Throwback Thursday

[aunty dive]

 

[StandOnIt]

 

[rd45usa]

 

[rd45usa]

How parts were drawn back in the day, but after using t-squares.

 

[rd45usa]

 

[Greg]

Bulldozer

 

[Charlie Spencer]

View attachment 82166

We had to learn how to use one of those in high school for a physics class. By the time I started college, pocket calculators had replaced them. I wonder how many people under 60 know what one is; I'm sure they've never seen one.

 

[aunty dive]

We had to learn how to use one of those in high school for a physics class. By the time I started college, pocket calculators had replaced them. I wonder how many people under 60 know what one is; I'm sure they've never seen one.

I can almost hear Junior Earnhardt screaming
SLIDE RULE!!!!