On 2020-06-20, at 19:07, Joel Jaeggli <joe...@bogus.com> wrote: > > This is c in a vacuum. Light transmission through a medium is slower.
Ob-movie: https://en.wikipedia.org/wiki/The_Hummingbird_Project Grüße, Carsten
On 2020-06-20, at 19:07, Joel Jaeggli <joe...@bogus.com> wrote: > > This is c in a vacuum. Light transmission through a medium is slower.
Ob-movie: https://en.wikipedia.org/wiki/The_Hummingbird_Project Grüße, Carsten