Circular Wave Animation

by SoylentGreen on Wikipedia

Circular Waves Interferences and Difraction

Circle wave from a point source
Interference between two point waves
 
Interference of the circle wave with
the wave reflected from the wall
Diffraction of the circle wave on narrow slit

space-time map for our observable universe

This is a map of the space-time for our observable universe. It shows two of three spatial dimensions and the time.

George F. Smoot ::: Cosmologist, Lawrence Berkeley National Laboratory; Recipient, The Nobel Prize For Physics 2006; Coauthor, Wrinkles in Time

The true size of Africa

by Kai Krause: true-size-of-africa.jpg

telegraph network 1901

Edge-Serpentine-MapsGallery