In 1912 airships and balloons, powered and unpowered, were being developed to explore, to entertain, to travel, and to wage war. Aerostats (any lighter-than-air craft) remained highly sensitive to weather and many were floated by flammable hydrogen (at least until the destruction of the Hindenburg in May 1937) but despite the limitations, great hopes were placed on these frail craft. [More]
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Feed SubscriptionTwin Towers Forensic Investigation Helps Revise Building Codes, Despite Critics
Even veteran disaster investigators were stunned by the fall of the Twin Towers on September 11, 2001 .
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