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2. Decibel - Wikipedia

   en.wikipedia.org/wiki/Decibel

   The decibel originates from methods used to quantify signal loss in telegraph and telephone circuits. Until the mid-1920s, the unit for loss was miles of standard cable (MSC). 1 MSC corresponded to the loss of power over one mile (approximately 1.6 km) of standard telephone cable at a frequency of 5000 radians per second (795.8 Hz), and matched closely the smallest attenuation detectable to a ...

3. Sawhorse - Wikipedia

   en.wikipedia.org/wiki/Sawhorse

   Lightweight, stack-able, saw horses from the book Agricultural Woodworking: a group of problems for rural and graded schools ... by Louis Michael Roehl. 1916. In woodworking, a saw-horse or sawhorse (saw-buck, trestle, buck) [1] is a trestle structure used to support a board or plank for sawing. A pair of sawhorses can support a plank, forming ...

4. dBrn - Wikipedia

   en.wikipedia.org/wiki/DBrn

   The symbol dBrn or dB(rn) is an abbreviation for decibels above reference noise.. Weighted noise power in dB is referred to 1.0 picowatt.Thus, 0 dBrn = -90 dBm.Use of 144 line, 144-receiver, or C-message weighting, or flat weighting, can be indicated in parentheses.

5. Riving knife - Wikipedia

   en.wikipedia.org/wiki/Riving_knife

   A riving knife to the left of the blade on table saw. A riving knife is a safety device installed on a table saw, circular saw, or radial arm saw used for woodworking. Attached to the saw's arbor, it is fixed relative to the blade and moves with it as blade depth is adjusted. [1]

6. Steak has many nutrients, but here's why you should avoid ...

   www.aol.com/steak-many-nutrients-heres-why...

   Where to shop today's best deals: Kate Spade, Amazon, Walmart and more

7. Sound exposure - Wikipedia

   en.wikipedia.org/wiki/Sound_exposure

   The commonly used reference sound exposure in air is [2] E 0 = 400 μ P a 2 ⋅ s . {\displaystyle E_{0}=400~\mathrm {\mu Pa^{2}\cdot s} .} The proper notations for sound exposure level using this reference are L W /(400 μPa 2 ⋅s) or L W (re 400 μPa 2 ⋅s) , but the notations dB SEL , dB(SEL) , dBSEL, or dB SEL are very common, even if ...

8. The most dangerous roads during Christmas and New Year's Eve

   www.aol.com/finance/most-dangerous-roads-during...

   While 2005 to 2009 saw a steady decline in fatalities followed by a relatively flat decade, 2022 was the worst year on record since 2005. ... California: 17 (population 2.47M) US-19 in Pasco ...

9. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

   www.aol.com/today-nyt-strands-hints-spangram...

   According to the New York Times, here's exactly how to play Strands: Find theme words to fill the board. Theme words stay highlighted in blue when found.