>>16841998
You've motivated me to try
https://isidore.co/misc/Physics%20papers%20and%20books/Zotero/storage/VJTX5AAP/Drago%20Alfaro%20-%202018%20-%20AMP%C3%88RE%E2%80%99S%20LONGITUDINAL%20FORCES%20REVISITED.pdf
(page 32) with gallium

if i observe the force in gallium, I will be able to move forward