Assertion: rotation | /r/HasProperty | discerned
Facets:
value: from those by 720°
type: OTHER
Source sentences:
text: The finding of 1924 that in quantum mechanics the spin of an electron and other matter particles (known as spinors) can be described using quaternions furthered their interest; quaternions helped to understand how rotations of electrons by 360° can be discerned from those by 720° (the “Plate trick”).