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2. Electromagnetic shielding - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_shielding

   Electromagnetic shielding is the process of lowering the electromagnetic field in an area by barricading it with conductive or magnetic material. Copper is used for radio frequency (RF) shielding because it absorbs radio and other electromagnetic waves. Properly designed and constructed RF shielding enclosures satisfy most RF shielding needs ...

3. Cathodic protection - Wikipedia

   en.wikipedia.org/wiki/Cathodic_protection

   Cathodic protection ( CP; / kæˈθɒdɪk / ⓘ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. [1] A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode. The sacrificial metal then corrodes instead ...

4. Knob-and-tube wiring - Wikipedia

   en.wikipedia.org/wiki/Knob-and-tube_wiring

   Electrical installations. Knob-and-tube wiring (sometimes abbreviated K&T) is an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s. [1] [2] It consisted of single-insulated copper conductors run within wall or ceiling cavities, passing through joist and stud drill-holes via ...

5. Jane Fraser is trying to pull chronically struggling ... - AOL

   www.aol.com/jane-fraser-trying-pull-chronically...

   Three years ago, as the long-struggling Citigroup was in a tailspin over a billion-dollar fat-finger error, the bank announced its next CEO, Jane Fraser.

6. US heat wave turns deadly as high temperatures continue to ...

   www.aol.com/persistent-heat-wave-us-shatters...

   July 8, 2024 at 7:27 PM. (CNN) — More than 50 million people across the US are under heat alerts amid a brutal heat wave that has shattered records and caused multiple deaths across the West. As ...

7. Stocks hammered after this week's labor data shows investors ...

   www.aol.com/finance/stocks-hammered-weeks-labor...

   Across the first two days of August, the S&P 500 ( ^GSPC) slid 3.2% while the Nasdaq Composite ( ^IXIC) sank 4.7%. The moves extended a previous drawdown in the Nasdaq, with the index entering a ...