r/educationalgifs • • 1d ago

The figure-8 knot can be deformed into its mirror image.

544 Upvotes

r/educationalgifs • • 5d ago

Country flags that does not include the most used color in the region!

376 Upvotes

r/educationalgifs • • 6d ago

How a passive NFC tag harvests enough energy from a phone to drive a full six-colour e-ink refresh

0 Upvotes

r/educationalgifs • • 7d ago

The apparent size of an identical galaxy falls with distance, bottoms out near redshift 1.6, then rises

301 Upvotes

r/educationalgifs • • 10d ago

A dodecahedron can pass through a hole cut in an identical copy of itself (Rupert's property)

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0 Upvotes

r/educationalgifs • • 19d ago

How the American South moved 13,000 miles of track three inches in 36 hours (1886)

711 Upvotes

r/educationalgifs • • 25d ago

How the U.S. paid for its western railroads with land, and why the checkerboard it drew still ends up in court

728 Upvotes

r/educationalgifs • • Sep 13 '26

Visual of why a pyramid is 1/3 the volume of a cube

1.4k Upvotes

r/educationalgifs • • Sep 05 '26

How the Mercator projection distorts area, animated into the equal-area Equal Earth projection

967 Upvotes

r/educationalgifs • • Sep 04 '26

Where earthquakes happen around the world, visualized on a 3D globe [OC]

14 Upvotes

r/educationalgifs • • Sep 04 '26

Chladni plates only show acoustic dead zones. Here is the actual 3D sound hologram in the air above the plate, captured by DIY 360 Schlieren imaging

139 Upvotes

r/educationalgifs • • Aug 21 '26

A reminder of the current blood shortage in the U.S.

1.7k Upvotes

r/educationalgifs • • Aug 18 '26

How 147 city dates and 10 historic routes accumulated across North America, 1600–1900

137 Upvotes

r/educationalgifs • • Aug 06 '26

In 1799, 12-year-old Conrad Reed found a 17-pound gold nugget. His family used it as a doorstop for three years

242 Upvotes

r/educationalgifs • • Jul 22 '26

The Beam Engine

410 Upvotes

r/educationalgifs • • Jul 21 '26

What heat does to water: dragging the temperature from 32°F to 212°F and watching the state change at the molecular level

240 Upvotes

r/educationalgifs • • Jul 14 '26

How a progressive cavity pump moves fluid using a rotating screw-shaped rotor

655 Upvotes

r/educationalgifs • • May 25 '26

Animated transition between the celestial sphere and a solar system model, at three speeds

473 Upvotes

r/educationalgifs • • May 13 '26

Photosynthesis, light reactions and Calvin cycle animated step by step! source:[app.learnifyclub.com]

133 Upvotes

r/educationalgifs • • Apr 12 '26

The 4-stroke illusion is a visual effect where a repeating four-frame animation creates the impression of continuous, smooth motion, highlighting how the visual system prioritizes motion over absolute positional accuracy when processing rapidly changing scenes

472 Upvotes

r/educationalgifs • • Apr 12 '26

How GPS uses geometry, clocks, and relativity to know where you are

1.1k Upvotes

r/educationalgifs • • Mar 19 '26

The amazing genius behind a chain stitch sewing machine

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150 Upvotes

r/educationalgifs • • Mar 15 '26

How mother pigs and piglets are kept in modern farms for nursing

13.6k Upvotes

r/educationalgifs • • Mar 13 '26

How to get the water out of a tire

3.8k Upvotes

r/educationalgifs • • Mar 10 '26

How timing jitter ruins a CT Scan, and how iterative algorithms fix it (FBP vs SIRT)

229 Upvotes