"hello world" welcome back to war, thursday, 08.30 am! So...what the world doens't know..is the story of this switch...the reed switch...there are 3 fantastic stories, of 2 robberings and one espionage case...for "convenient" resons never told...what does this switch disables on a very sophiscated security lock?..we are talking about a encoding of 5 turns on the wheel, with 3 decimals code each turn..

https://www.explainthatstuff.com/howreedswitcheswork.html
https://www.explainthatstuff.com/howreedswitcheswork.html

EXPLAINTHATSTUFF.COM

How reed switches work (magnetically operated switches)

An easy-to-understand explanation of how reed switches are triggered by magnets and a look at some typical uses.