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Article #104Re: nasa-celebrates-successful-mars-landing
From: Jeff Liebermann
Date: Mon, 13 Aug 2012 16:33
Date: Mon, 13 Aug 2012 16:33
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3571 bytes
On Mon, 13 Aug 2012 01:18:31 -0700, Jon Kirwan <jonk@infinitefactors.org> wrote: >>Is $30 too much? >><http://shop.breadpig.com/collections/publiclaboratory/products/desktop-spectrometry-kit> >><http://spectralworkbench.org> >Yes, $30 is too much and so is requiring a computer. (...) >Some students will then move on to the idea of a camera and >using a computer to process the pixels. The $30 kit includes a 1280x720 pixel USB camera. For 12 year olds, the glasses are "cool". >There is some work >involved in that next step (I've already written all the >wavelength calibration software, though.) Not all students go >there. Most just stop at the box and use their eyes. OK. However, if a few are going to use a computah, I suggest you look at the associated software: <http://publiclaboratory.org/wiki/spectral-workbench-download> which is open source and comes in Linux, OS/X, and Windoze flavors. >><http://www.ebay.com/itm/280806593566> >I'll stick with the DVD-RW. 1350 lines/mm. Yep. Much better resolution with a DVD-RW. However, you can get closer with 1000 lines/mm for $1.30/ea in a 35mm slide format: <http://www.ebay.com/itm/200797654374> Or, buy sheets of 1000 lines/mm film and paste your own into a black box: <http://www.ebay.com/itm/310420871279> -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
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From: Jeff Liebermann <jeffl@cruzio.com>
Newsgroups: sci.electronics.design,aus.electronics,comp.arch.embedded
Subject: Re: nasa-celebrates-successful-mars-landing
Date: Mon, 13 Aug 2012 09:33:38 -0700
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