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00:00:51
An introduction to how to make your own simple speaker, which transmits sound from a radio or MP3 player and demonstrates the principles of electromagnetism and vibration.

00:06:43
A detailed demonstration of how to make a cup speaker, including a discussion of materials needed.

00:02:25
The science behind the Cup Speaker activity, including how electromagnets work, and how in this activity the magnet pushes the bottom of a cup back and forth, vibrating the air and creating sound.

00:01:12
An introduction to an activity that lets you discover the secret colors hidden in black ink. With a paper towel, a black marker, and a cup of water, create a rainbow of colors while exploring capillary action and chromatography.

00:01:33
Explore the science behind this activity, including capillary action (how the water moves up the paper) and chromatography, or how different elements of the ink are carried along at different rates, allowing you to see that black ink is actually made up of many different colors.

00:11:07
NPR, or Neighborhood Public Radio is an artists collective and community radio project founded in 2004 by multimedia artists and educators Lee Montgomery, Jon Brumit and Michael Trigilio. Acting as a traveling band of guerilla broadcasters, NPR personnel have hosted thematic broadcasts from San Francisco to Serbia, including a stint at the 2008 Whitney Biennial. What is Neighborhood Public Radio? Imagine a storefront community radio station open to you. You get access to the airwaves regardless of your qualifications or message. We caught up with the founders of the now-decentralized NPR team, in Oakland, Chicago and San Diego to talk about the technical, social and political aspects of broadcasting, and about their tattoos. As a special treat for our listeners we thought it would be fun to ask Lee, Jon and Michael to create a new Audio-Art piece for our Podcast series. The idea was simple. They would each create a composition that was no more than 5 minutes long, and we would layer all three parts together to create a single new work. Visit the link at the bottom to hear the results.

00:05:32
Our host, Stephanie Chasteen, shares some fun facts and activities having to do with the science of sound.

00:01:59
Snow Mirror is the first in a series of pieces that celebrate slowness and black and white, in this piece the image of the viewer is created by the congregation and accumulation of white snow flakes in areas of the image that are brighter. The result is projected on a transparent silk fabric which creates a feeling of the flakes being suspended in space. Artist Daniel Rozin will be featured in the Exploratorium's 2009 exhibition, Reflections.

00:00:40
Shaking Time Mirror is the forth of the "Time Series" Software Mirrors. This series of software mirrors examines notions of time, scanning, motion and stagnation. In Shaking Time Mirror only areas of movement on the screen are refreshed with current video, the rest of the screen ages and turns into a gray stagnant crust. When a viewer moves in front of the piece the crust flakes of and revels the full colored image of the viewer, which gradually grays back. Artist Daniel Rozin will be featured in the Exploratorium's summer exhibition, Reflections.

00:00:20
Self Centered Mirror is an arrangement of 34 vertical panes of mirror. It has a retro-reflective behavior, this means that anyone standing in front of this mirror will see themselves reflected on all 34 panes, The mirror will also remove anyone else in the space from being reflected. This piece lifts the last obstacle from in the quest to total narcisism. Artist Dan Rozin will be featured in the Exploratorium's summer exhibition, Reflections.