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157 posts

Master Geek


  #1541379 24-Apr-2016 22:28
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Probably around 1973, just before I got an HP-35. Great thing with the HP - you didn't have to worry about the powers of 10 any more...


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  #1541531 25-Apr-2016 10:55
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Slide rule coffee mug  smile

 

 





Sideface


 
 
 
 


mdf

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  #1541537 25-Apr-2016 11:02
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Sideface:

 

Slide rule coffee mug  smile

 

 

 

 

But Egon, you said crossing the streams was bad!

 

We may have reached peak off-topic-ness.


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  #1541658 25-Apr-2016 13:55
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colinuu:

 

Probably around 1973, just before I got an HP-35. Great thing with the HP - you didn't have to worry about the powers of 10 any more...

 

 

 

 

Funny - almost identical to me!  Bought a second-hand HP35 in my first year at Otago (1975) - from memory it set me back around $100!  Always remember a mate buying one of the very new HP65 programmable calculators around the same time (can't remember whether it was 1975 or 1976 once he was in med school!) - now they were an expensive replacement for the old slide rule!






"It is useless to attempt to reason a man out of what he was never reasoned into."
— most commonly attributed to Jonathan Swift, author/theologian

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Geek


  #1541676 25-Apr-2016 14:22
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Hmmmm... probably about early 1970s. At the research laboratory I worked in we did have some Facit calculating machines, but most people used a slide rule. Now, I had (and still have, what offers??) an Otis King calculator, a circular slide rule (like the 'coffee mug') that with care could be worked to 4 significant figures. I was often asked to do calculations beyond the capacity of a straight slide rule.


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  #1541684 25-Apr-2016 14:45
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Sideface:

 

Slide rule coffee mug  smile

 

 

 

 

 

 

Want one of those! Uber cool.





Sometimes I just sit and think. Other times I just sit.


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  #1541689 25-Apr-2016 14:53
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eracode:

 

Sideface:

 

Slide rule coffee mug  smile

 

 

 

 

Want one of those! Uber cool.

 

 

Vintage Antique Slide Rule Close-Up Coffee Mug from Zazzle USD $17.85







Sideface


 
 
 
 


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  #1541707 25-Apr-2016 16:01
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About 1975  before I bought a calculator..





Regards,

Old3eyes


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Master Geek


  #1541831 25-Apr-2016 20:26
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colinuu:

 

Probably around 1973, just before I got an HP-35. Great thing with the HP - you didn't have to worry about the powers of 10 any more...

 

 

And the HP-35 was soon replaced by the HP-45. This was truly the engineering students friend. Amongst the enhancements were buttons for R->P and P->R conversions. Genius...


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  #1541963 26-Apr-2016 09:36
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I bought one on TradeMe a couple of years ago just out of nostalgia. Now I use it nearly every day.  It gets a good laugh from older people who come into my office (consulting engineer) and it kinda looks good on the desk.  But it's more tactile than a calculator and still can't be beaten for quick and nasty fixed-factor multiplication.





McLean


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  #1541964 26-Apr-2016 09:41
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I use them a fair amount (Being in the coastguard). We use them for chart work.

 

 

 

 


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  #1542038 26-Apr-2016 11:04
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Are paper charts still preferred to electronic in the CG?

 

Sounddude:

 

I use them a fair amount (Being in the coastguard). We use them for chart work.

 

 

 





Mike

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  #1544907 1-May-2016 16:12
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Sideface


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