Licenciosidades

Qualquer bocadinho acrescenta, disse o rato, e mijou no mar.

"Não é da bondade do homem do talho, do cervejeiro ou do padeiro que podemos esperar o nosso jantar, mas da consideração em que eles têm o seu próprio interesse. Apelamos, não para a sua humanidade, mas para o seu egoísmo, e nunca lhes falamos das nossas necessidades, mas das suas vantagens"

Adam Smith (1776), Riqueza das Nações

terça-feira, outubro 11, 2005

Homens de guerra lusitanos

The Portuguese Man O' War (Physalia physalis), also known as the bluebottle, is commonly thought of as a jellyfish but is actually a siphonophore—a colony of four sorts of polyps.
A similar group of animals are the chondrophores. The Man O' War's float is bilaterally symmetrical with the tentacles at one end, while the chondrophores are radially symmetrical with the sail at an angle. Also the Man O' War has a siphon, while the chondrophores do not.
The Portuguese Man O' War has an air bladder; also known as a sail, that allows it to float on the surface of the ocean. It has no means of propulsion and is pushed by the
winds and the current. The bladder is actually a single large polyp, called the pneumatophore. The sail is filled with air, but may build up a high concentration of carbon monoxide (up to 90%). The animal can deflate to submerge; however this is not its normal state, generally doing so only long enough to avoid a threat.

fonte: wikipedia


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