'Mini-Ark' invented for tsunamis

Japanese inventors have come up with a novel way for residents to save themselves if the country is struck by another deadly tsunami: a mini Ark that looks like a giant tennis ball.

Cosmo Power says it already has orders for 600 of its "Noah" shelters, which have a small lookout window and breathing holes on top, and sell for $4000 each.

It is hoped the enhanced fibreglass capsules would be able withstand the destructive forces of a tsunami, like that which ravaged Japan's northern coast. Cosmo says the shelter has survived many crash tests.