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Humans unabashedly steal secrets from animals
Learningpost, David Canavan, Published on 29/06/2010
» There is no doubt that humans are incredible designers, architects and builders. From the Taj Mahal to the new Burj Khalifa, to the Airbus A380 to nuclear submarines, Homo sapiens are incredible. But many of our technologies were either inspired by or simply stolen from animals. In many circumstances, animals are aeons ahead of us in the building and design world.
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Sonar
Learningpost, David Canavan, Published on 26/01/2010
» I have a question for you, the answer to which I will give you at the end of this article. You are on a boat looking for a school of fish when your sonar finally finds a school. It emits a "ping" that travels at the speed of sound, which is about 1,500 metres per second in water, and the reflected sound is received half a second later. Using the formula distance equals to speed multiplied by time, work out how deep the fish are, but be careful - there is a catch (pun intended).
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