Most curious scientific news of 2006
2007/01/07 Galarraga Aiestaran, Ana - Elhuyar Zientzia
First of all, it is explained that whales use dialects. Using submarine microphones, scientists have shown that groups of blue whales living in different parts of the Pacific do not use the same sounds to communicate with each other.
The whales emit sounds combining different tones, pulses and notes and the differences between populations are very high. Researchers do not know whether it is genetics related, whether there will be other reasons, or whether some populations use a unified language to communicate with others.
New seas, surface letters and spiders
Northwest Ethiopia and Eritrea separate from the continent (Photo: ANDÉN)
Second, another sea appears. This is the redistribution of the Red Sea. Satellite images show that the Arab and African tectonic plate is moving away from each other. According to scientists, if north-western Ethiopia and Eritrea separate from the continent, another sea may emerge.
What appears in the third place is nothing simple: using wave generators, researchers have managed to write in the water. For this purpose, a special tank called AMOEBA has been designed. With 50 wave generators, they have been able to perform all the letters of the Latin alphabet in surface and some of the Japanese alphabet.
The following news of the classification is starring the spider of Physoclus globosus. It seems that the female spider of this species shouts at the copular. Through these screams he asks his male to tighten his internal sexual organs. The more tight, the more possibilities the male has to fertilize the eggs of the female.
Laboratory and exterior
The prestigious presenter Steve Irwin dies drowned by a bastanga. (Photo: D. D. Bradwell)
And in fifth place appears a laboratory experiment in which, using sperm from male mice, they create rats in a laboratory experiment. It is the first time that, using cells of a species, breeding of another species has been born. To do this, they took from the rats the stem cells related to the production of sperm and applied them in the testicles of the mice. By using the sperm of these mice, rat eggs have been fertilized and rats have been born. Researchers expect the experiment to serve to create sperm from endangered species.
The news that has been classified in sixth place is foreign to laboratories. Steve Irwin, a prestigious Australian television presenter, dies after being chopped in the heart by a bastanga. The bastangas have poison, but not so much as to kill a person. For this reason, doctors believe that he died from perforation of the heart.
Seventh: A man has been removed from his penis transplanted two weeks after the operation. It seems that the operation went well, but it caused psychological problems both to the man and his wife. Finally decided to remove the penis.
The last three deal with invisibility, smell and the Amazon River. These are also very curious for the web of Live Science. For more information, the news can be found on the web page, more complete and deep than here. And in those cases it is almost essential to end this: To see!
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