Hi David - Thanks for mentioning that presentation about the real time
dendrite growth - I went ahead and posted a copy of this on our website -
http://www.residues.com - you can find the link to it on the left hand side.
Sara Gorcos
Foresite, Inc. (formerly CSL)
1982 S. Elizabeth St.
Kokomo, IN 46902
(765)457-8095
www.residues.com
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David Douthit
Sent: Tuesday, August 31, 2004 8:22 AM
To: [log in to unmask]
Subject: Re: [TN] Historical Document (Dendrites) time question
Brian,
Foresite Labs (formally CSL) has a real time PowerPoint slide show done in
real time showing a dendrite growing in 12 seconds across a .020 inch gap at
ten volts with a drop of DI water applied (no solder - bare copper).
Quite impressive!
David a. Douthit
Manager
LoCan LLC
Brian Ellis wrote:
> Yes, the film was shot in real time. I believe that it was shot with a
> 10 V DC source via a 10 kilohm current-limiting resistor across two
> adjacent tracks spaced about 1 mm with a single drop of 18 megohm
> water applied. However, I no longer have the details, so may be
> slightly off on some of them. I know that Charles Jennings tried it
> with different substrates and different conductor finishes and
> succeeded in growing dendrites with all of them, though at very
> different speeds.
>
> Brian
>
> Carl VanWormer wrote:
>
>> Was this growth "real time". If not, how long did the process take?
>>
>>
>> Carl Van Wormer
>> Cipher Systems
>> 1815 NW 169th Place, Suite 5010
>> Beaverton, OR 97006
>> Phone (503)-617-7447 Fax (503)-617-6550
>>
>>
>>
>> -----Original Message-----
>> From: Brian Ellis [mailto:[log in to unmask]]
>> Sent: Sunday, August 29, 2004 12:18 AM
>> To: [log in to unmask]
>> Subject: Re: [TN] Historical Document (Dendrites)
>>
>>
>> Steve
>>
>> As far as I'm aware, this clip is in the public domain. I know that
>> Charles Jennings distributed many 16 mm copies of it. If this is so,
>> then you don't
>> need my permission. If it is considered copyright, then you should obtain
>> permission from Sandia (I don't imagine this would be a problem).
>>
>> Of course, the tiny image in my download is hardly suitable for
>> reproduction. I could provide it in a form reproducible on a TV or
>> computer screen as an SVCD (PAL 480 x 576 pixels 25 fps or NTSC 480 x
>> 480 29.97 fps)
>> or even a DVD (PAL 720 x 576 25 fps or NTSC 720 x 480 29.97 fps). I'd be
>> willing to do this on a non-profit basis, but my costs (media, conversion
>> and authoring time on specialised equipment, packing and postage)
>> would have
>> to be covered. (As I'm "retired", living on a pension, I no longer have a
>> company to sponsor me.) I hope this is not contravening IPC rules on
>> spamming on the TN.
>>
>> Brian
>>
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