Assertion: ion's electron | /r/CapableOf | travel in the medium
Facets:
value: temporarily
type: TEMPORAL
value: faster than light
type: MANNER
Source sentences:
text: However, when relativistic electrons—that is, electrons moving at a speed close to c—are injected into a dielectric medium such as water, where the local speed of light is significantly less than c, the electrons temporarily travel faster than light in the medium.