WYSJ-CD Construction of the California Department of Transportation Headquarters; design; excavation; skeleton; hurricane- and earthquake-proofing; structural systems. 2026-10-10 Construction problems of mega-skyscrapers; exterior wall system; energy-conserving glass; safety issues; aesthetics. 2026-10-10 In hour three of our crash course on mega-skyscraper construction, we learn about the human element and development of systems that make us comfortable. 2026-10-10 Data lines; power; plumbing; photovoltaics; conserving energy; painting; carpeting; moving furniture; lights. 2026-10-10 The past, present and future of insulation technology. 2026-10-10 It was a science first conjured amid the fiery ovens of ancient blacksmiths; today more than 50% of all U.S. products require some form of welding. 2026-10-10 Earthmoving equipment story spans simple spades to powerful steam shovels; meet legendary giants John Deere, Jerome Case, and Caterpillar founders who forged America's construction industry, plus specialized trucks and space equipment. 2026-10-10 Construction of the California Department of Transportation Headquarters; design; excavation; skeleton; hurricane- and earthquake-proofing; structural systems. 2026-10-10 Construction problems of mega-skyscrapers; exterior wall system; energy-conserving glass; safety issues; aesthetics. 2026-10-10 In hour three of our crash course on mega-skyscraper construction, we learn about the human element and development of systems that make us comfortable. 2026-10-10 Data lines; power; plumbing; photovoltaics; conserving energy; painting; carpeting; moving furniture; lights. 2026-10-10 A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912. 2026-10-10 On July 20, 1973, martial arts superstar Bruce Lee dies under mysterious circumstances in Hong Kong, China. 2026-10-10 An infamous Cold War cold case involving nine hikers found mutilated on a remote mountain slope; for over 60 years, authorities and amateurs alike have been trying to figure out what happened in a place that's been called "Russia's Area 51.". 2026-10-10 As the Cold War ramps up, a well-dressed man is found dead within miles of a nuclear testing site on a tranquil Australian beach; there are no clues to his identity or what could have happened. 2026-10-10 One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370. 2026-10-10 A medieval manuscript, which is filled with unidentifiable drawings and written in a secret language so complex that even the world's best code breakers can't crack, it has obsessed everyone from scholars to conspiracy theorists. 2026-10-10 A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912. 2026-10-10 On July 20, 1973, martial arts superstar Bruce Lee dies under mysterious circumstances in Hong Kong, China. 2026-10-10 An infamous Cold War cold case involving nine hikers found mutilated on a remote mountain slope; for over 60 years, authorities and amateurs alike have been trying to figure out what happened in a place that's been called "Russia's Area 51.". 2026-10-11 As the Cold War ramps up, a well-dressed man is found dead within miles of a nuclear testing site on a tranquil Australian beach; there are no clues to his identity or what could have happened. 2026-10-11 One of the most chilling aviation mysteries in modern day: a Boeing 777, carrying 239 people, vanishes over the Indian Ocean; nearly a decade later, no one knows what really happened to Malaysia Flight 370. 2026-10-11 A medieval manuscript, which is filled with unidentifiable drawings and written in a secret language so complex that even the world's best code breakers can't crack, it has obsessed everyone from scholars to conspiracy theorists. 2026-10-11 A dust-covered box hidden in a British manor house for 108 years contains the personal notes of Lord Mersey, the respected British jurist and politician charged with investigating the sinking of the Titanic in 1912. 2026-10-11