# Reference results for Negative_mass from Search.com.

## Negative mass - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Negative_mass

In theoretical physics, negative mass is a hypothetical concept of matter whose mass is of opposite sign to the mass of normal matter, e.g. −2 kg.

## gravity - Does matter with negative mass exist? - Physics ...

physics.stackexchange.com/.../does-matter-with-negative-mass-exist

Serg: as Qmechanic corrected you, "matter" is the actual stuff, not a number, so it can't be positive or negative. The thing that has a numerical value is "mass", not ...

## Exotic matter - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Exotic_matter

Negative mass would possess some strange properties, such as accelerating in the direction opposite of applied force. For example, an object with negative inertial ...

## A Model of Negative Mass

www.sjsu.edu/faculty/watkins/massnegative.htm

Physicists have from time to time toyed with the concept of negative mass, but nothing of significance has come of such speculations. However there does exist a ...

## Cosmologists Prove Negative Mass Can Exist In Our Universe

https://medium.com/the-physics-arxiv-blog/cosmologists-prove...

Negative mass is the hypothetical idea that matter can exist with mass of the opposite sign to the ordinary stuff. Instead of 2 kg, a lump of negative mass would be ...

## negative mass - David Darling

www.daviddarling.info/encyclopedia/N/negative_mass.html

A hypothetical counterpart to ordinary (positive) mass. Although it is not known if negative mass exists, or even if its existence is theoretically possible ...

## Negative mass - Physics Forums

Mass is currently defined to be a positive quantity. When certain computations bring about a negative mass, we take the absolute value of the number.

## Negative Mass - Physics Forums

I remember one of the speculative ideas kicking around a while ago was the notion that mass, like charge, could be "positive" or "negative." This was different from ...