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01:03:00
This presentation, originally recorded in 1992, is a meditation on a lifetime dedicated to music. The renowned Hindustani classical music master Ali Akbar Khan recounts the earliest days of his musical study with his father (including his 18-hour practice days); how he chose to play and master his instrument, the sarod (maybe it chose him); and how music can be a healing force. He plays the instrument and explains how it works and how it’s different from the more well-known sitar. Khan also discusses the founding of his music school in San Rafael, California, a manifestation of his philosophy that knowledge of music should be shared with others.

01:03:00
A concert performed by the renowned Hindustani classical music master Ali Akbar Khan on sarod, recorded in 1992.

00:08:25
Size and scale can be difficult concepts to teach. TI staff educator Lori Lambertson talks us through one of her favorite activities, using one of her favorite dolls-Barbie.

00:06:43
Students really struggle with the metric system. TI staff educator Lori Lambertson tells us how she helps students get a handle on what the units really mean.

01:28:01
John Cage was one of the most influential composers in modern American music. He raised fundamental questions about the nature of music, and invigorated, provoked, and perplexed audiences throughout his long career. In this lecture from 1987, excerpts of his work are played and discussed. Afterwards, Cage takes questions and shares his thoughts on subjects ranging from the origins of his impulse to make music-"Many composers hear music before they write it, but I write music in order to hear it"-to using chance to create without ego or intention. He asks why we should listen to music instead of just listening to the sounds around us, and answers: "There's no reason."

00:04:43
Teaching isn't just work, it's a lot of fun. Staff physicist Thomas Humphrey quickly figured out that he didn't have the answer to every question in the classroom-and that's the fun of it.

00:07:04
TI staff biologist Karen Kalumuck describes how she tries not to answer every question that's asked during a class. Instead, she guides her students to discover ideas for themselves.

00:05:11
A veteran teacher describes her first year of teaching-in Guatamala. She faced many, many challenges, but she stuck it out and has been teaching for 20 years.

00:07:04
What is indigo anyway? Staff physicist Paul Doherty tells the story behind ROYGBIV, and how he'd like to change that standard palette.

00:07:27
What coin would just barely cover the full moon? You may be surprised. TI director (and recovering astrophysicist) Linda Shore explains how our brains distort the actual size of the moon.