00:00These are scenes from the latest earthquake in Japan, measuring 7.6 in magnitude.
00:08And despite the power of the repeated tremors in Japan, one question remains.
00:14How does the ground shake this violently, without Japanese cities turning into rubble, as happens in other countries?
00:22The answer lies in a simple idea. Let the building move with the earthquake, and do not make it resist.
00:32Meaning that Japan relies on a fundamental engineering principle.
00:36The most rigid building is the most vulnerable to collapse, while the flexible building that sways with the earthquake is the one that survives.
00:46Buildings are placed on rubber foundations, spherical bearings, or systems that allow the structure to sway with the tremors, instead of cracking under pressure.
00:57And this experiment we are seeing now explains the idea very simply.
01:02And, of course, after every major earthquake that strikes Japan, engineers study the faults, and the regulations are updated.
01:16Whether it…
01:17When it's isolated, it's a dream of being collapsed.
01:19Unless it's possible, you know the problem.
01:21Or, if the Denis of Paris or apromise will continue to enjoy its adventure, it's a dream of being exploded.
01:24At least it's the case.
01:25It's in the real place, it's a dream of being lost.
01:26And you know that, of course, you know, there's a dream of being lost.
01:29There's a dream of being lost, but you know what is the dream of being lost.
01:31It's one of being lost and um distracted.
01:32To be a dream.
01:33It's a dream of being lost.
01:35A dream of being lost is off-standing.
01:37It's a dream of becoming lost andого the day of being lost by the death.
01:40Off to being lost by the time is the dream of being lost.
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