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2022-08-17: What If Dark Energy is a New Quantum Field?
- 02:31: ... pressure, it also produces regular attractive gravity due to its positive energy density, just like regular matter and energy do. But the effect of its negative ...
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2022-04-20: Does the Universe Create Itself?
- 15:24: ... The presence of dark energy tends to flatten the universe because it’s a positive energy density, just like matter. But it’s negative pressure can allow even a closed ...
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2021-12-10: 2021 End of Year AMA!
- 00:02: ... create a negative energy density without having a much higher level of positive energy density so that's a bummer uh i i personally uh wouldn't place much stock in ...
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2021-04-21: The NEW Warp Drive Possibilities
- 13:16: These guys define a type-1 warp field as a surface of positive energy density enclosing a flat metric.
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2020-04-22: Will Wormholes Allow Fast Interstellar Travel?
- 09:44: ... negative energy density it produces is probably always countered by the positive energy density of the mass of the plates themselves for any physically possible ...
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2019-09-16: Could We Terraform Mars?
- 17:20: ... the inflaton field was left with a very tiny but positive energy density, then it's possible that it could now be powering the current ...
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2019-03-28: Could the Universe End by Tearing Apart Every Atom?
- 03:05: ... volume temperature and the amount of stuff anyway the upshot is that positive energy density and no real pressure leaves the right side of the equation negative so ...
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2019-01-09: Are Dark Matter And Dark Energy The Same?
- 02:53: But here’s the punchline: if empty space has a constant, positive energy density then it also has a negative pressure.
- 03:10: ... dark energy has competing effects – its positive energy density gives it a positive gravitational effect but its negative pressure is ...
- 07:49: So, you remember I said that a constant POSITIVE energy density can be expressed as a cosmological constant?
- 11:47: ... energy, with its positive energy density, when added to the energy of both regular and dark matter, are needed to ...
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2016-05-18: Anti-gravity and the True Nature of Dark Energy
- 08:44: Both have positive energy density.
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2015-10-28: Is The Alcubierre Warp Drive Possible?
- 02:03: ... by solving Einstein's field equations around a point of extreme positive energy density. ...
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