Compulsory school issue in the 1960s.

They worked OK (but not to 12 decimal places) 

A what?

Dad had one. I found it fascinating as a kid (mid-80s). He tried to show me how to use it a couple of times but I suspect I was too young.

I wonder where it is. Now I'm going to have to go look for it you know. The power of suggestion.

Use it on the ship for navigation

http://www.antiquark.com/sliderule/sim/n909es/virtual-n909-es.html

Rikkitic:

 

For me it was some time in the early 1960s. If  you never used one, or don't know what one is, you are too young for this thread.

 

 

 

THREAD HIJACK!

Seeing you think people are too young to partake in this thread if they do not know (or have never used) a slide rule, I think I should up the ante and mention an abacus - just to shorten the list of participants. Both were compulsory at my school. 

wasabi2k:

 

http://www.antiquark.com/sliderule/sim/n909es/virtual-n909-es.html

 

What is that monstrosity! 

I use a variation on a slide rule.

The Jeppesen CR-3 was essential for all the Navigation Exams I've had to sit.

Even today many years after training I still carry it in my pocket and use it daily

Slide rule - 1982

Abacus - yesterday... just for fun, and to keep my hand in:-)

I had a very senior colleague back in the '80s who used to do the company accounts using calculators, and then confirm results using his abacus. He was faster on the abacus than on the calculator!

Jase2985:

 

 

 

Even fixing your url, i still dont know what im looking at....

hio77:

 

Jase2985:

 

 

 

 

 

 

 

Even fixing your url, i still dont know what im looking at....

 

fixed it myself :P

its a speed/time/distance ruler for working out at x speed you will go x distance over x time

Jase2985:

 

fixed it myself :P

 

its a speed/time/distance ruler for working out at x speed you will go x distance over x time

 

b-but i has app for that? it doesn't involve a cat at all i promise.

hio77:

 

Jase2985:

 

fixed it myself :P

 

its a speed/time/distance ruler for working out at x speed you will go x distance over x time

 

 

 

 

b-but i has app for that? it doesn't involve a cat at all i promise.

 

 

 

cant use you phone if your on watch on the bridge, its a distraction

Jase2985:

 

hio77:

 

Jase2985:

 

fixed it myself :P

 

its a speed/time/distance ruler for working out at x speed you will go x distance over x time

 

 

 

 

b-but i has app for that? it doesn't involve a cat at all i promise.

 

 

 

 

cant use you phone if your on watch on the bridge, its a distraction

 

i cant find the orginal image for it, but using a phone on a bridge is totally fine!