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Craigslist headquarters in the Inner Sunset District of San Francisco prior to 2010. The site serves more than 20 billion [17] page views per month, putting it in 72nd place overall among websites worldwide and 11th place overall among websites in the United States (per Alexa.com on June 28, 2016), with more than 49.4 million unique monthly visitors in the United States alone (per Compete.com ...
A cryopump or a "cryogenic pump" is a vacuum pump that traps gases and vapours by condensing them on a cold surface, but are only effective on some gases. The effectiveness depends on the freezing and boiling points of the gas relative to the cryopump's temperature.
[12] [10] This initial expense must be weighed against the long-term benefits of a central vacuum, including the typical longer service life of the equipment, and negligible consumables cost if a filterless system is chosen. A central vacuum system is generally considered by building owners a permanent fixture of the building where it is ...
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Founded in 1884 as the Bean Spray Pump Company in Los Gatos, California [1] by orchardist John Bean. [2] The company's first product was a piston pump, which Bean invented the pump to spray insecticide on the many fruit orchards in the area. A Bean sprayer is on display at the Forbes Mill museum there. [3]
The availability of live bait and cost factor can inhibit the use of natural baits year round. [6] Anglers can get various live baits from tackle shops at the limitations of price and season. Other ways anglers get natural bait is through usual methods of fishing, e.g. hook and line, traps and casting nets. Once live bait has been obtained, it ...
Sentricon bait stations are installed in the soil, creating a protective perimeter around a property. These stations are baited with a cellulose material impregnated with noviflumuron, [6] a chitin synthesis inhibitor. When foraging, worker termites find the stations, eat the bait material, and then regurgitate it for colony nest mates to consume.