Special Relativity in 14 Easy (Hyper)lessons

The
speed of light is constant

Stationary
and moving "light clocks"

Moving
clocks tick slowly

Quantitative
description of time dilation

Two
ways to measure the length of a moving object

Time
dilation
Lorentz
contraction

Definition
of an event: measurements specify intervals between events

Constant
speed of light
nonsimultaneity
of events

Quantitative
description of nonsimultaneity

Lorentz
transformations

Relativistic
train/tunnel "paradox"

Paradox
explained

Can
a massive object exceed the speed of light?

Why
there are magnetic fields
Here's a very challenging
problem which illustrates how some General Relativistic effects
can be derived from Special Relativity and the Principle of Equivalence.
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