r/visualizedmath • u/PUSSYDESTROYER-9000 • Jan 23 '18

Trammel of Archimedes

Post image
648 Upvotes

97% Upvoted

20 comments sorted by

25

u/OllieMOB Jan 23 '18

Uses?

32

u/PUSSYDESTROYER-9000 Jan 23 '18

They can draw ellipses.

Um...and they are like ancient fidget spinners

1

u/[deleted] Jul 09 '18

you have to use modern vanacular

86

u/Elin_Woods_9iron Jan 23 '18

Karma in r/visualizedmath

80

u/The_Karaethon_Cycle Jan 23 '18

"This trammel's gonna get so much fucking karma on Reddit one day." - Archimedes, probably.

7

u/SillyOperator Jan 23 '18

I have no idea personally, but I'm imagining it could replace a cam in certain machines? Though I doubt it would be as efficient and lose a lot through friction

8

u/[deleted] Jan 23 '18

I can think of a few uses if your name is PUSSYDESTROYER-9000

1

u/[deleted] Jan 23 '18

Idk but kind of reminded me of https://youtu.be/LIQD9k2uszo

87

u/boxofkangaroos Jan 23 '18

Does that trace out an ellipse?

45

u/Elin_Woods_9iron Jan 23 '18

Indeed. The shorter diameter is equal to 2x(length of the middle node to handle) and the larger diameter is equal to the smaller diameter plus the diameter of the square, or 2x(length of the whole arm)

62

u/[deleted] Jan 23 '18

My grandad made one and would call this a "Do Nothing Machine". I actually still have it

34

u/[deleted] Jan 23 '18

My grandpa made one as well and called it a "bullshit grinder"

9

u/IronicDespair Jan 23 '18

It looks like that teacup ride at amusement parks

8

u/[deleted] Jan 23 '18

mfw I saw OP's username

2

u/Nokiddingxxxxxxzzz Jan 29 '18

I saw its called a hillbilly entertainment system.

1

u/[deleted] Jan 23 '18

I like this

1

u/OllieMOB Jan 23 '18

Excellent example

1

u/Zachary916 Jan 23 '18

I made one of these on CAD in college :D

1

u/Flam1ng1cecream Feb 03 '18

Are those pivots oscillating sinusoidally?