*blooorp*

Ark Nova, Japan

Ark Nova was created as a result of joint efforts of British sculptor Anish Kapoor and Japanese architect Arata Isozaki and it is the only inflatable concert hall currently in the world.

[Found here, h/t Gorehound.]

A Da Vinci Bridge – 15th Century Engineering

Okay 1502 AD is technically the 16th Century, but the engineering was already in existence.

VERY cool – You can build it on the spot if there’s available timber, no connectors required, and you can knock it down and take it with you once your army has crossed the stream, arroyo, ravine or ditch. Here’s one in use (with planks installed):

This kid constructed one without notches or connectors, using friction and compression only.

[Top image from Da Vinci. 2nd image from here, video from here, links found in here.]

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