Mark explains how to make concrete; Tom replaces a broken pane in a basement window; in Future House, Ross travels to NASA Johnson Space Center to learn about the technology they use on the International Space Station to keep the astronauts alive.
Released: Jan 01, 1970
Runtime: 00:30:14 minutes
Genre: Documentary
Stars: Richard Trethewey, Norm Abram, Roger Cook, Kevin O'Connor, Tom Silva, Steve Thomas Rooney