Besides magnetic monopoles, what else doesn’t exist?

[Maximum7]

TL;DR Summary

Trying to make a list of all the things in physics that probably don’t exist

I’m trying to keep a master list of all the theoretical “things” in physics that were once postulated to exist but probably don’t, like magnetic monopoles. Could anyone help me out?

 

[Frabjous]

Aether.

 

[Lord Jestocost]

TL;DR Summary: Trying to make a list of all the things in physics that probably don’t exist

I’m trying to keep a master list of all the theoretical “things” in physics that were once postulated to exist but probably don’t, like magnetic monopoles. Could anyone help me out?

Perhaps, the following Wikipedia entries might be of help:

List of experimental errors and frauds in physics
https://en.wikipedia.org/wiki/List_of_experimental_errors_and_frauds_in_physics

List of topics characterized as pseudoscience
https://en.wikipedia.org/wiki/List_of_topics_characterized_as_pseudoscience

Pathological science
https://en.wikipedia.org/wiki/Pathological_science

 

[sophiecentaur]

@Lord Jestocost : Three great lists but you can be such a spoilsport at times.

 

[Dale]

I like ultra-mundane corpuscles and phlogiston.