ELI5: How do we know that light is the fastest thing in existence? Submitted by Grump-Dog t3_10pfa2s on January 30, 2023 at 9:54 PM in explainlikeimfive 32 comments 10
shouldco t1_j6k3b2b wrote on January 30, 2023 at 10:00 PM It's more that there is a universal speed limit and light travels at it. because it has no mass. Permalink 1
Viewing a single comment thread. View all comments