Lock

This is the sacred heart of the inside of a lock system. Not so much the piece of metal, more the numbers. They tell you what house the piece of metal is supposed to live in, what status it has and how many keys there are to open the door the piece of metal is placed in.

I've learned some new things today while I've been checking that each piece of metal is in its right place. To check this I've had to do things I've never had to do before, like taking the whole complicated, electric and two way lock to pieces, unscrew the piece of metal, called a lock cylinder, write the number down on a drawing of a house in the room where it sits and put it back together again. Then it's up to other people to find the keys for it. Not my business right now.

It's all part of checking so that a whole lock system is actually working so that you can say that "this building is locked". I never thought it was so complicated. Quite fun to learn and nice to be doing something where you can say "I've checked that lock now, I won't need to do it again, it's done". In my normal occupation as a teacher, I've never used that sentence at all. Nice to do something using a couple of simple tools, see a result and then say that it's done, and do something else. New perspectives.