Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 3   >   >>
Duane Benson
User Rank
Blogger
re: The uncertainty principle
Duane Benson   3/28/2011 2:37:47 AM
NO RATINGS
Uncertainty in design is inversely proportional to time and money spent the original design as well as the design of the backup systems. There is an included factor that prevents uncertainty from actually reaching zero. In theory, the more mission critical / life-critical a system is, the more time and money it gets put on redundancy and back-up systems. Reality doesn't always match up with theory in this case either though.

ReneCardenas
User Rank
Rookie
re: The uncertainty principle
ReneCardenas   3/28/2011 12:12:24 AM
NO RATINGS
In a similar light, the less I know about the origin of Kopi Luwak amd Chorizo, the better I enjoy my breakfast with my favorites: scramble eggs and coffee. One has to enjoy the result that proven good sources of nurishment and flavor. By the same token, one has to understand at a high-level the implications of complex organic chemistry, and know alergy potential, the same way that basic modeling provides an estimate. Not necessarily a detailed and inclusive analysis of significant n-th order effects. Just an observation.

pneu
User Rank
Rookie
re: The uncertainty principle
pneu   3/27/2011 5:05:55 PM
NO RATINGS
Back ups to back ups may not be a bad idea as long as that redundent back up does not rely on something that can or will fail in a catastrophic failure. Oh , about blow out preventers, didn't there instruments indicate there was an issue?

prabhakar_deosthali
User Rank
CEO
re: The uncertainty principle
prabhakar_deosthali   3/27/2011 6:20:20 AM
NO RATINGS
NASA can model, simulate, make, launch the Messenger satellite to orbit mercury after making it travel for more than 6 years and billions of miles . That disproves the uncertainty principle. Uncertainty of performance, uncertainty of quality etc is actually built by the product designer or implementer by overlooking some aspects. That 'let-go' thing is yhe root cause of all those uncertainties. In case of a mission like sending the satellite to Mercury such 'let-go' attitude is not tolerated and hence the project becomes successful.

David Ashton
User Rank
Blogger
re: The uncertainty principle
David Ashton   3/26/2011 11:08:59 PM
NO RATINGS
Well, you get to the point of diminishing returns, but in both cases the backup systems were not enough, were they?

Luis Sanchez
User Rank
Rookie
re: The uncertainty principle
Luis Sanchez   3/26/2011 8:43:50 PM
NO RATINGS
ja ja... back up of back ups! that's a good one :) Sounds like a never ending pursue of perfection.

Silicon_Smith
User Rank
Rookie
re: The uncertainty principle
Silicon_Smith   3/26/2011 8:15:16 PM
NO RATINGS
I just checked out the 'Aerostatic Flutter' link. Cool stuff! Though the solution that was presented seemed too simplistic for all the aeronautical engineers to have not considered as yet. I would love to hear what NASA had to say about their models.

WKetel
User Rank
Rookie
re: The uncertainty principle
WKetel   3/26/2011 1:50:43 PM
NO RATINGS
To paraphrase Bob Pease, the results can never be more accurate than the model used. An incomplete model can produce very pretty results that are very wrong, although they may appear to be correct over some small range. With the failed blowout preventer on the oil well, the device is supposed to be locked onto the well so that no shift is possible. As for taking control of the big screen, would you want that capability to fall into the hands of those internet folks trying to sell us viagra? Just think about that "unintended consequence."

David Ashton
User Rank
Blogger
re: The uncertainty principle
David Ashton   3/25/2011 10:17:29 PM
NO RATINGS
The moral of the story being that in the case of oil wells that can pump the sea full of oil, or nuclear reactors that can pump the atmosphere full of radioactivity, a backup system is not enough. You have to have backups of backups. And that's where we always seem to go wrong.

Brian Fuller2
User Rank
Rookie
re: The uncertainty principle
Brian Fuller2   3/25/2011 4:31:49 PM
NO RATINGS
I should have mentioned that story that emerged this week as part of the BP oil-leak investigation. The well apparently has a device whose sole purpose is to clamp the pipe shut in case of an emergency. The explosion shifted the pipe slightly so that the two opposing parts of the clamp couldn't form a tight fit. You'd think they would have factored in potential misalignment of the pipe in an explosion, but maybe not. To KD's point, models are models. And I supposed if we could factor in all the potential outcomes, we'd never move forward for fear of catastophe.

<<   <   Page 2 / 3   >   >>


Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Tired Old iPad 2 vs. Shiny New iPad Air 2
Max Maxfield
7 comments
I remember when the first iPad came out deep in the mists of time we used to call 2010. Actually, that's only four years ago, but it seems like a lifetime away -- I mean; can you remember ...

<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...