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A High-volume low-speed fan. A high-volume low-speed (HVLS) fan is a type of mechanical fan greater than 7 feet (2.1 m) in diameter. [1] HVLS fans are generally ceiling fans although some are pole mounted. HVLS fans move slowly and distribute large amounts of air at low rotational speed– hence the name "high volume, low speed."
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More heavy-duty printers can print much faster; for example, a Sinfonia Colorstream S2 dye-sublimation printer can print a 4x6 in (10x15cm) photo in as little as 6.8 seconds, and a Mitsubishi CP-D707DW is known to have a faster print of under 6 seconds for similar size.
[[Category:Film fan user templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Film fan user templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.
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Handheld Brise fan from 1800. A handheld fan, or simply hand fan, is a broad, flat surface that is waved back-and-forth to create an airflow. Generally, purpose-made handheld fans are folding fans, which are shaped like a sector of a circle and made of a thin material (such as paper or feathers) mounted on slats which revolve around a pivot so that it can be closed when not in use.
The Yale Bright Star Catalogue has been steadily enhanced since the Yale astronomer Frank Schlesinger published the first version in 1930; even though the YBS is limited to the 9110 objects already in the catalog, the data for the objects already listed is corrected and extended, and it is appended with a comments section about the objects. The ...