Exploratorium Quarterly - Light Traces

The Light Traces I did together with Amy Snyder are featured in the Exploratorium Quarterly (July 2007)! Have a look at Light Traces of Baseball featuring Dave Barker (he is the explOratorium's baseball expert).


or find more light traces in this gallery:


Read more: How to make Light Traces

Break it!

It shakes, vibrates, and - yes - breaks! Watch how sound (not even very loud) shatters a wine glass:

Balancing Stick - A feedback system

A really fun Exploratorium snack in a new light. Balancing a stick with a weight is a challenge that requires good hand-eye coordination. Let's explore this feedback system: Hand - Stick - Eye. Read more...

Find the activity here.

Ecobay

Save the Bay! A workshop that combined hands-on activities on mapping, data collection and water sheds. A lot of fun, just like the other outdoors workshops, ...Click to see more.

Handmade Earbuds

Making funky earbuds for IPods. Forgot your IPod headphones? You need nothing but a coil of wire, a magnet, and a small plastic cup to make your own!

Many thanks to Modesto Tamez for showing me his magic...

Wave upon Wave

Making waves and making waves disappear, using only paper and coffee stirs. An elegant paper model showing constructive and destructive interference, my first invention at the Exploratorium. DocFile

Discovery Voyage

Pictures of the Discovery Voyage Workshop.
We spent a half-day discovering the Estuary's ecosystem aboard the research vessel, Robert G. Brownlee. Amazing!

Sound Bite

The latest experiment of "Physics and Music": Bite on a music-box! Read more:
orgmusicboxsound.mp3

Room Acoustics

Playing a pure 200 Hz tone on two speakers created an unexpected sound scape in the Berkeley lecture room:

Signal and Noise Game

A new game on "Signal and Noise": We made up sentences (a signal) and then randomly replaced letters (we added noise to the signal). Here are some examples, try to guess what the original sentence said:
Gon towee eogy looking
Eudolph soe red noae
(click on comments to see the answers)

Take it outside!

Just came home from the "Take it Outside" workshop with Bob Miller, Modesto, and Linda. The weather was perfect! Have a look at the pictures

Science of Baseball

The Teacher workshop Science of Baseball (02/24) was a lot of fun. Have a look at more pictures on Flickr:

Christmas Lights

There are new photos of "Physics and Music" on Flickr, the class I am co-teaching in Berkeley:
Photos of Harmonics. Photos by Andrew, Glory, and Steve