May 05, 2023 08:00:00

An animation collection that shows in one shot how an object with ``negative mass'' behaves

Most of the substances around us have 'positive mass', but it is also thought that there are substances with '

negative mass' in this universe that accelerate in the opposite direction to those with positive mass. It is A site that summarizes the image of such a negative mass as an animation was released, so I actually accessed it.

Negative Mass: What Does That Actually Mean?
https://students.tools/negative/

Start with a message that says, 'In order to find negative mass, you must first find negative weight.' A spring with

NicoCado (gluttonous YouTuber) and a spring with balloons are prepared, so click 'RELEASE' to see how the force is applied.

Then it looks like this. A downward force of 6900N is applied to the NicoCad spring, and a force of 42N is applied to the balloon spring. In other words, it can be said that the spring of the balloon has a downward force of -42N. This is the concept of negative weight.

This time, challenge with the surrounding air removed. Something should change.

Then a force of 0.01N was applied to the spring with the balloon attached. Because the balloon was less dense, it was lifted up by the air, which stretched the spring, giving it a negative weight. The weight displayed this time is the pure weight of the balloon ignoring the air.

Once you have an image of negative weight, the next step is to prepare a ball. This ball is a ball with a positive mass (ordinary ball), and if you click 'SHOOT' it will be launched as a pop.


Next, place 'ball with positive mass (left)' and 'ball with negative mass (right)' side by side. What happens if you shoot a ball with positive mass toward a ball with negative mass?

A ``negative mass ball'' that collides with a ``positive mass ball'' is attracted to a ``positive mass ball'', slips through the ``positive mass ball'' and rolls to the other side. It's gone.


Next, let's put a ball with a positive mass into a space with a wall and launch it. A ball with positive mass slows down due to friction and comes to a stop.


Now let's put in a ball with negative mass. You can see what happens by clicking the image below.


This is a small planet that slowly orbits a star. Try adding a negative mass planet.

Negative masses are attracted to positive masses, but are repelled when approached. Ultimately, both end up accelerating forever.


At the end, 'Anyway, I hope you learned something new today! If you enjoyed this short presentation, please consider buying me a coffee ! Thank you very much!' concluded with