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From: Bill Graham on 20 Nov 2009 19:03 "Bill Graham" <weg9(a)comcast.net> wrote in message news:ZtKdncUyScr6sZrWnZ2dnUVZ_j-dnZ2d(a)giganews.com... > > "tony cooper" <tony_cooper213(a)earthlink.net> wrote in message > news:8dt6g599nmtt0kjso67q80b9f9s6564dds(a)4ax.com... >> On Tue, 17 Nov 2009 19:54:33 -0800, "Bill Graham" <weg9(a)comcast.net> >> wrote: >> >>>Not to disagree, but I am annoyed about the different Ounces.....If you >>>are >>>calculating the price of Gold, you have to use some other ounce than the >>>standard one used in grocery stores.....Exactly why they do this is not >>>at >>>all clear to me, and it is very annoying...... >> >> Precious metals and gems are measured in troy ounces. I don't know >> why it confuses you unless you are trying to weigh gold on a kitchen >> scale. You don't calculate the price of gold. No calculation is >> required since the price per troy ounce is given. > > Except for snorkles.....Snorkels are measured in glumph ounces. There is > nothing confusing about this, unless you try to weigh a snorkle on a > kitchen scale. You don't calculate the price of snorkles. No calculation > is required, since the price per glumph ounce is given. Now, with widgets, > it's a different story altogether. Widgets are measured in klamp > ounces.....Just be sure you never try to weigh a widget on a kitchen > scale...... You see that huge warehouse I have in my back yard? It is full of scales. I have a different scale for every item I may need to weigh during the average lifetime.......Thank God I am 74 years old already......My last warehouse is almost full now. I don't want to have to buy another one before I die. 16 warehouses full of scales is enough.......
From: Bill Graham on 20 Nov 2009 20:34 "Elliott Roper" <nospam(a)yrl.co.uk> wrote in message news:211120090022284678%nospam(a)yrl.co.uk... >> Yes. When slide rules disappeared, knowledge of their principal of >> operation >> disappeared with them. > It took a bit longer to explain enough about logs for > her to get how it works. When she's 15, ask her again how they work......Unless she's a math major, she won't even know what logs are......
From: tony cooper on 20 Nov 2009 22:09 On Fri, 20 Nov 2009 17:31:09 -0800, Savageduck <savageduck1@{REMOVESPAM}me.com> wrote: >Along with 2 Faber Castell slide rules, I still have my old book of >log/antilog and trig tables. Use the word "mantissa" today, and see >what sort of baffled looks you will get from kids. What? Spanish ladies don't wear veils today? -- Tony Cooper - Orlando, Florida
From: David Nebenzahl on 20 Nov 2009 22:38 On 11/20/2009 6:08 PM J. Clarke spake thus: > Savageduck wrote: > >> Along with 2 Faber Castell slide rules, I still have my old book of >> log/antilog and trig tables. Use the word "mantissa" today, and see >> what sort of baffled looks you will get from kids. > > I picked up a Deci-Lon when they were on sale for 5 bucks at the OSU > bookstore. Never had occasion to actually use it but it's fun to play with. > > By the way, with regard to log tables, do you have the Schaums Mathematical > Handbook? For $12.95 it's an incredible bargain--one of my Physics > professors turned me on to it--I've worn out two of them. Not that book, but I have my dad's copy of Burington's /Handbook of Mathematical Tables and Formulas/, reprinted 1941. Usual stuff: logs, trig tables, lotsa formulae. -- I am a Canadian who was born and raised in The Netherlands. I live on Planet Earth on a spot of land called Canada. We have noisy neighbours. - harvested from Usenet
From: Savageduck on 20 Nov 2009 23:27
On 2009-11-20 19:09:55 -0800, tony cooper <tony_cooper213(a)earthlink.net> said: > On Fri, 20 Nov 2009 17:31:09 -0800, Savageduck > <savageduck1@{REMOVESPAM}me.com> wrote: > >> Along with 2 Faber Castell slide rules, I still have my old book of >> log/antilog and trig tables. Use the word "mantissa" today, and see >> what sort of baffled looks you will get from kids. > > What? Spanish ladies don't wear veils today? Forget Spanish ladies and veils, think in terms of significand. Traditional usage of "mantissa" regarding logarithms refers to the fractional part of a logarithm. -- Regards, Savageduck |