Quantum, Relativity & Forces Explained | Pixelated Physics

10 articles

Pixel-art glowing source sending two beams to two distant ornate detectors, illustrating a Bell test on entangled particles

Bell’s Theorem Explained: How We Know Quantum W...

Einstein suspected quantum mechanics was missing hidden instructions. In 1964 John Bell found a way to test that idea, and experiments from 1972 to 2015 settled it against local hidden...

Bell’s Theorem Explained: How We Know Quantum W...

Einstein suspected quantum mechanics was missing hidden instructions. In 1964 John Bell found a way to test that idea, and experiments from 1972 to 2015 settled it against local hidden...

Pixel-art row of phase-space cells holding unlabelled cyan, violet and lime quanta, with several sharing one cell, titled Particle guy, major stats

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...

Cold atom cloud merging into a single glowing wave in a laser trap

Bose and Einstein: What Is a Bose–Einstein Cond...

A Bose–Einstein condensate is a dilute gas of bosons cooled until a macroscopic number share the same quantum ground state. Bose’s 1924 photon statistics and Einstein’s extension set the idea;...

Bose and Einstein: What Is a Bose–Einstein Cond...

A Bose–Einstein condensate is a dilute gas of bosons cooled until a macroscopic number share the same quantum ground state. Bose’s 1924 photon statistics and Einstein’s extension set the idea;...

A golden foreground galaxy encircled by a thin blue Einstein ring of lensed light from a galaxy directly behind it

How Does Gravity Bend Light? Einstein Rings and...

Gravity bends light because spacetime is curved. The 1919 eclipse measured the Sun’s deflection; Einstein’s 1936 note foresaw stellar lenses; modern telescopes image Einstein rings. Here is the physics without...

How Does Gravity Bend Light? Einstein Rings and...

Gravity bends light because spacetime is curved. The 1919 eclipse measured the Sun’s deflection; Einstein’s 1936 note foresaw stellar lenses; modern telescopes image Einstein rings. Here is the physics without...

A satellite with solar panels orbiting above the night-side Earth, sending signal beams down to glowing city lights at sunrise

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...

A starship with blazing engines racing toward a burst of blue-white light it can never overtake

Why Is the Speed of Light the Limit? Relativity...

Nothing with mass can reach the speed of light, and no signal can beat it. Here is why relativity says so, how muons and GPS satellites prove it every day,...

Why Is the Speed of Light the Limit? Relativity...

Nothing with mass can reach the speed of light, and no signal can beat it. Here is why relativity says so, how muons and GPS satellites prove it every day,...