From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f43.google.com (mail-pb0-f43.google.com [209.85.160.43]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id D3CAE200BFD for ; Sat, 12 May 2012 09:42:38 -0700 (PDT) Received: by pbcwz7 with SMTP id wz7so8095624pbc.16 for ; Sat, 12 May 2012 09:42:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type; bh=2zcZ8dxlPTC4Ef2yjvAOdq8oxYlAPR5h6rpuujAK0F4=; b=Wr9UZGpj+i2RXWJCwsDj9IJJ4eynFgBZw1t3WkYC5/LAfH3P0MKaxQdI0R0d4GOe+y mtPdrJo41Fy5zwbLWl8oEoyaPjlt9c90rrV9eLmbjoqNvBottVaG7RB9v0LJzK4yLKqQ 9KvcN4EYhHL/TrkATH6Av11sNKhwlOpMfI9ne9y3eH7sfo2y+okq1AI7NYRL4ym8UyNC F8i3ocNXskFrc0pwuX0PDK3IYH5rXNw3cK+6g+OQpAH4cy3EMJw7h+6XdMFWYZsSwW/A OaZ5N5bKv136/crRFvqrIq/jRhmK41ZqkCl0ZXn6l2lSwUdHh3qTVp+qnDY8OdDDPuhA xMSQ== Received: by 10.68.201.169 with SMTP id kb9mr396044pbc.101.1336840958015; Sat, 12 May 2012 09:42:38 -0700 (PDT) Received: from ?IPv6:2001:4f8:3:203::c001? ([2001:4f8:3:203::c001]) by mx.google.com with ESMTPS id qm3sm16432516pbc.12.2012.05.12.09.42.35 (version=SSLv3 cipher=OTHER); Sat, 12 May 2012 09:42:36 -0700 (PDT) Message-ID: <4FAE92FA.5060109@gmail.com> Date: Sat, 12 May 2012 09:42:34 -0700 From: dave taht User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120410 Thunderbird/11.0.1 MIME-Version: 1.0 To: thumbgps-devel@lists.bufferbloat.net References: <20120512101417.GC25006@thyrsus.com> <65F33EA8-96E1-4695-A78C-6AC7D53F5AE7@gmail.com> <4FAE8EBB.8040507@gmail.com> In-Reply-To: <4FAE8EBB.8040507@gmail.com> Content-Type: multipart/alternative; boundary="------------000900090503090909060308" Subject: Re: [Thumbgps-devel] bikeshed - earthquake detector X-BeenThere: thumbgps-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 May 2012 16:42:39 -0000 This is a multi-part message in MIME format. --------------000900090503090909060308 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit The other idea that I'd had, with having sensors like this attached to the internet, was an early warning system that's cheap to deploy everywhere and effective. I'd asked myself this question, back in march. "How THE HELL - in 1967 - do you design something so good, that: after lasting 10 years beyond your intended design life - can also withstand a quake 7x the size of what you designed it for? Followed by a tsunami? Whose hand can I shake? Who gets a medal? Are any of those engineers from the 60s still alive? I mean, WOW. They did that design, at least in part, with /slide rules/." http://nex-6.taht.net/posts/Heroic_Engineering_In_Japan/ On 05/12/2012 09:24 AM, dave taht wrote: > It's really amazing what watching some jugglers equipped with ardinos > and accelerometers can do to your thinking, especially if they are > speaking in a language you don't understand, but show off the > simplicity of the gerbers and chipset 4 minutes in. Gerbers are a > language I do sort of understand. > > http://vimeo.com/39949357 > > There's all kinds of artistic things the demoscene is doing with this > now incredibly cheap stuff > > http://vimeo.com/24281110 > > Seismograph is a possibly practical application. + Perfect time, > perfect location and altitude lock. Don't know if 12 bits at the > sample rate is useful tho. One indirect measurement is the effect on > the network of earthquakes. > > > On 05/12/2012 09:08 AM, tz wrote: >> Sparkfun also has various accelerometers on breakoutboards (and >> others including a board that has a gyro and compass too). >> >> The Skytraq also has I2c (I was originally trying to use it to pull >> J1850 data instead of my latest solution) >> >> On Sat, May 12, 2012 at 6:22 AM, Andrew McGregor >> > wrote: >> >> Dave suggested using it as an el-cheapo seismograph in areas with >> poor coverage (which doesn't describe here, but apparently does >> describe a lot of central America). >> >> On 12/05/2012, at 10:14 PM, Eric S. Raymond wrote: >> >> > Dave Taht >: >> >> http://www.sparkfun.com/products/10953 >> >> >> >> The ublox has an i2c on it (at least some do). This has 12 bit >> >> resolution, 2g,4g,and 8g range. 3mm wide... >> > >> > That is *cool*. I hasd no idea these were available so small >> and cheap. >> > What were you thinking about using it for? >> > -- >> > Eric S. Raymond >> >> >> _______________________________________________ >> Thumbgps-devel mailing list >> Thumbgps-devel@lists.bufferbloat.net >> >> https://lists.bufferbloat.net/listinfo/thumbgps-devel >> >> >> >> >> _______________________________________________ >> Thumbgps-devel mailing list >> Thumbgps-devel@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/thumbgps-devel > --------------000900090503090909060308 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit The other idea that I'd had, with having sensors like this attached to the internet, was an early warning system that's cheap to deploy everywhere and effective.

I'd asked myself this question, back in march.

"How THE HELL - in 1967 - do you design something so good, that: after lasting 10 years beyond your intended design life - can also withstand a quake 7x the size of what you designed it for? Followed by a tsunami? Whose hand can I shake? Who gets a medal? Are any of those engineers from the 60s still alive? I mean, WOW. They did that design, at least in part, with slide rules."

http://nex-6.taht.net/posts/Heroic_Engineering_In_Japan/



On 05/12/2012 09:24 AM, dave taht wrote:
It's really amazing what watching some jugglers equipped with ardinos and accelerometers can do to your thinking, especially if they are speaking in a language you don't understand, but show off the simplicity of the gerbers and chipset 4 minutes in. Gerbers are a language I do sort of understand.

http://vimeo.com/39949357

There's all kinds of artistic things the demoscene is doing with this now incredibly cheap stuff

http://vimeo.com/24281110

Seismograph is a possibly practical application. + Perfect time, perfect location and altitude lock. Don't know if 12 bits at the sample rate is useful tho. One indirect measurement is the effect on the network of earthquakes.


On 05/12/2012 09:08 AM, tz wrote:
Sparkfun also has various accelerometers on breakoutboards (and others including a board that has a gyro and compass too).

The Skytraq also has I2c (I was originally trying to use it to pull J1850 data instead of my latest solution)

On Sat, May 12, 2012 at 6:22 AM, Andrew McGregor <andrewmcgr@gmail.com> wrote:
Dave suggested using it as an el-cheapo seismograph in areas with poor coverage (which doesn't describe here, but apparently does describe a lot of central America).

On 12/05/2012, at 10:14 PM, Eric S. Raymond wrote:

> Dave Taht <dave.taht@gmail.com>:
>> http://www.sparkfun.com/products/10953
>>
>> The ublox has an i2c on it (at least some do). This has 12 bit
>> resolution, 2g,4g,and 8g range. 3mm wide...
>
> That is *cool*.  I hasd no idea these were available so small and cheap.
> What were you thinking about using it for?
> --
>               <a href="http://www.catb.org/~esr/">Eric S. Raymond</a>


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