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GeneralRe: almost bought a dvd Pin
dandy7223-Dec-18 5:45
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GeneralRe: almost bought a dvd Pin
W Balboos, GHB24-Dec-18 1:03
mveW Balboos, GHB24-Dec-18 1:03 
GeneralRe: almost bought a dvd Pin
Member 1073194424-Dec-18 8:05
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GeneralRe: almost bought a dvd Pin
Member 798912225-Dec-18 10:31
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QuestionWhat happened to engineering? Pin
CPallini23-Dec-18 0:47
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AnswerRe: What happened to engineering? Pin
OriginalGriff23-Dec-18 1:27
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Jörgen Andersson23-Dec-18 4:36
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GeneralRe: What happened to engineering? Pin
haughtonomous24-Dec-18 1:30
Memberhaughtonomous24-Dec-18 1:30 
"Twice the power only gives 3db more sound"...

That's a bit misleading. Twice the power gives twice the 'sound'. Sound pressure level has a logarithmic scale of measurement where +3db is a multiplying factor of 2. A logarithmic scale of measurement is used because the human ear is also logarithmic, automatically compensating for increases in sound pressure level so the perceived increase in loudness isn't linear.

An increase of 3db is a doubling of the SPL. It's twice as loud, although to the brain doesn't seem so, but that's a physiological phenomenon.
GeneralRe: What happened to engineering? Pin
Member 1073194424-Dec-18 8:07
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Jörgen Andersson24-Dec-18 8:24
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Martijn Smitshoek23-Dec-18 22:32
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GeneralRe: What happened to engineering? Pin
OriginalGriff23-Dec-18 22:35
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ProfessorDan24-Dec-18 4:34
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CPallini23-Dec-18 7:39
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GeneralRe: What happened to engineering? Pin
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GeneralRe: What happened to engineering? Pin
CPallini23-Dec-18 12:13
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dandy7223-Dec-18 2:57
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AnswerRe: What happened to engineering? Pin
Kornfeld Eliyahu Peter23-Dec-18 3:15
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PIEBALDconsult23-Dec-18 3:36
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Jörgen Andersson23-Dec-18 4:12
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lopatir23-Dec-18 4:34
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