not artificial

this is a "brain cactus" from Arizona

clocks 2

2 more clocks :)

Explanation of the second clock's numerals:

1 Legendre's constant

2 "An infinite number of mathematicians..."

3 A Unicode character as a HTML entity

4 Modular arithmetic

5 The Golden Mean reworked a little

6 Three Factorial (3*2*1)

7 6.99999.. Though a different number than 7, still equals 7

8 Graphical representation of Binary code

9 An example of a base-4 number

10 A Binomial Coefficient

11 An example of Hexadecimal encoding

12 The cube root is the inverse of 12^3

clocks of all kinds

a couple of very cool clocks. thx tina!