My first job on 2001 was to make all of the HAL readouts: the 16 screens that surround HAL's eyes.

I took IMAX public back in the early '90s.

I'd formed a research and development company under the banner of Paramount Pictures back in about 1975, and its mandate was to explore advanced forms of entertainment, not just movies.

2001' used a lot of what's called 'front projection.' You project an image onto this giant reflective screen, and the image bounces back and comes back to the lens and seems to be in the background behind the actors. The whole 'dawn of man' sequence in '2001' was projected eight-by-ten photographs of the African savannah.

At DonorsChoose.org, we've seen what technology can do for a classroom. We make it easy for teachers to request the materials they need most for their classrooms and for donors to make a meaningful contribution to education.

Believe it or not, a lot of people watch social media. I have 1.5 million people on Instagram, 2.5 million people on Twitter: that is how many people are watching whatever I do.

I'm not the biggest on social media.

The internet is not for sissies.