Sticking Lissajous figures
Lissajous figures are trajectories traced by a point that simultaneously performs two harmonic oscillations in two mutually perpendicular directions.
Fragments of history: interesting and rare retro photos of
Cool gifs. Issue 2676
Curious photos from the past of Great Britain (21 photos)
Photos that will make any perfectionist smile with
Unique historical footage that will take you back in time
30 testimonies of what the world looked like many years ago
Tench: About the Special Healing Mucus of This Fish (5
Tactical equipment for a cat: a basic combat kit that every
35 cases when people encountered frightening creations of
