... No. Down in the antipodes ... Sydney, to be precise. 25 degrees C, lovely and sunny, lots of beer. Wish you were here? However, tea breaks and...
41966
nucleon
nucleon2000
Jan 2, 2012 1:21 am
... $100 reward for info leading to one of these available for sale!!!...
41967
FRANCIS CARSON
traff11
Jan 2, 2012 2:06 am
I am not sure that this fits your bill, but PotteryBarn sells a NON FUNCTIONAL slide rule that is about 5' long. It is purely decorative, can hang on the...
41968
Dave Hartsel
dhartsel
Jan 3, 2012 1:04 am
Please change my email address in your contacts list to: dhartsel@... This goes into effect on Wed. Jan. 4, 2012 Thanks, Dave [Non-text portions...
41969
Robert Baer
oil4less
Jan 3, 2012 3:21 am
OK; I have a number of slide rules i would like to sell, as i really need the money. Is it appropriate to post what i have on this NG as for sale? Thanks, ...
41970
Clark
clarkmccoy2
Jan 3, 2012 2:40 pm
Got it. Thanks for the update. Clark McCoy Membership Secretary The Oughtred Society oughtredsociety@... 916 474-5286 From: sliderule@yahoogroups.com...
41971
Mike Markowski
mike_markowski
Jan 6, 2012 2:22 am
For Christmas my wife bought me the complete set of National Geographic magazines on dvd (for an amazingly cheap US $25). The ads are as much fun to read as...
41972
Carlos
curbinap
Jan 6, 2012 6:14 am
Good day! Seems this problem is analogous to two resistors x and y in parallel, where each resistor value is the time needed to dig a hole working separately...
41973
gabbardo@...
gabbardo
Jan 6, 2012 12:22 pm
Hi Carlos, You have a complete latin name, do you live in Portugal, Spain or Latin America? Best regards, João Roberto Gabardo ...
41974
Daveninvest
Jan 6, 2012 10:33 pm
There is another IBM advertisement which appeared in 1951 (I think) depicting that the 'latest' IBM electronic calculators were so fast it was like having an...
41975
Carlos
curbinap
Jan 6, 2012 10:34 pm
Hi, Joâo! You're right: my name is latin. I live in Mexico, in the city of Torreón, located in the north central part of the country. Best regards, Carlos...
41976
sliderulenut
Jan 6, 2012 10:35 pm
The same formula happens in optics where total focal length to compound lens is 1/f = 1/f1 + 1/f2, so a slide rule supporting such expressions can be used for...
41977
Carlos
curbinap
Jan 6, 2012 10:35 pm
Hi, Jim! Thank you very much for your kind words. Sometimes it's easier to understand the reasoning behind the mathematical solution to a problem if one tries...
41978
gabbardo@...
gabbardo
Jan 6, 2012 11:46 pm
Hi Carlos, very thanks for the answer. My name is also latin but composed by a first and mid portuguese names and the last is italian. I live in Brazil in the...
41979
MM
mmeged
Jan 7, 2012 2:00 pm
Hi I like to add another view to this problem. One pipe can fill a swimming poll in t1 hours. A second pipe can fill the same swimming poll in t2 hours. How...
41980
William Brohinsky
onlyocelot
Jan 7, 2012 10:56 pm
Interesting! This equation is given for the flow problem, but is, of course, the general equation for calculating parallel electrical resistances. It's general...
41981
Mike Markowski
mike_markowski
Jan 7, 2012 10:56 pm
This is an application of Kirchhoff's Laws (of voltage and current) to fluid systems. There is a short pdf of course notes on it at http://tinyurl.com/6ud4fkw...
41982
Rich Arland
k7sz_qrp
Jan 8, 2012 2:06 am
Hello Everyone: I am the "Funny New Guy" (FNG) and have just joined this list. I have a very small collection of SRs. In the early-mid 1960s I became...
41983
richlinda6751
Jan 8, 2012 2:44 am
Apparently, the "Sum of the Reciprocals" has many applications, optics, electronics, hydraulics, hole digging, and probably others. Who else has an example?...
41984
Not Here
robb360wa
Jan 8, 2012 2:45 am
I see these course books (4 books AND the slide rule) on Ebay frequently. ________________________________ Presently I am not really looking to add to my...
41985
Rich Arland
k7sz_qrp
Jan 8, 2012 3:41 am
OK....Thanks for the heads up. I will put a search out for CIE SR course and see what happens. 73 Rich Arland, K7SZ Bent Dipole Ranch, Dacula, GA "Cogito Ergo...
41986
Carlos
curbinap
Jan 8, 2012 7:17 am
Hi, Jim! This afternoon, while doing some cleaning outside my home, I started to think about this problem again. I think the reasoning to solve the problem is...
41987
Robert
rfwitt2000
Jan 8, 2012 11:16 pm
I also have a 515 with no manuals... The section of the books on the special scales is available in the files section of this group (...
41988
Maynard Wright
mngwright
Jan 8, 2012 11:16 pm
Mathematics is a unifying factor among many different physical systems. It is generally possible, for instance, to produce an electrical circuit that will ...
41989
Richard
k7sz_qrp
Jan 8, 2012 11:16 pm
Every time I wander around on e-bay looking at what is available in SRs, I see these outrageous prices for the Farber-Castell 2/83N Novo Duplex and 62/82N Novo...
41990
Mark Armbrust
cadet1620
Jan 8, 2012 11:55 pm
There is a guy who sells reproduction Picket 515 manuals on Ebay for $80! ...
41991
sliderulenut
Jan 8, 2012 11:55 pm
Rich, this topic has been discussed before. Do a search and you will find the related topics. Also, you can go to Rod's site for other search techniques for...
41992
Carlos
curbinap
Jan 9, 2012 4:52 am
Hi, Mike! I appreciate very much your kind words. The course notes whose link you provide in your message are really interesting; they contain many details...
41993
James Horne
jameshorne7
Jan 9, 2012 4:52 am
Hi. Probably due to the article published in Scientific American magazine, about 5 years ago; 'When Slide Rules Ruled'. 'Good article. The consensus in this...
41994
edeanbutler
Jan 9, 2012 12:27 pm
Go to the German eBay web site (ebay.de) and you will find all the F-C 2/83N's you would ever want, frequently for $50 or less. These slide rules were quite...
