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Some electric eels coordinate attacks to zap their prey
Publicado em 14 de janeiro de 2021
The knifefishes were thought to dine alone, but in the Amazon, hundreds hunt together
One Volta’s electric eel — able to subdue small fish with an 860-volt jolt — is scary enough. Now imagine over 100 eels swirling about, unleashing coordinated electric attacks.
Such a sight was assumed to be only the stuff of nightmares, at least for prey. Researchers have long thought that these eels, a type of knifefish, are solitary, nocturnal hunters that use their electric sense to [...]
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Experiment reverses the direction of heat flow - and time
Publicado em 10 junho 2019Inversion Of Heat And Time A crucial experiment that had a major impact on the scientific environment, published here was published by a peer-reviewed scientific journal. The delay in publication may be explained by the effects of the international team led by Brazilian physicists: they have reversed the sense of heat and in doing so have shown that the concept of the time arrow can be seen as a relative concept , not necessarily traveling inescapably from the past into the [...]ver notícia