Particle only has mass when moving in one direction

[Nik_SpeakerToCats]

Particle that only has mass when moving in one direction
https://phys.org/news/2024-12-particle-mass.html
quote:
For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction. The quasiparticle, called a semi-Dirac fermion, was first theorized 16 years ago, but was only recently spotted inside a crystal of semi-metal material called ZrSiS.
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Yes, utterly stranger than fiction.
Until this report, you couldn't use the notion in Sci-Fi for being 'Too Handwavium'
Yes, my wits hurt just trying to think about it...
--
Just donated my beloved wife(RIP)'s two violas, tenor recorder and a hefty box of formal scores, 'fun compilations', 'seasonal sing-alongs' etc etc to a SIL as one of her grand-children is rapidly evincing *serious* musical talent. Lest budding maestro's young sib is jealous of his clever sis' bounty, I put a £_10 in his card...

[Poohbah]

The particle is obviously a traditional Catholic.

It only has a valid Mass when it's facing East.

[Nathan45]

[Nik_SpeakerToCats]

Hopefully, the research team warily falsified one 'off the wall' notion by rotating table and checking the whatsit no longer pointed to Mecca...