The account of this former contributor was not re-activated after the server upgrade of March 2022.
Electromagnetism
Electromagnetism
|
|
(CC) Image: John R. Brews
|
|
|
(PD) Image: John R. Brews
|
The Fizeau apparatus for measuring the speed of light by passing it between the cogs of a rotating gear and reflecting it back through adjacent cogs.
|
|
(PD) Image: John R. Brews
|
Measuring a length using interference fringes.
|
|
(PD) Image: John R. Brews
|
The wavelengths of standing waves in a box that have zero amplitude (nodes) at the walls.
|
|
(PD) Image: John R. Brews
|
|
|
(PD) Image: John R. Brews
|
Boat opposing incoming waves experiences the Doppler effect
|
|
(PD) Image: John R. Brews
|
Doppler shift with moving source
|
|
(PD) Image: John R. Brews
|
Infinitesimal current elements in two closed current-carrying loops
|
|
(PD) Image: John R. Brews
|
Origin at 0, observation point at P, and present position of charge q distant by R from observation point P.
|
|
(PD) Image: John R. Brews
|
Top: View of the light beam's path from inside the train. Bottom: View of the light beam's path from outside the train.
|
|
(PD) Image: John R. Brews
|
Top: View of the light beam's path from inside the train. Bottom: View of the light beam's path from outside the train.
|
|
(PD) Image: John R. Brews
|
Feynman diagram for photon-photon scattering in QED vacuum.
|
|