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2. Ducted fan - Wikipedia

   en.wikipedia.org/wiki/Ducted_fan

   The duct increases thrust efficiency by up to 90% in most cases [citation needed], in comparison to a similar-sized propeller in free air. Ducted fans are quieter, and offer good opportunities for thrust vectoring.

3. Duct leakage testing - Wikipedia

   en.wikipedia.org/wiki/Duct_leakage_testing

   A duct leakage tester is a diagnostic tool designed to measure the airtightness of forced air heating, ventilating and air-conditioning (HVAC) ductwork. A duct leakage tester consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow.

4. Microducts - Wikipedia

   en.wikipedia.org/wiki/Microducts

   As indicated in GR-3155, cable is typically placed into the duct in one of three ways: It may be pre-installed by the duct manufacturer during the extrusion process. It may be pulled into the duct using a mechanically assisted or hand-drawn pull line. It may be blown into the duct using a high air volume cable blowing apparatus.

5. Satanic holiday celebration at Iowa Capitol 'forcibly ...

   www.aol.com/news/satanic-holiday-celebration...

   The Satanic Temple of Iowa was supposed to have a holiday event at the Iowa State Capitol on Saturday, but the event request was denied by Iowa Department of Administrative Services.

6. Aaron Rodgers Is ‘a Very Difficult Person to Understand ...

   www.aol.com/aaron-rodgers-very-difficult-person...

   PEOPLE spoke with the directors behind Netflix's new docuseries 'Aaron Rodgers: Enigma,' which began streaming Tuesday

7. Scottie Is Furious at Himself After Expertly Burying His Bone ...

   www.aol.com/scottie-furious-himself-expertly...

   Darn it! Someone buried this Scottie's bone in the backyard. Now he'll never find it! The poor dog was looking and looking for the missing item.

8. Duct (flow) - Wikipedia

   en.wikipedia.org/wiki/Duct_(flow)

   A duct system often begins at an air handler. The blowers in the air handler can create substantial vibration, and the large area of the duct system would transmit this noise and vibration to the inhabitants of the building. To avoid this, vibration isolators (flexible sections) are normally inserted into the duct immediately before and after ...

9. AK-100 (naval gun) - Wikipedia

   en.wikipedia.org/wiki/AK-100_(naval_gun)

   The AK-100 is a Soviet 100mm naval cannon, with a maximum rate of fire of 60 rounds per minute, firing a 26.8 kilograms (59 lb) munition in HE anti-air or HE fragmentation varieties. [ 3 ] [ 4 ] Specification