Реальная история о самом масштабном ограблении в Великобритании. Налётчикам удалось вынести из надёжно защищённого банковского хранилища наличные и ценности на сумму в 200 миллионов фунтов. Воспользовавшись своим богатым жизненным опытом, преступники придумали отличный план, в котором рассчитали каждый шаг буквально по минутам. Это дерзкое ограбление наделало много шуму и сделало всех его участников «знаменитостями».
When it comes to spotting prey, sharks and rays have a secret sense beyond sight and smell. Tiny goo-filled organs called Ampullae of Lorenzini detect the invisible electric fields produced by all living creatures.
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How do Sharks and Rays Sense Electric Fields?
Most animals don’t have the ability to detect electric fields. But sharks, rays, skates and sawfish — members of a group called Elasmobranchii — are masters of detecting electric signals. It’s one of their defining features. Elasmobranchs have specialized organs called Ampullae of Lorenzini. These tiny structures allow them to home in on weak bioelectric fields generated by nearby prey.
Elasmobranch’s electrosensory organs are named after a 17th century Italian physician, Stefano Lorenzini, who first identified them while dissecting an electric ray. Lorenzini noticed dozens of tiny pores around the animal’s mouth. Each of the pores led to jelly-filled canals that ended in pocket-like structures that he called ampullae, the Latin word for a type of round-bottomed flask.
Animals emit low frequency electric fields due to a process known as osmoregulation. This process allows the concentration of ions (charged atoms or molecules) to flow between the inside of our bodies and the outside. In order for our cells to stay intact, the flow of ions needs to be balanced.
But balanced doesn’t necessarily mean equal. The concentration of ions within a shrimp’s body is much lower than that of the sea water it swims in. Their voltage, or potential difference generated between the two concentrations across “leaky” surfaces, can then be detected by the ampullae.
The hammerhead sharks ability to detect electromagnetic fields gives it a «vision» unlike any other animal and allows for incredibly precise predation. | www.discovery.com/tv-shows/shark-week/
Cant get enough sharks? Visit the Discovery Sharkopedia to learn more about these fascinating creatures and find out how you can help in conservation efforts! sharkopedia.discovery.com/
Один из дата-центров Яндекса расположен в городе Мянтсяля в шестидесяти километрах от Хельсинки. В нём всё, даже здание, наша команда спроектировала и построила с нуля. За 19 лет мы прошли большой путь от сервера под столом одного из сотрудников до строительства собственных дата-центров. Как работает самый энергоэффективный дата-центр Яндекса и чем он помогает местным жителям, смотрите в фильме.
Joe Kava, VP of Googles Data Center Operations, gives a tour inside a Google data center, and shares details about the security, sustainability and the core architecture of Googles infrastructure.