Thursday, January 27, 2011

It's a ... what is it?

I've had this for ages and can't even remember where it came from. It comes in a cardboard pocket which you see here:

And slides out the side.

It opens like a little notebook to reveal...

This very fascinating face.

A stylus sits in a side pocket.

And is used in these slots.

Like here where I started where the 5 is and pushed down. And now 5 shows up at the top row.

To clear all the numbers this bar slides up.

And this is printed on the side.

It seems quite simple...and yet I can't figure out how to make it work as an "adding machine." Of course I'm rubbish at anything even remotely mathematically related so that could explain a lot...

But it's kinda neat, right? I like it anyway.

1 comment:

Megan said...

Huh! I have no idea how that thing works, but it is really cool :).