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GeneralRe: Old age shows its mark... Pin
Charles Programmer1-Feb-19 5:15
memberCharles Programmer1-Feb-19 5:15 
GeneralRe: Old age shows its mark... Pin
PIEBALDconsult31-Jan-19 17:44
protectorPIEBALDconsult31-Jan-19 17:44 
GeneralRe: Old age shows its mark... Pin
V.31-Jan-19 19:59
professionalV.31-Jan-19 19:59 
GeneralRe: Old age shows its mark... Pin
Marco Bertschi31-Jan-19 21:44
protectorMarco Bertschi31-Jan-19 21:44 
GeneralRe: Old age shows its mark... Pin
Retired201731-Jan-19 23:22
memberRetired201731-Jan-19 23:22 
GeneralRe: Old age shows its mark... Pin
Member 79891221-Feb-19 0:58
memberMember 79891221-Feb-19 0:58 
GeneralRe: Old age shows its mark... Pin
MKJCP1-Feb-19 1:53
memberMKJCP1-Feb-19 1:53 
GeneralRe: Old age shows its mark... Pin
Member 79891221-Feb-19 2:32
memberMember 79891221-Feb-19 2:32 
And in the grey zone between math and physics:

I spent my high school senior year in the US as an exchange student. The physics teacher in my Norwegian high school had stressed that one good reason for using 'v' as a symbol for speed and 'u' as a symbol for voltage is to make it simpler to do complex calcuations as "pure math" without being confused by any physical interpretation of the (partial) expressions.

My US physics teacher stressed exact the opposite view: We use 'v' for velocity to make you concious of the meaning of this value within a complex formula! ... He was surprised that we did not use the initial letters of the Norwegian words for those concepts. How can you know what you are calculating, if you ignore the semantics?

I do understand his reasoning, but it goes only so far. At some point, you must detach the calculations from the physical interpretation of each value. To take one example: In electronics, I learned to calculate filters, handling both the values and the units, and saw it coming out as a value in seconds (or more commonly: microseconds) describing the filter. I know how I got there, but it never got under my skin how the value ended up as a time. I cannot associate a filter with a time span, the way I can see what a car's speed or mass represents. I can only handle it by treating it as pure math, and learn that the resulting value comes out as microseconds, without grokking it.
GeneralRe: Old age shows its mark... Pin
MKJCP1-Feb-19 2:42
memberMKJCP1-Feb-19 2:42 
GeneralRe: Old age shows its mark... Pin
Member 79891221-Feb-19 3:32
memberMember 79891221-Feb-19 3:32 
GeneralRe: Old age shows its mark... Pin
Bruce Patin1-Feb-19 4:49
memberBruce Patin1-Feb-19 4:49 
GeneralRe: Old age shows its mark... Pin
Overtkill1-Feb-19 5:06
memberOvertkill1-Feb-19 5:06 
GeneralRe: Old age shows its mark... Pin
Dr.Walt Fair, PE1-Feb-19 7:03
professionalDr.Walt Fair, PE1-Feb-19 7:03 
GeneralRe: Old age shows its mark... Pin
Dr.Walt Fair, PE1-Feb-19 8:30
professionalDr.Walt Fair, PE1-Feb-19 8:30 
GeneralRe: Old age shows its mark... Pin
jschell2-Feb-19 7:12
memberjschell2-Feb-19 7:12 
GeneralAt the risk of showing my ignorance... Pin
dandy7231-Jan-19 10:11
memberdandy7231-Jan-19 10:11 
GeneralRe: At the risk of showing my ignorance... Pin
abmv31-Jan-19 16:43
professionalabmv31-Jan-19 16:43 
GeneralRe: At the risk of showing my ignorance... Pin
dandy721-Feb-19 7:10
memberdandy721-Feb-19 7:10 
GeneralRe: At the risk of showing my ignorance... Pin
abmv1-Feb-19 18:12
professionalabmv1-Feb-19 18:12 
GeneralRe: At the risk of showing my ignorance... Pin
dandy722-Feb-19 2:11
memberdandy722-Feb-19 2:11 
GeneralRe: At the risk of showing my ignorance... Pin
Fueled By Caffeine31-Jan-19 22:16
memberFueled By Caffeine31-Jan-19 22:16 
GeneralRe: At the risk of showing my ignorance... Pin
dandy721-Feb-19 7:11
memberdandy721-Feb-19 7:11 
GeneralRe: At the risk of showing my ignorance... Pin
Dr.Walt Fair, PE1-Feb-19 7:05
professionalDr.Walt Fair, PE1-Feb-19 7:05 
GeneralRe: At the risk of showing my ignorance... Pin
dandy721-Feb-19 7:13
memberdandy721-Feb-19 7:13 
GeneralRe: At the risk of showing my ignorance... Pin
Dr.Walt Fair, PE1-Feb-19 8:33
professionalDr.Walt Fair, PE1-Feb-19 8:33 

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