Timeline for About the foci of concave spherical mirrors
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 7, 2020 at 7:12 | history | edited | MarianD | CC BY-SA 4.0 |
edited body
|
| Jan 7, 2020 at 2:50 | history | answered | MarianD | CC BY-SA 4.0 |