Physics, Pixelated
What Exactly Is Entropy? Boltzmann’s S = k log ...
Entropy is not really “disorder.” It is a count of how many microscopic arrangements look the same from outside. Here is Clausius’s version, Boltzmann’s formula, and why the count almost...
What Exactly Is Entropy? Boltzmann’s S = k log ...
Entropy is not really “disorder.” It is a count of how many microscopic arrangements look the same from outside. Here is Clausius’s version, Boltzmann’s formula, and why the count almost...
How Does GPS Correct for Relativity? The 38 Mic...
Every GPS fix depends on Einstein. Satellite clocks gain roughly 38 microseconds a day relative to the ground, and the system is built to cancel it. Here is where the...
How Does GPS Correct for Relativity? The 38 Mic...
Every GPS fix depends on Einstein. Satellite clocks gain roughly 38 microseconds a day relative to the ground, and the system is built to cancel it. Here is where the...
Does Observing a Particle Really Change It? Wha...
“Observation changes reality” is the most quoted line in pop quantum physics, and the least precise. Here is what measurement really does to a particle, what has been tested, and...
Does Observing a Particle Really Change It? Wha...
“Observation changes reality” is the most quoted line in pop quantum physics, and the least precise. Here is what measurement really does to a particle, what has been tested, and...
How Are Electricity and Magnetism Connected? Fr...
Two hundred years ago electricity and magnetism looked like separate curiosities. Then a compass needle twitched, and within fifty years they had become a single theory that also explained light.
How Are Electricity and Magnetism Connected? Fr...
Two hundred years ago electricity and magnetism looked like separate curiosities. Then a compass needle twitched, and within fifty years they had become a single theory that also explained light.
Who Really Discovered It? Credit, Myths and Mis...
Physics history is full of single names attached to shared work. Here are nine cases where the real story is more interesting, told from primary sources and without inventing heroes...
Who Really Discovered It? Credit, Myths and Mis...
Physics history is full of single names attached to shared work. Here are nine cases where the real story is more interesting, told from primary sources and without inventing heroes...
How Did the First Elements Form? Big Bang Nucle...
Almost all the hydrogen and helium in the universe was made in its first few minutes. Here is how that cosmic kitchen worked, how we check it, and the two...
How Did the First Elements Form? Big Bang Nucle...
Almost all the hydrogen and helium in the universe was made in its first few minutes. Here is how that cosmic kitchen worked, how we check it, and the two...