Alan Alda

Dec. 12, 2014

Alan Alda Challenges Scientists to Answer: What Is Sleep?

Alan Alda’s “Flame Challenge” asks scientists to answer the big questions that keep them up at night to 11-year-olds around the world.

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Jan. 31, 2014

Alan Alda’s Challenge to Scientists: Define Color

Alda's 'Flame Challenge' asks scientists to explain color—with children as the judges.

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Dec. 14, 2012

Alan Alda’s Challenge to Scientists: What Is Time?

Calling all scientists! How do you explain the concept of time to an 11-year-old?

Alan Alda, The Flame Challenge, science communication, kid-friendly, explanation for a flame, time, video, stem, learning, education

Jun. 08, 2012

The Winning Answer to a Burning Question

The winner of Alan Alda’s ‘Flame Challenge’ draws on animation, song and a physics background.

science communication, education, kids, children, schools, teaching science, flame, oxidation, burning

Mar. 23, 2012

Alan Alda Asks Scientists 'What Is A Flame?'

Eleven-year-olds from around the world will judge entries to Alda's "Flame Challenge."

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Snowflake Safari

\tWinter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates, and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake.

\tVideo originally published on ScienceFriday.com on December 31, 2009

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