Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
The water & sewage plants both have balances like that on display. The sewage plant balance is in perfect condition. The result of generations of us lab techs who took care of equipment.
Here is a better picture of my laboratory balance. It was made by F. Sartorius in Göttingen, Germany, probably around 1910. I bought it about 40 years ago.
It was made by F. Sartorius in Göttingen, Germany, probably around 1910.
Yes, and not only in school. My pocket-protector outfitted (he'd even wear them at the beach), engineer father (3 degrees from CalTech) made each of his kids learn the slide rule. He tested us on our skills too. One of my going-off-to-college gifts was a shiny new slide rule. I started college off studying literature/illustration/philosophy .
Calculators were a new thing when I was in school and still kind of pricey. We had a lot of poor kids who couldn't afford them, so the school banned them in favor of cheaper slide rules. Mine was plastic and I don't know what ever happened to it.
I'm pretty sure that the Post Versalog slide rule that we used was made of bamboo which is dimensionally stable regardless of heat or cold or humidity.
I used one a bit back in the 1950s Don't remember any of it today.
You didn't have to charge it.
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
.
