- #1
BookWei
- 13
- 0
In SR, we know that ##\vec E \cdot \vec B## and ##E^{2}-B^{2}## are invariant.
Although I can prove those two invariant physical quantities mathematically, I do not know how to find at least
one example to demonstrate that ##\vec E \cdot \vec B## and ##E^{2}-B^{2}## are invariant.
Many thanks!
Although I can prove those two invariant physical quantities mathematically, I do not know how to find at least
one example to demonstrate that ##\vec E \cdot \vec B## and ##E^{2}-B^{2}## are invariant.
Many thanks!