25 Earth Shattering Facts About Gravity
Δημοσιεύτηκε στις 24 Νοε 2015
Gravity
is one of the greatest mysteries in science. How does it work? Although
we know it exists and can see its effects science has a hard time
explaining the exact mechanism. At first we thought we understood it. At
least after Newton formulated his laws and we believed we had the
universe figured out. But then Einstein came along and completely
changed our view of the cosmos and of physics. Since then we have
discovered some crazy things about quantum mechanics and how the world
works on a microscopic level. Unfortunately, while Newtonian models do a
good job of describing things like gravity between large objects, they
don't do very well describing forces between atoms. And while Einstein's
theory of relativity gives us insight into the microscopic world of the
molecule, it doesn't really do a good job in other areas. So it seems
that we have several ways of describing the same thing but no real
understanding of why or how it works. Over time, numerous theories have
been put forth, and most of them have been found lacking. So, although
we cannot fully describe it, gravity causes some crazy things to happen.
It's not as simple as just pulling things towards each other. Did you
know that gravity affects time? These are 25 Earth shattering facts
about gravity!
Follow us on:
Twitter: https://twitter.com/list25
Facebook: https://www.facebook.com/list25
Website: http://list25.com
Instagram: https://instagram.com/list25/
Pinterest: https://www.pinterest.com/list25/
Check out the physical list here: http://list25.com/25-earth-shattering...
Because of gravity, humans get the urge to pee when their bladder is about 1/3 full
In space, astronauts don't have the urge to pee until their bladder is basically exploding
Einsteins
most revolutionary equation wasn't e=mc2 (unless you are designing
nuclear bombs). His most important equation was G = 8 π T, which
basically stated that space-time is curved and not flat
Humans
could successfully colonize and live on planets with up to 3 times the
gravity of Earth. At 4 times the gravity, however, blood flow to the
brain would be impaired
Earth's gravitational pull makes it impossible for mountains to be taller than 15km (in theory)
There
are regions in space where gravity between the Sun and Earth (or any
other two objects) interact to create something called Lagrangian
points. Other objects can orbit around these points as if there were
something there.
Birds cannot be taken into space because they require gravity to swallow
During
the final Apollo 15 moonwalk, David Scott dropped both a feather and a
hammer to confirm Galileo's theory that objects fall at the same speed
regardless of their mass (on Earth the feather falls more slowly only
because of air resistance)
Jupiter is sometimes referred to as a
failed star because although it had enough mass to pull in a significant
amount of gas, it didn't gain enough to start fusion
Jupiter's gravity will eventually either push Mercury out of the Solar System or send it crashing into the Sun
And more...
Music: Hypnothis by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/
is one of the greatest mysteries in science. How does it work? Although
we know it exists and can see its effects science has a hard time
explaining the exact mechanism. At first we thought we understood it. At
least after Newton formulated his laws and we believed we had the
universe figured out. But then Einstein came along and completely
changed our view of the cosmos and of physics. Since then we have
discovered some crazy things about quantum mechanics and how the world
works on a microscopic level. Unfortunately, while Newtonian models do a
good job of describing things like gravity between large objects, they
don't do very well describing forces between atoms. And while Einstein's
theory of relativity gives us insight into the microscopic world of the
molecule, it doesn't really do a good job in other areas. So it seems
that we have several ways of describing the same thing but no real
understanding of why or how it works. Over time, numerous theories have
been put forth, and most of them have been found lacking. So, although
we cannot fully describe it, gravity causes some crazy things to happen.
It's not as simple as just pulling things towards each other. Did you
know that gravity affects time? These are 25 Earth shattering facts
about gravity!
Follow us on:
Twitter: https://twitter.com/list25
Facebook: https://www.facebook.com/list25
Website: http://list25.com
Instagram: https://instagram.com/list25/
Pinterest: https://www.pinterest.com/list25/
Check out the physical list here: http://list25.com/25-earth-shattering...
Because of gravity, humans get the urge to pee when their bladder is about 1/3 full
In space, astronauts don't have the urge to pee until their bladder is basically exploding
Einsteins
most revolutionary equation wasn't e=mc2 (unless you are designing
nuclear bombs). His most important equation was G = 8 π T, which
basically stated that space-time is curved and not flat
Humans
could successfully colonize and live on planets with up to 3 times the
gravity of Earth. At 4 times the gravity, however, blood flow to the
brain would be impaired
Earth's gravitational pull makes it impossible for mountains to be taller than 15km (in theory)
There
are regions in space where gravity between the Sun and Earth (or any
other two objects) interact to create something called Lagrangian
points. Other objects can orbit around these points as if there were
something there.
Birds cannot be taken into space because they require gravity to swallow
During
the final Apollo 15 moonwalk, David Scott dropped both a feather and a
hammer to confirm Galileo's theory that objects fall at the same speed
regardless of their mass (on Earth the feather falls more slowly only
because of air resistance)
Jupiter is sometimes referred to as a
failed star because although it had enough mass to pull in a significant
amount of gas, it didn't gain enough to start fusion
Jupiter's gravity will eventually either push Mercury out of the Solar System or send it crashing into the Sun
And more...
Music: Hypnothis by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/
Κατηγορία
Άδεια
- Τυπική άδεια YouTube
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου