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Picea mariana, the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories . It is the official tree of Newfoundland and Labrador and is that province's most abundant tree.
A small circuit breaker typically has a manual control lever to switch the circuit off or reset a tripped breaker, while a larger unit may use a solenoid to trip the mechanism, and an electric motor to restore energy to springs (which rapidly separate contacts when the breaker is tripped).
A thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint "plink" sound) and re-closes when the temperature drops. The thermal switch may be a bimetallic strip , often encased in a tubular glass bulb to protect it from dust or short circuit .
SCRIBA, N.Y. (WSYR-TV) — The state’s largest and second largest nuclear power plants were tripped offline the morning of Monday, Sept. 23, after a small fire, the reactors’ owner tells ...
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Saxifraga is the largest genus in the family Saxifragaceae, containing about 473 species of holarctic perennial plants, known as saxifrages [1] [2] or rockfoils. [3] The Latin word saxifraga means literally "stone-breaker", from Latin saxum ("rock" or "stone") + frangere ("to break").
Red spruce is used for Christmas trees and is an important wood used in making paper pulp. It is also an excellent tonewood and is used in many higher-end acoustic guitars and violins, as well as sound boards. The sap can be used to make spruce gum. [11] Leafy red spruce twigs are boiled with sugar and flavoring to make spruce beer [16] or