fayescarlet: aibohphobia: mr-egbutt: thefurrynerd: cutlerish: thelynnfiles: logically-devonian: How the Geneva Drive (the mechanical step that makes the second hand on a clock work by turning constant rotation into intermittent motion) works.
tags: #1,
from: https://catalystis.tumblr.com/post/133601675118
Advertisments
- Pin Porn
- Pay Porn
- random video #1
- random video #2
- random video #3
- random video #4
- random video #5
- random video #6
- random video #7
- random video #8
- random video #9
- random video #10