View Full Version : Audi find secret to universe
Badly Shaved Monkey
1st June 2009, 07:53 AM
Just heard this in a TV advert
"When a car brakes, the energy it creates is lost..."
What they have is a system that recovers some energy on braking. I doubt they have actually created energy.
Badly Shaved Monkey
1st June 2009, 07:54 AM
Ah, someone else has spotted it (http://www.mbclub.co.uk/forums/ot-off-topic-forums/70237-audi-recuperation-advertisment-bad-science.html) as well.
shadron
1st June 2009, 08:37 AM
Ah, someone else has spotted it (http://www.mbclub.co.uk/forums/ot-off-topic-forums/70237-audi-recuperation-advertisment-bad-science.html) as well.
Yeah, but there sure seems to be lots of confusion there about what energy is, and the fact that it never created, but just converted to one form or another.
casebro
1st June 2009, 10:02 AM
Sounds like a bit of scientific pedantism on the part of the above posters. You ought to be able understand plain English enough to realize that Audi said "energy wasted". I suppose they are using a regenerative braking system, good at reclaiming about 15% of the fuel 'wasted' by slowing down.
By the way BSM, the "find" in your title ought to be 'finds'.
RoboTimbo
1st June 2009, 10:06 AM
Audi find secret to universe
It isn't 3 after all (http://forums.randi.org/showthread.php?t=140655)?
Badly Shaved Monkey
1st June 2009, 10:31 AM
By the way BSM, the "find" in your title ought to be 'finds'.
Oops.
progressquest
1st June 2009, 11:20 AM
It isn't 3 after all (http://forums.randi.org/showthread.php?t=140655)?
I thought we landed on 5 for the secret.
GodMark2
1st June 2009, 03:17 PM
By the way BSM, the "find" in your title ought to be 'finds'.
English speakers around the world have yet to decide upon whether companies should be treated as singular or plural nouns, so for much of the world, "finds" would be incorrect.
Separated by a common tongue.
Dr. Trintignant
1st June 2009, 03:31 PM
Sounds like a bit of scientific pedantism on the part of the above posters.
Yeah. It's perfectly reasonable here to use "lost" as a synonym for "unrecoverable". Braking energy is normally converted to heat, which is indeed unrecoverable in most circumstances. One might even say that because it's redundant to say that energy can never be destroyed, adjectives like "lost" should always be expected to refer to recoverable energy.
- Dr. Trintignant
Badly Shaved Monkey
2nd June 2009, 12:55 AM
Yeah. It's perfectly reasonable here to use "lost" as a synonym for "unrecoverable". Braking energy is normally converted to heat, which is indeed unrecoverable in most circumstances. One might even say that because it's redundant to say that energy can never be destroyed, adjectives like "lost" should always be expected to refer to recoverable energy.
- Dr. Trintignant
It was the "creates" I was highlighting. I can accept "lost": a thing mislaid is not a thing destroyed.
Dave Rogers
2nd June 2009, 02:29 AM
If they'd just said "When a car brakes, energy is lost," personally I'd give them a pass. Adding words to a simple and correct sentence to make it incorrect and slightly more pretentious, though, is what advertising agencies do best.
Dave
CNY_Dave
2nd June 2009, 04:55 PM
It's all in how you define the system.
If the car is the system, any energy (potential or kinetic) converted to heat is lost to the system.
It's all about the system definition, always is.
Dave
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