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My Pilot, Whale (2014) is a short documentary film directed by Alexander and Nicole Gratovsky, demonstrating direct communication between a human and free pilot whales in the open ocean. The entire underwater part was shot without underwater breathing equipment; both the operator and the person appearing in the frame are freediving.
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Lithium from sea water would last 60 million years, however, and a more complicated fusion process using only deuterium would have fuel for 150 billion years. [140] To put this in context, 150 billion years is close to 30 times the remaining lifespan of the Sun, [ 141 ] and more than 10 times the estimated age of the universe.
Wind power consumes no fuel, and emits no local air pollution, unlike fossil fuel power sources. Onshore wind farms can have a significant visual impact. [ 115 ] Due to a very low surface power density and spacing requirements, wind farms typically need to be spread over more land than other power stations.
Mohave Generating Station, a 1,580 MW steam–electric power plant near Laughlin, Nevada fuelled by coal. A steam–electric power station is a power station in which the electric generator is steam-driven: water is heated, evaporates, and spins a steam turbine which drives an electric generator.
[34] 100 tonnes of ash a day had to be disposed of by ejecting it into the sea. [35] The work was relentless, dirty and dangerous, and although firemen were paid relatively well, [34] there was a high suicide rate among those who worked in that capacity. [36] Exhaust steam leaving the reciprocating engines was fed into the turbine, which was ...
The RSA SecurID authentication mechanism consists of a "token"—either hardware (e.g. a key fob) or software (a soft token)—which is assigned to a computer user and which creates an authentication code at fixed intervals (usually 60 seconds) using a built-in clock and the card's factory-encoded almost random key (known as the "seed").