Gravitational Lensing: What It Is And How It Is Helping Us Discover New Galaxies
35.4 هزار بار بازدید -
4 سال پیش
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Gravitational lensing occurs when a
Gravitational lensing occurs when a huge amount of matter, like a star, galaxy, or cluster of galaxies, creates a powerful gravitational field around it, strong enough to bend the light coming from distant galaxies (behind them). Roots of gravitational lensing lie in Einstein theory of relativity which states that massive bodies warp the space around it. Thereby the light passing through this warped space curves near massive celestial bodies. Depending upon the position of emitting, lensing and observing body, gravitational lensing may distort, magnify or lead to multiple occurrences of the same object in different places.
Leveraging the concept of gravitational lensing, a technique called microlensing is developed which is helping us in discovering new galaxies and dark matter. Einstein ring is a beautiful phenomena observed using microlensing which we have illustrated in this video using animations. Thus, Einstein's ground-breaking work on general relativity in 1915 has paved the way for astronomers to continue studying the very structure of the Universe leveraging the power of gravity!
Table of Contents:
Introduction- 0:00
Gravitational lensing- 1:13
Einstein ring- 3:59
Dark matter- 4:35
Conclusion- 5:30
#science #animation #gravitationallensing
References:
https://link.springer.com/article/10....
https://www.cfa.harvard.edu/~dfabrica...
https://arxiv.org/abs/astro-ph/0102081
https://www.nytimes.com/2010/10/14/us...
Source of Vectors: shutterstock.com
Source of Videos: elements.envato.com
Original Article Link: https://www.scienceabc.com/nature/uni...
If you wish to buy/license this video, please write to us at [email protected].
Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )
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Leveraging the concept of gravitational lensing, a technique called microlensing is developed which is helping us in discovering new galaxies and dark matter. Einstein ring is a beautiful phenomena observed using microlensing which we have illustrated in this video using animations. Thus, Einstein's ground-breaking work on general relativity in 1915 has paved the way for astronomers to continue studying the very structure of the Universe leveraging the power of gravity!
Table of Contents:
Introduction- 0:00
Gravitational lensing- 1:13
Einstein ring- 3:59
Dark matter- 4:35
Conclusion- 5:30
#science #animation #gravitationallensing
References:
https://link.springer.com/article/10....
https://www.cfa.harvard.edu/~dfabrica...
https://arxiv.org/abs/astro-ph/0102081
https://www.nytimes.com/2010/10/14/us...
Source of Vectors: shutterstock.com
Source of Videos: elements.envato.com
Original Article Link: https://www.scienceabc.com/nature/uni...
If you wish to buy/license this video, please write to us at [email protected].
Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )
SUBSCRIBE to get more such science videos!
@scienceabc
Follow us on Twitter!
Twitter: abc_science
Follow us on Facebook!
Facebook: sciabc
Follow our Website!
https://www.scienceabc.com
4 سال پیش
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