Modern Marvels - Season 16 - Eps 17: Doors
Take a look at the tallest doors in the world at the Vehicle Assembly Building at Kennedy Space Center. Visit a company that makes blast doors and bulletproof doors. Learn about the surprisingly complex process involved in making home doors, as well as what goes into those commercial entries and exits we use everyday–the revolving door and the turnstile. At the Southwestern Foundation for Biomedical Research, enter through an airlock into their level 4 biohazard lab. The Cleveland Federal Reserve doesn't even send people into their vaults; its robots go in and out. Try some aviation entries and exits–the jet way used to board a plane, the airplane emergency exit procedures we hope to never use, and ejection seats, the fastest exit anywhere. Then, an engineering firm that designs hidden doors will take viewers to see a few of their secret entries. Finally, take a quick look at doors that go nowhere, at the Winchester Mystery House.
About Modern Marvels

Title: Modern Marvels
First Air Date: 1993-12-10
Last Air Date: 2022-08-08
Status: Returning Series
Rating: 8/10 (from 29 votes)
Language: EN
Seasons: 23
Total Episodes: 705
Network: History H2
Genres: Documentary
Production Companies: Jupiter Entertainment, Six West Media
Synopsis
HISTORY’s longest-running series moves to H2. Modern Marvels celebrates the ingenuity, invention and imagination found in the world around us. From commonplace items like ink and coffee to architectural masterpieces and engineering disasters, the hit series goes beyond the basics to provide insight and history into things we wonder about and that impact our lives. This series tells fascinating stories of the doers, the dreamers and sometime-schemers that create everyday items, technological breakthroughs and manmade wonders. The hit series goes deep to explore the leading edge of human inspiration and ambition.