See https://www.researchgate.net/publication/26386594_Relativity_in_the_Global_Positioning_System by Neil Ashby which describes in detail the multiple relativistic corrections applied in the GPS.
Absolutely. How long is a photon? As long as a piece of string.
A photon has a frequency and, (simplistically) to have a frequency, you must have an extended wave with something changing and going up and down.
The more cycles you have in the wave, the more accurately you can measure the...
Without wading through the thread ...
... my advice would be to get or read a copy of Feynman's Lectures in Physics and all will be revealed. The lectures are mainly written prose as Feynman was a most brilliant teacher who always explained the physics before going on to develop the equations...
I recently came across this most apposite ancient Chinese proverb
I hear - and I forget
I see - and I remember
I do - and I understand
Attributed to Xun Kuang (c. 310 - c. 235 BC) known as Xunzi (”Master Xun”), a Chinese Realist Confucian philosopher. See...
There is physics and then there is physics.
Einstein apparently once sat next to an attractive young lady at a dinner party.
She had no idea who he was and began a polite conversation by asking "What do you?"
"I study physics", said Einstein.
"Gosh!", said she, clearly surprised. "I...
The story is often told that, after studying the Elements, King Ptolemy asked Euclid whether there were an easier way of learning mathematics, to which the great geometer replied, "There is no Royal Road to geometry."
Neither is there one to science.
“There is no royal road to science, and...