Quantum, Relativity & Forces Explained | Pixelated Physics
7 articles
The BKT Transition: Vortices, Topology and a No...
In two dimensions, ordinary order is impossible, yet thin superfluid films still have a sharp transition. The answer is vortices that pair up and then unbind. Here is the BKT...
The BKT Transition: Vortices, Topology and a No...
In two dimensions, ordinary order is impossible, yet thin superfluid films still have a sharp transition. The answer is vortices that pair up and then unbind. Here is the BKT...
Bose Statistics: How a 1924 Paper Changed Counting
In 1924 a physicist in Dhaka rederived Planck's radiation law by counting light quanta in a new way. Einstein translated the paper, extended it to atoms, and predicted a new...
Bose Statistics: How a 1924 Paper Changed Counting
In 1924 a physicist in Dhaka rederived Planck's radiation law by counting light quanta in a new way. Einstein translated the paper, extended it to atoms, and predicted a new...
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...
The Ising Model Explained: How Tiny Arrows Expl...
The Ising model is the simplest picture of a magnet: a grid of arrows that can only point up or down, each wanting to match its neighbours. Heat scrambles them;...
The Ising Model Explained: How Tiny Arrows Expl...
The Ising model is the simplest picture of a magnet: a grid of arrows that can only point up or down, each wanting to match its neighbours. Heat scrambles them;...
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...