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2. ASTM A992 - Wikipedia

   en.wikipedia.org/wiki/ASTM_A992

   ASTM A992 steel is a structural steel alloy often used in the US for steel wide-flange and I beams. Like other carbon steels, the density of ASTM A992 steel is approximately 7850 kg/m 3 (0.2836 lb/in 3 ). ASTM A992 steel has the following minimum mechanical properties, according to ASTM specification A992/A992M.

3. Refrigerator - Wikipedia

   en.wikipedia.org/wiki/Refrigerator

   Globally. Food in a refrigerator with its door open. A refrigerator, colloquially fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the ...

4. Door frame - Wikipedia

   en.wikipedia.org/wiki/Door_frame

   A door frame, window frame, door surround, window surround, or niche surround is the architectural frame around an aperture such as a door or window. This may consist of separate pieces including jambs (side pieces) and lintel (top piece). A doorway may include side lights and/or a transom beside or above the door; the framing around the door ...

5. The preterm birth rate is up 8% from 2014 - AOL

   www.aol.com/preterm-birth-rate-8-2014-173000350.html

   In 2022, 1 in 10 babies born in the U.S. were premature, an 8% increase since 2014 after a steady decline in the early 2010s. Babies born at less than 37 weeks of gestation are considered preterm ...

6. Dilution refrigerator - Wikipedia

   en.wikipedia.org/wiki/Dilution_refrigerator

   The 3 He enters the cryostat at a pressure of a few hundred millibar. In the classic dilution refrigerator (known as a wet dilution refrigerator), the 3 He is precooled and purified by liquid nitrogen at 77 K and a 4 He bath at 4.2 K. Next, the 3 He enters a vacuum chamber where it is further cooled to a temperature of 1.2–1.5 K by the 1 K ...

7. FTC orders 8 companies to provide information on ... - AOL

   www.aol.com/news/ftc-orders-8-companies...

   July 23, 2024 at 6:15 PM. NEW YORK (AP) — The Federal Trade Commission has ordered information from eight companies that the agency says offer products and services that use personal data to set ...