Lifeboat Foundation

In the cold waters off the west coast of Vancouver Island, scientists have found a hidden oasis teeming with corals, sponges, and creatures more typical of warmer waters to the south.

The discovery is among the most significant finds from a two-week trip conducted by researchers with the Department of Fisheries and Oceans, the Nuu-chah-nulth Nations and other partner organizations. The expedition dropped a camera on a cable down about 2,000 metres into the depths as part of an examination of Explorer Seamount, Canada’s largest underwater volcano.

“We found a coral garden that is like something you would see in the tropics, with a large coral community home to fish and octopus like everything you would expect to see in Hawaii, but you find it here in Canada deep below the surface where the sun doesn’t reach,” said Dr. Cherisse Du Preez, marine biologist at Fisheries and Oceans Canada.

From the time we see Bambi’s mom bite the dust, we all know what death is. At least, we think we do. But the simple definition of death—that the body stops working—doesn’t take into account how weird our bodies actually are.

“We really know nothing about what happens when you die,” says Peter Noble, a former professor at the University of Alabama. Noble knows firsthand that surprises await scientists studying the end of life: he helped discover that long-dormant genes can spring into action hours or even days after an organism dies.

It’s amazing these plants exist at all.

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A Human Rights Watch review finds that mistreatment by guards, including the use of chemical sprays and electronic stun guns, has led to a number of deaths.

Don’t worry, this was a planned end for a tiny satellite that has been a huge success.

At 14:08 UTC on 31 July, Longjiang-2, also known as DSLWP-B, passed behind the Moon for the last time. Half an hour later, with an absence of new signals to indicate a reappearance, it was clear that the Moon had lost an orbiter and gained a new crater on its far side. According to a prediction by Daniel Estévez, the 50-centimeter-tall, 47-kilogram DSLWP-B satellite impacted at 14:20 UTC.

Not to worry—this was a planned measure to prevent potential collisions or debris for future missions. A maneuver performed 24 January lowered the periapsis of the satellite’s lunar orbit by about 500 kilometers, with orbital perturbations over time seeing the satellite impacting the Moon Wednesday after 432 days in lunar orbit.

Intelligence briefings, flying saucer sightings and psychic tests are all part of the archive.

Dec. 23, 1952 K. L. HANSEN 2,623,201

SYNCHRONOUS MOTOR Filed Aug. 5, 1950 s Sheets-Sheet 1 1 A0/d577i645 l i A? AZ v fl/Z INVEN TOR. M 13 Z. 351151 1? 2 m WWW; filth/way Dec. 23, 1952 K. L. HANSEN 2,623,201.

Most AC motors are induction motors. Induction motors are favored due to their ruggedness and simplicity. In fact, 90% of industrial motors are induction motors.

Nikola Tesla conceived the basic principles of the polyphase induction motor in 1883 and had a half horsepower (400 watts) model by 1888. Tesla sold the manufacturing rights to George Westinghouse for $65,000.

Most large ( 1 hp or 1 kW) industrial motors are polyphase induction motors. By polyphase, we mean that the stator contains multiple distinct windings per motor pole, driven by corresponding time-shifted sine waves. In practice, this is two or three phases. Large industrial motors are 3-phase. While we include numerous illustrations of two-phase motors for simplicity, we must emphasize that nearly all polyphase motors are three-phase. By induction motor, we mean that the stator windings induce a current flow in the rotor conductors, like a transformer, unlike a brushed DC commutator motor.