12:41

Geared icosahedron net

04:35

Half of a scissor linkage

03:32

Orbiform d4: Constant width dice

09:05

Wild knots

10:17

Six axis racks

08:03

Real-life fractal tree zoom

05:16

Slide-glide cyclides

11:34

Recursive racks

11:36

Using topology to close a rubber band bracelet

05:09

Lost in the Multiverse Library with @TomRocksMaths

05:54

The Ames room optical illusion

09:16

Real-life fractal zoom

07:01

Screw/screw gearing

04:38

Geared cube net

33:00

Knotty Analog Oscilloscope Art

04:33

Scissors NOT gate

03:29

Gear cube and Brain gear

04:12

Knots in disguise

06:08

Helix cube puzzle

04:27

Impossible triangles

03:50

Genus two holonomy

07:40

Kinetic cyclic scissors

10:08

Cannon-Thurston maps: naturally occurring space-filling curves

06:42

The pi/4 polyhedron

03:41

Why don't Rubik's cubes fall apart?

04:11

From Sphericons to Countdown dice

03:02

Grabber mechanism

05:42

Continental drift puzzle

04:32

Puzzling degrees of freedom

02:23

More circles on a sphere of cubes

04:09

Where do these circles come from?

00:33

Holonomy mazes without a maze

02:18

A better d6 than the cube?

04:07

Dodecahedral holonomy maze

07:06

Mathemalchemy build

00:38

Glow-in-the-dark d120

05:02

Hyperbolic 29 puzzle

06:23

(Octahedral) holonomy maze

04:18

Mathemalchemy

06:29

Why the 14-15 puzzle is impossible, and how to solve it anyway

07:59

15 + 4 puzzle

05:23

Skew dice set

04:40

dLX

03:45

Rook cubes (unsuccessful prototype)

01:45

Coiled 15 puzzle

00:37

d14

13:39

Cohomology fractals

06:05

Cohomology fractal zoom

01:02

Slant d6

07:02

Braiding gears

00:49

Gripping gears with pass-through holes

03:30

Checking the overs and unders of a knot on the London Underground

04:34

Illustrating Geometry and Topology at ICERM

01:55

Gripping gears

15:34

Bridges 2019 talk - Geared jitterbugs

01:32

Skew d8

00:37

Translucent amber dice

10:39

How many holes does a straw have?

03:29

Geared Cuboctahedral Jitterbug

03:01

Non-euclidean virtual reality using ray marching