Comments on: Physics Toys Tuesday: Colored shadows http://blog.sciencegeekgirl.com/2009/05/27/physics-toys-tuesday-colored-shadows/ explorations and inspirations... in how we learn science Mon, 06 Feb 2012 23:52:22 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Gough http://blog.sciencegeekgirl.com/2009/05/27/physics-toys-tuesday-colored-shadows/comment-page-1/#comment-3903 Gough Sun, 05 Jun 2011 00:56:49 +0000 http://blog.sciencegeekgirl.com/?p=792#comment-3903 As the special bulbs called for in the "Colored Shadows" in the Exploratorium Cookbook have gotten harder and harder to find, we've been looking at alternatives. We purchased a set of the Arbor Scientifics spotlights, and found them to be less than satisfactory. We finally settled on a three-LED set from Sparkfun, hooked up to a "wall wart". It works great, and the total cost was about $60. Since then, we've found a nice three-LED color mixing device from American Science and Surplus, called Light Demo, for $75. That one has the advantage of controls to adjust the levels of the three LEDs. As the special bulbs called for in the “Colored Shadows” in the Exploratorium Cookbook have gotten harder and harder to find, we’ve been looking at alternatives. We purchased a set of the Arbor Scientifics spotlights, and found them to be less than satisfactory. We finally settled on a three-LED set from Sparkfun, hooked up to a “wall wart”. It works great, and the total cost was about $60. Since then, we’ve found a nice three-LED color mixing device from American Science and Surplus, called Light Demo, for $75. That one has the advantage of controls to adjust the levels of the three LEDs.

]]> By: Try Rocking Horses http://blog.sciencegeekgirl.com/2009/05/27/physics-toys-tuesday-colored-shadows/comment-page-1/#comment-3673 Try Rocking Horses Fri, 17 Sep 2010 07:03:08 +0000 http://blog.sciencegeekgirl.com/?p=792#comment-3673 I wonder id you could do something to a lesser degree with multiple projectors (lite-pro) , probably easier to beg / borrow / steal if you are in an educational establishment How about an article on momentum using Rocking horses I wonder id you could do something to a lesser degree with multiple projectors (lite-pro) , probably easier to beg / borrow / steal if you are in an educational establishment

How about an article on momentum using Rocking horses

]]> By: sciencegeekgirl http://blog.sciencegeekgirl.com/2009/05/27/physics-toys-tuesday-colored-shadows/comment-page-1/#comment-1459 sciencegeekgirl Fri, 29 May 2009 05:45:23 +0000 http://blog.sciencegeekgirl.com/?p=792#comment-1459 Yup, that's pretty much what the Exploratorium Science Snack link will help you put together -- cheaper, though it's likely to not be quite as bright. Yup, that’s pretty much what the Exploratorium Science Snack link will help you put together — cheaper, though it’s likely to not be quite as bright.

]]> By: Matt Kriebel http://blog.sciencegeekgirl.com/2009/05/27/physics-toys-tuesday-colored-shadows/comment-page-1/#comment-1458 Matt Kriebel Fri, 29 May 2009 03:32:35 +0000 http://blog.sciencegeekgirl.com/?p=792#comment-1458 You can get colored outdoor spotlights in Red Green & Blue if you look around (colored floodlight are easier). Get those, a few sockets, mount them to a board and you've got a budget version of this toy! You can get colored outdoor spotlights in Red Green & Blue if you look around (colored floodlight are easier). Get those, a few sockets, mount them to a board and you’ve got a budget version of this toy!

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