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2. Twilight - Wikipedia

   en.wikipedia.org/wiki/Twilight

   Twilight occurs according to the solar elevation angle θ s, which is the position of the geometric center of the Sun relative to the horizon. There are three established and widely accepted subcategories of twilight: civil twilight (nearest the horizon), nautical twilight, and astronomical twilight (farthest from the horizon).

3. Low-flow fixtures - Wikipedia

   en.wikipedia.org/wiki/Low-flow_fixtures

   Kitchen and bathroom faucets were limited to a flow rate of 2.2 gpm (gallons per minute) at 60 psi, and residential shower heads were limited to a flowrate of 2.5 gpm at 80 psi. [ 3 ] In response to an increasing number of water shortages and increased water utility rates there has been recent legislation by many states leading the way in water ...

4. Dusk - Wikipedia

   en.wikipedia.org/wiki/Dusk

   The time of dusk is the moment at the very end of astronomical twilight, just before the minimum brightness of the night sky sets in, or may be thought of as the darkest part of evening twilight. [4] However, technically, the three stages of dusk are as follows: At civil dusk, the center of the Sun's disc goes 6° below the horizon in the ...

5. Sky brightness - Wikipedia

   en.wikipedia.org/wiki/Sky_brightness

   Twilight (both dusk and dawn) is divided into three 6° segments that mark the Sun's position below the horizon. At civil twilight , the center of the Sun's disk appears to be between 1/4° and 6° below the horizon.

6. Sink - Wikipedia

   en.wikipedia.org/wiki/Sink

   A sink/basin in a bathroom Enamel washbowl and jug Sink in Croatian National Theater in Zagreb, Croatia. A sink is a bowl-shaped plumbing fixture for washing hands (also known as washbasin in the UK), dishwashing, and other purposes. Sinks have a tap (faucet) that supplies hot and cold water and may include a spray feature to be used for faster ...

7. Doctors Say This Is How You Can Loosen and Clear Mucus From ...

   www.aol.com/lifestyle/doctors-loosen-clear-mucus...

   Dr. Watkins also reminds us that the best way to prevent respiratory infection is to get the flu, COVID-19, and RSV vaccines. “Don’t wait, the life you save can be your own.” “Don’t wait ...