## Minkowski Spacetime

Minkowski Spacetime Minkowski spacetime (or Minkowski space) is a coordinate system devised by German mathematician Minkowski. The peculiar thing is...

## Special Relativity: Length Contraction

CAUTION: Read the following instructions to the end to get the result that the moving object appears to be constricted...

## Special Relativity: Time dilation

The meanings of the symbols used in this simulation are as follows. L = Distance that light travels in a...

## Bubble Pop

Icon Title Try popping the falling drops with your body. If your PC doesn’t have a camera, it won’t work....

## Why do we always have crystal ball covered?

Why do we always have crystal ball covered? While surfing the web, I came across a fascinating article on Twitter....

## ‘Moment of inertia’ of various shapes

You can click various shapes on the left and right sides of the screen. What are the characteristics of a...

## Evolution of the eye

Flagellate Hundreds of millions of years ago, light-sensing organelles arose inside the monad. Creatures with ‘photoreceptors’ are able to distinguish...

## Correction of Near-sightedness & Far-sightedness

Focusing The light started from the object must have arrived exactly at one point on the retina to see things...

## Equilibrium Constants

2●$$\rightleftharpoons$$● Chemical equilibrium In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present...

## Tuning Fork and Sound Wave

Tuning fork The tuning fork has a structure that combines the ends of two sticks. When the tuning fork is...

## Double-Slit Experiment

Double Slit Experiment The double-slit experiment is the observation of the pattern that a single wavelength of light creates after...