In the canon
Relativity
- Form
- Form Non-fiction
- Year
- Year 1916
- Originally in
- Originally in German
- Pages
- Pages 180
A physicist lays out, for the general reader, why there is no single true motion or single true time, only measurements that change with the observer, and how gravity itself is the curving of space and time.
Events which are simultaneous with reference to the embankment are not simultaneous with respect to the train, and vice versa.
The blurb, the gist, the why of the day and the work itself are in the app. The first button needs it on this device; the second gets it there.