Dead-Man switch in locomotives

I found this interesting…

Observatory – Absence of Chemicals Signals an Ant’s Death – NYTimes.com

Locomotives and other equipment often include a fail-safe mechanism known as a dead-man switch. If the operator lets go of the engine throttle for more than a prescribed amount of time, for example, the locomotive will shut down — the assumption being that the operator is dead (or otherwise incapacitated) and there’s a risk of a runaway train.

Advertisements

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

%d bloggers like this: