What are the 3 main characteristics of dark matter?
#Part6๐ฏ
โDark matter is dark: It emits no light and cannot be seen directly, so it cannot be stars or planets. Dark matter is not antimatter.
Antimatter annihilates matter on contact, producing gamma rays. Astronomers do not detect them. Dark matter is not black holes: Black holes are gravity lenses that bend light.
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#Part6๐ฏ
โDark matter is dark: It emits no light and cannot be seen directly, so it cannot be stars or planets. Dark matter is not antimatter.
Antimatter annihilates matter on contact, producing gamma rays. Astronomers do not detect them. Dark matter is not black holes: Black holes are gravity lenses that bend light.
Share: @AstroMechanics
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โขCan dark matter be used as fuel๐?
#Part7๐ฏ
โScientists Says Dark Matter Could Likely Be Incredible Fuel for Spacecraft.
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#Part7๐ฏ
โScientists Says Dark Matter Could Likely Be Incredible Fuel for Spacecraft.
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โขWhat would happen if there was no dark matter๐ซฃ?
#Part6๐ฏ
โ Without dark matter, galaxies would lose a large fraction of the gas that forms new stars immediately after the first major star-forming event they experienced. (As of scientists Explanations)
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#Part6๐ฏ
โ Without dark matter, galaxies would lose a large fraction of the gas that forms new stars immediately after the first major star-forming event they experienced. (As of scientists Explanations)
Share: @AstroMechanics
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๐ก๐ฎQuick Fact๐ฎ๐ก
#Final-part7
The future of the universe may depend on how much dark matter there is. If there is too much, its gravity will eventually stop the Universe's expansion, and make it shrink again๐จ
A galaxy's bright stars may be only a tiny parts of its total matter. Much of the galaxy may be invisible dark matter
๐This week's discussion about Dark Matter has ended.
Thanks for reading๐
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#Final-part7
The future of the universe may depend on how much dark matter there is. If there is too much, its gravity will eventually stop the Universe's expansion, and make it shrink again๐จ
A galaxy's bright stars may be only a tiny parts of its total matter. Much of the galaxy may be invisible dark matter
๐This week's discussion about Dark Matter has ended.
Thanks for reading๐
Share: @AstroMechanics
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Introduction to Quantum Mechanics
By David J. Griffiths
This book first teaches learners how to do quantum mechanics, and then provides them with a more insightful discussion of what itmeans. Fundamental principles are covered, quantum theory presented, and special techniques developed for attacking realistic problems.
The books two-part coverage organizes topics under basic theory, and assembles an arsenal of approximation schemes with illustrative applications
Enjoy your reading time๐
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By David J. Griffiths
This book first teaches learners how to do quantum mechanics, and then provides them with a more insightful discussion of what itmeans. Fundamental principles are covered, quantum theory presented, and special techniques developed for attacking realistic problems.
The books two-part coverage organizes topics under basic theory, and assembles an arsenal of approximation schemes with illustrative applications
Enjoy your reading time๐
Share: @AstroMechanics
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Quantum Mechanics.pdf
13.1 MB
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Time for important laws
Canada has introduced a new criminal code for crimes on the Moon. From now on, astronauts who committed misconduct can be officially prosecuted.
Everyone willing to rob aliens will now answer to the law in Canada๐
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Canada has introduced a new criminal code for crimes on the Moon. From now on, astronauts who committed misconduct can be officially prosecuted.
Everyone willing to rob aliens will now answer to the law in Canada๐
Share: @AstroMechanics
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James Webb Telescope finds evidence of 'celestial monster' stars the size of 10,000 suns lurking at the dawn of time
Read here๐ง
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Read here๐ง
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For the first time in 50 years: the U.S. Defense Department will hold hearings on UFOs
โจPreviously, U.S. intelligence published a preliminary assessment of 144 reports of "unidentified airborne phenomena" since 2004.
On May 17, a closed secret hearing on a Pentagon program, known as the Aerial Object Identification and Control Group, will be held. It was created in 2021 after U.S. intelligence released an estimate of 144 reports of "unidentified airborne phenomena" and could explain only oneโจ
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โจPreviously, U.S. intelligence published a preliminary assessment of 144 reports of "unidentified airborne phenomena" since 2004.
On May 17, a closed secret hearing on a Pentagon program, known as the Aerial Object Identification and Control Group, will be held. It was created in 2021 after U.S. intelligence released an estimate of 144 reports of "unidentified airborne phenomena" and could explain only oneโจ
Share: @AstroMechanics
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This snake robot could hunt alien life on icy moons like Saturn's Enceladus
Forget snakes on a plane; a new project is working on snakes on alien terrain.
๐ฝRead more
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Forget snakes on a plane; a new project is working on snakes on alien terrain.
๐ฝRead more
Share: @AstroMechanics
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How big is the ISS?
โจInside, it appears to be about a 6-bedroom house. Typically, there are 3 to 6 astronauts and cosmonauts staying there and working on the ISS for 6 months ๐ฐ
According to the astronauts, being in such a confined space with the same people for long periods of time is psychologically difficult.
The crew is formed 2.5 years before the flight, and only the most stress-resistant candidates are selected. During this time, astronauts train together, go on missions, take survival courses, work and even become family friends.
And if suddenly antipathy arises between the crew members, they, as a rule, warn their superiors about itโจ
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โจInside, it appears to be about a 6-bedroom house. Typically, there are 3 to 6 astronauts and cosmonauts staying there and working on the ISS for 6 months ๐ฐ
According to the astronauts, being in such a confined space with the same people for long periods of time is psychologically difficult.
The crew is formed 2.5 years before the flight, and only the most stress-resistant candidates are selected. During this time, astronauts train together, go on missions, take survival courses, work and even become family friends.
And if suddenly antipathy arises between the crew members, they, as a rule, warn their superiors about itโจ
Share: @AstroMechanics
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Did you know๐ฑ?
World's most expensive material is antimatter, which cost $62 Trillion for just one gram. On the other hand world economy is $88 trillion!
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World's most expensive material is antimatter, which cost $62 Trillion for just one gram. On the other hand world economy is $88 trillion!
Share: @AstroMechanics
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Did you know๐ป?โจOne of the Greatest Minds of Humanity Albert Einstein, believed that Ghosts are real. He said all the energy of the universe is constant and since this energy cannot be destroyed, this can transform into new Energy or creation of Ghostsโจ
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Infinity-Science
#AstroQuestions --WHAT WAS BEFORE BIG BANG?? Comment below๐๐๐ Share: @AstroMechanics
Answer:- It's possible that before the Big Bang, the universe was an infinite stretch of an ultrahot, dense material, persisting in a steady state until, for some reason, the Big Bang occured. This extra-dense universe may have been governed by quantum mechanics, the physics of the extremely small scale.
THANK YOU ALL FOR PARTICIPATION๐!!
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THANK YOU ALL FOR PARTICIPATION๐!!
Share: @AstroMechanics
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A 20-year old person goes at a high speed in a rocket on his birthday. When he comes back to Earth after 1 Earth year. He would be
Anonymous Quiz
15%
1 year old
11%
2 year old
35%
A few months older
38%
Same age
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How is information extracted from a wave function?
Anonymous Quiz
21%
Differential
42%
Partial differential
24%
Expectation value
13%
Operator
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According to Einstein's special theory of relativity, laws of physics can be formulation based on
Anonymous Quiz
26%
Quantum state
37%
Inertial frame of reference
6%
Non-inertial frame of reference.
31%
All
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