Join us for look into five engineering disasters... A dangerous cloud of gas explodes into Cleveland's worst fiery industrial disaster in 1944, killing 128 people. A dance competition turns deadly at the new Kansas City Hyatt in 1981, when a skywalk gives way and kills 114. In 1995, neighbors gaped at the spectacle of a $1.5-million San Francisco Bay area mansion breaking into bits as it fell into a massive sinkhole during a rainstorm. In 1931, one of the worst "natural" disasters ever occurred in the Yangtze River basin when six huge flood waves swept down the river destroying the insufficient dams and levees and killing at least 145,000 people. The "miracle mineral" that the US was built upon turns out to be an invisible killer--an estimated 10,000 people die each year from asbestos-related diseases.

In Milwaukee, 104 died after drinking contaminated tap water. At Texas A&M, a tradition turned tragic when a pile of bonfire logs collapsed onto its builders. Thousands of US soldiers expired in known WWII deathtraps--Sherman Tanks. In 1973, 14 men working on a 26-story building died when supports were removed from wet concrete. And in 1993, Denver's "dream" airport became a nightmare when its baggage-handling system ran amok. Aided by computer graphics, catastrophe footage, and visits to the locations today, MIT scientists, Center for Disease Control experts, WWII vets, bonfire builders, and construction engineers explain these tragedies and measures taken to prevent them in future.

In this hour, death seeps out of the ground into a neighborhood sitting on a toxic waste dump at Love Canal in New York; soldiers die during Desert Storm in 1991 when software flaws render Patriot Missiles inaccurate; on September 11, 2001, World Trade Center Building #7 wasn't attacked, but seven hours after the Twin Towers collapsed, it too is mysteriously reduced to a pile of rubble; a night of revelry in Boston turns the Cocoanut Grove nightclub into an inferno that kills over 400 people in 1942; and the science of demolition is put to the test and fails when a building in Rhode Island, the "Leaning Tower of Providence," stands its ground.

In this hour, we examine a massive oil tanker explosion that killed nine; a subway tunnel cave-in that swallowed part of Hollywood Boulevard; a freighter plane crash that destroyed an 11-story apartment building; an historic molasses flash flood; and a freeway ramp collapse that buried construction workers in rubble and concrete. Investigators from NTSB, Cal/OSHA, and Boeing, structural and geo-technical engineers, and historians explain how so much could have gone wrong, costing so many lives. And aided by computer graphics, footage and photos of the disasters, and visits to the locations today, we show viewers what caused these catastrophes and what design experts have done to make sure they never happen again.

What does it take to construct a building that will cover an entire city block? Try 13,000 tons of steel, 36,000 cubic yards of concrete, enough wire and cables to stretch from New York City to Boston, hundreds of professionals, and two years of blood, sweat, and swearing. Welcome to Skyscraper 101. In the first hour, we see how architects design a building and check out the new California Department of Transportation headquarters--a project we've followed for two years.

For two years, we've followed construction of the new California Department of Transportation headquarters in downtown LA--a massive 700,000 square-foot office building--and we use this building as a specific example to illustrate construction problems of mega-skyscrapers, from the Empire State Building to the Sears Tower to the TAIPEI 101. In hour two, the steel skeleton is up, but before the windows and walls go up, the general contractor tests the exterior wall system by building a mockup.

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. And we'll see the evolution from freight hoists to today's fastest high-speed pressurized elevators and, on the cooler side, the evolution from ice refrigeration to 3,000-ton chillers. We meet Bobby, the manlift operator and the building site's standup comedian, and travel to Taiwan to visit the world's fastest elevators in the TAIPEI 101.

For two years, we've followed the construction of the new California Department of Transportation headquarters in LA to learn the architectural, structural, and mechanical challenges of building mega-skyscrapers. In hour four, as we're installing the veins and arteries of the building and wrapping up construction on CalTrans, we learn how development of electricity and indoor plumbing made skyscrapers possible--imagine needing to take an elevator down 70 stories to use the privy behind the building!

Join us for look into five engineering disasters... A dangerous cloud of gas explodes into Cleveland's worst fiery industrial disaster in 1944, killing 128 people. A dance competition turns deadly at the new Kansas City Hyatt in 1981, when a skywalk gives way and kills 114. In 1995, neighbors gaped at the spectacle of a $1.5-million San Francisco Bay area mansion breaking into bits as it fell into a massive sinkhole during a rainstorm. In 1931, one of the worst "natural" disasters ever occurred in the Yangtze River basin when six huge flood waves swept down the river destroying the insufficient dams and levees and killing at least 145,000 people. The "miracle mineral" that the US was built upon turns out to be an invisible killer--an estimated 10,000 people die each year from asbestos-related diseases.

In Milwaukee, 104 died after drinking contaminated tap water. At Texas A&M, a tradition turned tragic when a pile of bonfire logs collapsed onto its builders. Thousands of US soldiers expired in known WWII deathtraps--Sherman Tanks. In 1973, 14 men working on a 26-story building died when supports were removed from wet concrete. And in 1993, Denver's "dream" airport became a nightmare when its baggage-handling system ran amok. Aided by computer graphics, catastrophe footage, and visits to the locations today, MIT scientists, Center for Disease Control experts, WWII vets, bonfire builders, and construction engineers explain these tragedies and measures taken to prevent them in future.

In this hour, death seeps out of the ground into a neighborhood sitting on a toxic waste dump at Love Canal in New York; soldiers die during Desert Storm in 1991 when software flaws render Patriot Missiles inaccurate; on September 11, 2001, World Trade Center Building #7 wasn't attacked, but seven hours after the Twin Towers collapsed, it too is mysteriously reduced to a pile of rubble; a night of revelry in Boston turns the Cocoanut Grove nightclub into an inferno that kills over 400 people in 1942; and the science of demolition is put to the test and fails when a building in Rhode Island, the "Leaning Tower of Providence," stands its ground.

In this hour, we examine a massive oil tanker explosion that killed nine; a subway tunnel cave-in that swallowed part of Hollywood Boulevard; a freighter plane crash that destroyed an 11-story apartment building; an historic molasses flash flood; and a freeway ramp collapse that buried construction workers in rubble and concrete. Investigators from NTSB, Cal/OSHA, and Boeing, structural and geo-technical engineers, and historians explain how so much could have gone wrong, costing so many lives. And aided by computer graphics, footage and photos of the disasters, and visits to the locations today, we show viewers what caused these catastrophes and what design experts have done to make sure they never happen again.

What does it take to construct a building that will cover an entire city block? Try 13,000 tons of steel, 36,000 cubic yards of concrete, enough wire and cables to stretch from New York City to Boston, hundreds of professionals, and two years of blood, sweat, and swearing. Welcome to Skyscraper 101. In the first hour, we see how architects design a building and check out the new California Department of Transportation headquarters--a project we've followed for two years.

For two years, we've followed construction of the new California Department of Transportation headquarters in downtown LA--a massive 700,000 square-foot office building--and we use this building as a specific example to illustrate construction problems of mega-skyscrapers, from the Empire State Building to the Sears Tower to the TAIPEI 101. In hour two, the steel skeleton is up, but before the windows and walls go up, the general contractor tests the exterior wall system by building a mockup.

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. And we'll see the evolution from freight hoists to today's fastest high-speed pressurized elevators and, on the cooler side, the evolution from ice refrigeration to 3,000-ton chillers. We meet Bobby, the manlift operator and the building site's standup comedian, and travel to Taiwan to visit the world's fastest elevators in the TAIPEI 101.

For two years, we've followed the construction of the new California Department of Transportation headquarters in LA to learn the architectural, structural, and mechanical challenges of building mega-skyscrapers. In hour four, as we're installing the veins and arteries of the building and wrapping up construction on CalTrans, we learn how development of electricity and indoor plumbing made skyscrapers possible--imagine needing to take an elevator down 70 stories to use the privy behind the building!

Join us for look into five engineering disasters... A dangerous cloud of gas explodes into Cleveland's worst fiery industrial disaster in 1944, killing 128 people. A dance competition turns deadly at the new Kansas City Hyatt in 1981, when a skywalk gives way and kills 114. In 1995, neighbors gaped at the spectacle of a $1.5-million San Francisco Bay area mansion breaking into bits as it fell into a massive sinkhole during a rainstorm. In 1931, one of the worst "natural" disasters ever occurred in the Yangtze River basin when six huge flood waves swept down the river destroying the insufficient dams and levees and killing at least 145,000 people. The "miracle mineral" that the US was built upon turns out to be an invisible killer--an estimated 10,000 people die each year from asbestos-related diseases.

In Milwaukee, 104 died after drinking contaminated tap water. At Texas A&M, a tradition turned tragic when a pile of bonfire logs collapsed onto its builders. Thousands of US soldiers expired in known WWII deathtraps--Sherman Tanks. In 1973, 14 men working on a 26-story building died when supports were removed from wet concrete. And in 1993, Denver's "dream" airport became a nightmare when its baggage-handling system ran amok. Aided by computer graphics, catastrophe footage, and visits to the locations today, MIT scientists, Center for Disease Control experts, WWII vets, bonfire builders, and construction engineers explain these tragedies and measures taken to prevent them in future.

In this hour, death seeps out of the ground into a neighborhood sitting on a toxic waste dump at Love Canal in New York; soldiers die during Desert Storm in 1991 when software flaws render Patriot Missiles inaccurate; on September 11, 2001, World Trade Center Building #7 wasn't attacked, but seven hours after the Twin Towers collapsed, it too is mysteriously reduced to a pile of rubble; a night of revelry in Boston turns the Cocoanut Grove nightclub into an inferno that kills over 400 people in 1942; and the science of demolition is put to the test and fails when a building in Rhode Island, the "Leaning Tower of Providence," stands its ground.

In this hour, we examine a massive oil tanker explosion that killed nine; a subway tunnel cave-in that swallowed part of Hollywood Boulevard; a freighter plane crash that destroyed an 11-story apartment building; an historic molasses flash flood; and a freeway ramp collapse that buried construction workers in rubble and concrete. Investigators from NTSB, Cal/OSHA, and Boeing, structural and geo-technical engineers, and historians explain how so much could have gone wrong, costing so many lives. And aided by computer graphics, footage and photos of the disasters, and visits to the locations today, we show viewers what caused these catastrophes and what design experts have done to make sure they never happen again.

What does it take to construct a building that will cover an entire city block? Try 13,000 tons of steel, 36,000 cubic yards of concrete, enough wire and cables to stretch from New York City to Boston, hundreds of professionals, and two years of blood, sweat, and swearing. Welcome to Skyscraper 101. In the first hour, we see how architects design a building and check out the new California Department of Transportation headquarters--a project we've followed for two years.

For two years, we've followed construction of the new California Department of Transportation headquarters in downtown LA--a massive 700,000 square-foot office building--and we use this building as a specific example to illustrate construction problems of mega-skyscrapers, from the Empire State Building to the Sears Tower to the TAIPEI 101. In hour two, the steel skeleton is up, but before the windows and walls go up, the general contractor tests the exterior wall system by building a mockup.

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. And we'll see the evolution from freight hoists to today's fastest high-speed pressurized elevators and, on the cooler side, the evolution from ice refrigeration to 3,000-ton chillers. We meet Bobby, the manlift operator and the building site's standup comedian, and travel to Taiwan to visit the world's fastest elevators in the TAIPEI 101.

For two years, we've followed the construction of the new California Department of Transportation headquarters in LA to learn the architectural, structural, and mechanical challenges of building mega-skyscrapers. In hour four, as we're installing the veins and arteries of the building and wrapping up construction on CalTrans, we learn how development of electricity and indoor plumbing made skyscrapers possible--imagine needing to take an elevator down 70 stories to use the privy behind the building!