I Grew Up In A Country That

The Energy Varies With The Square Of The Velocity, So If You Need Five Times The Velocity, That's 25 Times The Energy.

Mars Is Far More Attractive As An Outpost Colony For Earthlings Than The Moon Is.

I Don't Believe Any Pair Of People Had Been More Removed Physically From The Rest Of The World Than We Were.

I'm Sure The Most Favorite Airplane In My Career Would Still Be The Sabre F86 Cleft Wing , Which Allowed Me To Be Credited With 2 Russian-built Mig-15 Destroyed During The Korean War. Where I Was In 1953.

It's Been One Of The Greatest Challenges That Ever Came Along In My Life; It Was One Of The More Difficult Things To Do.