Machine with Concrete

Machine with Concrete is a gear train consisting of twelve pairs of worms and gears, each of which reduces the rotational velocity of the system by 1/50. The input shaft is constantly driven at 200 rpm, and the output shaft thus turns at (1/50)12 of that speed, at which rate, Ganson writes, “it will take well over two trillion years before the final gear makes but one turn.”

The punchline, of course, is that the final gear is embedded in a block of solid concrete.

Link.

Tagged , , , , ,

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 179 other followers

%d bloggers like this: