Quantum, Relativity & Forces Explained | Pixelated Physics
9 articles
What Is Fire? The Physics and Chemistry of Comb...
Fire is not a substance. It is a chemical reaction that runs downhill fast enough to make its own heat and light. Here is where the energy of a flame...
What Is Fire? The Physics and Chemistry of Comb...
Fire is not a substance. It is a chemical reaction that runs downhill fast enough to make its own heat and light. Here is where the energy of a flame...
Does Erasing Information Cost Energy? Landauer’...
Deleting a file feels free, but physics says erasing information has a minimum cost. Landauer’s principle puts it at kT ln 2 per bit, about 2.9 × 10⁻²¹ joules at...
Does Erasing Information Cost Energy? Landauer’...
Deleting a file feels free, but physics says erasing information has a minimum cost. Landauer’s principle puts it at kT ln 2 per bit, about 2.9 × 10⁻²¹ joules at...
Will the Universe End in Heat Death? What Physi...
“Heat death” is the idea that the universe runs down until no energy differences are left to do work. It began with Kelvin’s 1852 dissipation paper. Modern cosmology refines it:...
Will the Universe End in Heat Death? What Physi...
“Heat death” is the idea that the universe runs down until no energy differences are left to do work. It began with Kelvin’s 1852 dissipation paper. Modern cosmology refines it:...
Can Temperature Be Negative? Negative Absolute ...
Physicists have made systems with negative absolute temperature since 1951. They are not colder than absolute zero; they are hotter than any positive temperature. Here is why, what was measured,...
Can Temperature Be Negative? Negative Absolute ...
Physicists have made systems with negative absolute temperature since 1951. They are not colder than absolute zero; they are hotter than any positive temperature. Here is why, what was measured,...
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...
What Happens at Absolute Zero? Why −273.15 °C C...
Absolute zero is the bottom of the temperature scale, but physics says you can never quite get there. On the way down, matter turns superfluid, expels magnetic fields and piles...
What Happens at Absolute Zero? Why −273.15 °C C...
Absolute zero is the bottom of the temperature scale, but physics says you can never quite get there. On the way down, matter turns superfluid, expels magnetic fields and piles...