[SI-LIST] Re: Shive wave machine video
- From: "Todd Westerhoff" <twesterh@xxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 9 Apr 2012 09:56:03 -0400 (EDT)
Colin,
That is so cool. Thanks for finding this!
Todd.
Todd Westerhoff
VP, Software Products
Signal Integrity Software Inc. ? www.sisoft.com
6 Clock Tower Place ? Suite 250 ? Maynard, MA 01754
(978) 461-0449 x24 ? twesterh@xxxxxxxxxx
?I want to live like that ?
-Sidewalk Prophets
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of colin_warwick@xxxxxxxxxxx
Sent: Monday, April 09, 2012 9:25 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Shive wave machine video
Hi si-listers,
My friend Dick Benson shared this gem with me so I'd thought I'd pay it
forward. In this 1959 educational film, Dr. John N. Shive of Bell Labs
uses the Shive wave machine (a mechanical analog of wave propagation e.g.
electrical waves on a transmission line) to visualize:
* Positive and negative reflection of waves from free and clamped ends
* Superposition
* Standing waves, standing wave ratio, and resonance
* Energy loss by impedance mismatching
* Reduction of energy loss by quarter-wave and tapered-section
transformers
It's a little longer (26 minutes) than most video clips but it's worth
watching the whole thing because he packs so much in it.
Here's the long link:
http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarit
ies-of-Wave-Behavior
..and a shortened one just in case:
http://bit.ly/HDF8Cn
Enjoy!
-- Colin Warwick
Product manager for High Speed Digital, Agilent EEsof EDA
Blog: http://Signal-Integrity.TM.Agilent.com
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