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2. Knot density - Wikipedia

   en.wikipedia.org/wiki/Knot_density

   A carpet with a lesser knot density is better adapted to bold, geometric designs and can utilize a long pile for softer, more reflective surface that appeals to the sense of touch." [9] Hand-tying of knots is a very labour-intensive task. An average weaver can tie almost 10,000 knots per day. More difficult patterns with an above-average knot ...

3. Floor slip resistance testing - Wikipedia

   en.wikipedia.org/wiki/Floor_slip_resistance_testing

   Pendulum floor slip resistance tester. The ASTM E303-22 [1] (United States), BS EN 16165:2021, [2] BS EN 13036-4:2011 [3] (United Kingdom and many other European nations), AS 4663:2013 - Slip resistance of existing pedestrian surfaces, and AS 4586:2013 - Slip resistance classification of new pedestrian surface materials (Australia/New Zealand) slip resistance test standards define the pendulum ...

4. Tog (unit) - Wikipedia

   en.wikipedia.org/wiki/Tog_(unit)

   The tog is a measure of thermal insulance of a unit area, also known as thermal resistance. It is commonly used in the textile industry and often seen quoted on household items such as duvets , sleeping bags and carpet underlay .

5. Sierpiński carpet - Wikipedia

   en.wikipedia.org/wiki/Sierpiński_carpet

   The area of the carpet is zero (in standard Lebesgue measure). Proof: Denote as a i the area of iteration i. Then a i + 1 = ⁠ 8 / 9 ⁠ a i. So a i = (⁠ 8 / 9 ⁠) i, which tends to 0 as i goes to infinity. The interior of the carpet is empty. Proof: Suppose by contradiction that there is a point P in the interior of the carpet.

6. It's Time to Ditch These 10 Cleaning Tips From Grandma - AOL

   www.aol.com/lifestyle/time-ditch-10-cleaning...

   "Regular vacuuming removes the gritty dirt that can abrade carpet fibers and helps fluff the pile and remove dust," says Forté. urbazon - Getty Images Running vinegar through your iron to clear ...

7. Floor area - Wikipedia

   en.wikipedia.org/wiki/Floor_area

   Hong Kong law Chapter 123F, Building (Planning) Regulations, Regulation 23 sect 3 sub-paragraph (a) defined that: Subject to sub-paragraph (b), for the purposes of regulations 19, 20, 21 and 22, the gross floor area of a building shall be the area contained within the external walls of the building measured at each floor level (including any floor below the level of the ground), together with ...