Physicists are surprising! They've discovered matter with a mass less than zero. The Negative Mas...
In the classical world, everything is simple: mass is always positive. It determines how much a body resists acceleration and how strongly it attracts other bodies. However, if mass becomes negative, everything turns upside down.
0:00 Introduction
2:21 What happens if something has negative mass?
5:58 Mass must be positive!
9:07 Experiments
12:53 Where this might be useful
16:21 Negative Mass and Cosmology
18:58 Hermann Bondi's Negative Mass Hypothesis
Sources:
Negative Mass
https://en.wikipedia.org/wiki/Negativ...
Such matter contradicts most of the energy conditions in general relativity
https://ntrs.nasa.gov/api/citations/2...
The body will move in the opposite direction, as if trying to escape the rule
https://physicstoday.aip.org/opinion/...
Physicists create negative mass
https://phys.org/news/2017-04-physici...
No, physicists Didn't Create Negative Mass
https://backreaction.blogspot.com/201...
Antigravity and Antimass
https://www.npl.washington.edu/av/alt...
Warp Drive
https://ntrs.nasa.gov/api/citations/2...
Can Negative Mass Cosmology Explain Dark Matter and Dark Energy?
https://www.aanda.org/articles/aa/ful...