
20220817: 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 ...


20220420: 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 ...


20211210: 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 ...


20210421: The NEW Warp Drive Possibilities
 13:16: These guys define a type1 warp field as a surface of positive energy density enclosing a flat metric.


20200422: 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 ...


20190916: 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 ...


20190328: 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 ...


20190109: 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 ...


20160518: Antigravity and the True Nature of Dark Energy
 08:44: Both have positive energy density.


20151028: Is The Alcubierre Warp Drive Possible?
 02:03: ... by solving Einstein's field equations around a point of extreme positive energy density. ...
