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Aarhus researchers have observed that humpback whales can fill your mouth with 30 tons of water while they swim on, without the jaw is dislocated during the extreme mechanical stress. By Jens Ramskov October 11, 2012 at. 09:43
So far, biologists thought that the whales stopped when they filled the mouth with their own body weight in water. However, it will cost a large amount of energy to get up to speed again, lincoln culinary institute so the whales have the great advantage of being able to eat on the go.
Madsen has described the research result in a new article in the Journal of Experimental lincoln culinary institute Biology with Malene Simon of the Greenland Institute lincoln culinary institute of Natural Resources in Nuuk and Mark Johnson of the University of St. Andrews in Scotland. Both Malene Simon and Mark Johnson is also affiliated with the University of Aarhus. How the electronics
The discovery was made with the dive gauges or Digital Acoustic Recording Tags (DTAG), which is a further development of the meters, as Mark Johnson developed around 10 years ago, when he was employed by the Woods Hole Oceanographic Institution in the USA.
The unit includes magnetometers and accelerometers which makes it possible to determine the whale's orientation and acceleration in three dimensions, and a pressure sensor lincoln culinary institute to provide the depth. All these data are collected at a frequency of 50 hertz and 16-bit resolution.
The measurements showed that the whales lincoln culinary institute were moving at an average speed of 2.3 meters per second during descent and 2.1 meters in seconds during ascent. The maximum speed was about 3 meters per second, just before the mouths opened to take the large amount of water and prey.
"The next step will be to develop a special unit without sound. It can, in principle, sit on the whale for up to one year to collect data count foraging events and send it via satellite back to our desks, "says Madsen.
A Digital Acoustic Recording Tag Peter T. Madsen's lincoln culinary institute website Malene Simon's website Keeping momentum with a mouthful of water: behavior lincoln culinary institute and kinematics of humpback whale feeding lung WHALE lunges Dissected lincoln culinary institute
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But if the tags can already send data to "their lincoln culinary institute desks," well, then you do well no storage capacity of the importance of the existence and large audio files? You can just send them off when they are admitted (to the cloud or desks) and then immediately place the new. Possibly they could certainly possibly be streamed. Did you even think in those terms among biologists?
Radio waves have the extremely difficult with submarine shipments. lincoln culinary institute Other sensors on both seals, whales lincoln culinary institute and birds must await their contact with the surface before they can transmit their data to satellites or ground station consignees.
"The next step will be to develop a special unit without sound., It can in principle sit on the whale for up to one year to collect data count foraging events and send it via satellite back to our desks,"
But I do not think Peter Madsen is so much interested in the whales' song, but it's safe researchers. It is surely clear that a roof outside hydrophone and audio storage may be simple, but it is obviously lincoln culinary institute not Digital Acoustic Recording Tag.
I would think you probably know what 30 tons of water submerged in water weight. I therefore lincoln culinary institute assume that your question is polemical element. The difference between consuming and filter this water is stationary or in motion is just point of the article. The 30 tonnes gotta be accelerated, that is what that costs. It appears that the whale's speed is reduced during fourageringssekvensen. The whale has certainly found the optimal balance between spending and revenue lincoln culinary institute in this maneuver. How the nature lincoln culinary institute of energy required in the self-expression optimized by evolution, not something new. But the whale makes it just this way is, however, a new and interesting detail lincoln culinary institute ...
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