Upbeat, engaging e-learning online video
Description
Vocal Characteristics
Language
EnglishVoice Age
Middle Aged (35-54)Accents
British (General)Transcript
Note: Transcripts are generated using speech recognition software and may contain errors.
in 1956. Architect Frank Lloyd Wright proposed a mile high skyscraper. Soon that may finally become a reality. So how would we build something that tall today? In any building, each floor needs to be able to support the floors on top of it. Higher we build, the greater the pressure from the upper floors onto the lower ones. So today's concrete is reinforced with steel fibres for strength. The concrete in the world's tallest tower, Dubai's Burj Khalifa Khun, withstand about 8000 tonnes of pressure per square metre.