Actor Alan Alda and World Science Festival founder physicist Bria...

51685783 Download

J. Kohen

Actor Alan Alda poses for a photo at the 2008 World Science Festi...

51685759 Download

J. Kohen

Actor Alan Alda speaks at the 2008 World Science Festival Announ...

51685741 Download

J. Kohen

Actor Alan Alda speaks at the 2008 World Science Festival Announ...

51685742 Download

J. Kohen

Actor Alan Alda speaks at the 2008 World Science Festival Announ...

51685737 Download

J. Kohen

Actor Alan Alda and World Science Festival founder physicist Bria...

51685781 Download

J. Kohen

Actor Alan Alda poses for a photo at the 2008 World Science Festi...

51685761 Download

J. Kohen

Muppet Scientist Dr. Bunsen Honeydew speaks at the 2008 World Sc...

51685766 Download

J. Kohen

World Science Festival founder Brian Greene speaks at the 2008 Wo...

51685754 Download

J. Kohen

Actor Alan Alda speaks at the 2008 World Science Festival Announ...

51685747 Download

J. Kohen

George Campbell of Cooper Union speaks at the 2008 World Science ...

51685796 Download

J. Kohen

Muppet Scientist Dr. Bunsen Honeydew speaks at the 2008 World Sc...

51685762 Download

J. Kohen

World Science Festival founder Brian Greene and Muppet Scientist ...

51685755 Download

J. Kohen

Actor Alan Alda speaks at the 2008 World Science Festival Announ...

51685739 Download

J. Kohen

Actor Alan Alda and World Science Festival founder physicist Bria...

51685786 Download

J. Kohen

Co founder of the 2008 World Science Festival Tracy Day speaks at...

51685816 Download

J. Kohen

Columbia University President Lee Bollinger speaks at the 2008 Wo...

51685799 Download

J. Kohen

Columbia University President Lee Bollinger speaks at the 2008 Wo...

51685801 Download

J. Kohen

George Campbell of Cooper Union speaks at the 2008 World Science ...

51685794 Download

J. Kohen

Muppet Scientist Dr. Bunsen Honeydew speaks at the 2008 World Sc...

51685765 Download

J. Kohen

NYC Schools Chancellor Joel Klein speaks at the 2008 World Scienc...

51685806 Download

J. Kohen

NYC Schools Chancellor Joel Klein speaks at the 2008 World Scienc...

51685808 Download

J. Kohen

NYU President John Saxton speaks at the 2008 World Science Festi...

51685788 Download

J. Kohen

World Science Festival founder Brian Greene speaks at the 2008 Wo...

51685753 Download

J. Kohen

World Science Festival founder Brian Greene speaks at the 2008 Wo...

51685751 Download

J. Kohen