lso

(b)Time Crystals : A New 4-D Matter - Explained in Hindi | Complete Information - https://www.youtube.com/watch?v=nqV6IKpkAFE

(c)Dark Matter & Dark Energy in Hindi - Complete Information | क्या हैं डार्क मैटर और डार्क एनर्जी - https://www.youtube.com/watch?v=geQ3609iJzU

(d) What are White Holes(in Hindi) - https://www.youtube.com/watch?v=HEfjxEaHtmU

You can watch our Other Episodes by clicking on below given links:
(a)Top 10 Upcoming NASA Space Missions in Hindi |भविष्य में नासा द्वारा छोड़े जाने वाले 10 प्रमुख यान - https://youtu.be/4mcLCb4Ltvo

(1) What are Black Holes in Hindi - https://www.youtube.com/watch?v=zdU1bTNhySc

(2)What Happens after you die in Hindi - https://www.youtube.com/watch?v=6_t35JpUSMM&t=25s

(3)NASA Found signs of Chemicals of Life on Enceladus, the moon of saturn - https://www.youtube.com/watch?v=cXk1m1m1aug

(4)Quantun Entanglement for Dummies in Hindi -https://www.youtube.com/watch?v=JEP2V-4NIIw&t=1s

(5)Double-Slit Experiment Explained in Hindi - https://www.youtube.com/watch?v=EIXtxfEwXuM

(6)Simulation Hypothesis in Hindi -https://www.youtube.com/watch?v=dMBfqRkS8g4

(7)Top 10 Questions science can't answer - https://www.youtube.com/watch?v=4-aBnHhwSLg

(8)Hollow Earth Hypothesis Explained in Hindi -https://www.youtube.com/watch?v=ZckfIBVVEpE&t=1s

(9)Parallel Universe Explained in Hindi -https://www.youtube.com/watch?v=UW-6r7nrF1A

(10)Future World of Humans on Earth - https://www.youtube.com/watch?v=wB6MePWJhJo&t=611s

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