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01:01:28
For science fair competition taken to the third power, watch two veteran scientists as they battle head to head to determine who is the Iron Scientist. Home-town favorite, Exploratorium physicist, Dr. Dr. Paul Doherty will square off against heavy-weight contender, visiting Exploratorium Osher Fellow and Boston University astrophysicist Professor Kenneth Brecher. They have 5 minutes to teach their favorite activities, and then move on to the secret ingredients: marbles and panty hose

00:16:58
Dr. Paul Doherty scours the globe for the world's greatest science demonstrations. Here he partners with Dr. Gorazd Planinsic, frequent contributor to Physics Teacher magazine, active in international physics education, and illustrator of physics text books. Watch this webcast, follow the links to the 'recipes,' then try it yourself!

1:00:07
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. This week���s ���secret��� ingredient: food coloring!

0:50:12
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers have ten minutes to create a science activity. This week���s ���secret��� ingredient: rulers and meter sticks!