12:20

Pocket Sundial Retorts!

08:47

The Sunwatch! 1920s pocket sundial

09:27

Binary number system from 1617 (Napier's Location Numerals) Review / HowTo

06:39

1984 (Math Props)

00:50

Corona City! Groton NY and the Corona Club

10:01

1600s binary multiplier (Napier's Location Arithmetic) Review / HowTo

26:46

The configuration space of at-most n points on the circle

03:44

Terminator: The Sarah Connor Chronicles (Math Props)

06:45

The most unnecessary election recount ever

01:37

3D Printable 1:1 scale SOLID CURTA

24:18

Thoughts on configurations of at most n points

20:28

A higher homotopy group for digital images

01:16:39

The Curta Calculator (full documentary) Review / How To

06:56

Finale: Why the Curta? 12 Days of Curtsmas 12

07:41

Curta Mailbag! 12 Days of Curtsmas 11

09:15

Curta Variations & Marketing. 12 Days of Curtsmas 10

07:46

Square roots on the Curta. 12 Days of Curtsmas 9

06:38

Rallying with the Curta. 12 Days of Curtsmas 8

05:28

Math Props: the Curta Calculator in Gibson's Pattern Recognition

07:02

Division on the Curta. 12 Days of Curtsmas 7

08:08

Curt Herzstark's story. 12 Days of Curtsmas 5

06:35

Design of the Curta. 12 Days of Curtsmas 4

05:12

The Stepped Drum Mechanism. 12 Days of Curtsmas 3

05:01

Multiplication on the Curta. 12 Days of Curtsmas 2

06:03

Addition and subtraction on the Curta. 12 Days of Curtsmas 1

41:16

The second homotopy group of the sphere: π₂(S²) in classical and digital topology

00:39

Curtsmas mailbag! Please send your Curtsmas wishes.

00:40

12 Days of Curtsmas trailer! Coming in December

10:25

National Cash Register 1925 & 1953 Review / HowTo

10:41

Tempscribe winding thermometer Review / HowTo

06:27

Son of the MK Area Calculator

09:14

1920s Radial Planimeter Review / HowTo

11:28

Writing a math research paper: start to finish!

00:38

20K

11:33

1840s "Universal Calculator" Review / HowTo Lalanne's Abaque

09:22

Numberaid the American Abacus! Review / HowTo

03:27

L.A. Noire (Math Props)

03:30

The Prisoner: Arrival (Math Props)

06:17

W10 Wind Speed Indicator Review / HowTo

49:31

Bob Brown's n-valued Nielsen theory, and a bit more

07:14

ACU-ARC Ruler Review / HowTo

11:14

Walther made a calculator! Walther WSR-160 Review / HowTo

06:04

D & H Color Rule Review / HowTo

07:56

Multiple-tally Denominator Review / HowTo

03:12

Star Trek: Picard (Math Props)

03:23

Seinfeld (Math Props)

10:58

MK area calculator Review / HowTo

10:38

Inca counting boards and the table yupana

02:33

Spring 2023 courses! (on my other channel)

03:24

Thrift Shop (Math Props)

03:21

Family Guy (Math Props)

10:22

Hexadecimal mechanical calculator from the 1970s

03:36

The Name Of The Rose (Math Props e10)

09:08

Lost area-measuring tool

41:33

Instruments for length and area: dots, lines, and little wheels

03:12

The Wire s2e02 (Math Props e09)

03:20

Cowboy Bebop (Math Props e08)

42:55

Classical and Digital Topological Groups

00:49

Machines (mostly Monroe) available NOW in CT

03:31

Ms Marvel (Math Props e07)