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  2. Structural channel - Wikipedia

    en.wikipedia.org/wiki/Structural_channel

    The structural channel is not used as much in construction as symmetrical beams, in part because its bending axis is not centered on the width of the flanges. If a load is applied equally across its top, the beam will tend to twist away from the web. This may not be a weak point or problem for a particular design, but is a factor to be ...

  3. Corrugated galvanised iron - Wikipedia

    en.wikipedia.org/wiki/Corrugated_galvanised_iron

    Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...

  4. Galvannealed - Wikipedia

    en.wikipedia.org/wiki/Galvannealed

    Production of galvannealed sheet steel begins with hot dip galvanization of sheet steel. After passing through the galvanizing zinc bath the sheet steel passes through air knives to remove excess zinc, and is then heated in an annealing furnace for several seconds causing iron and zinc layers to diffuse into one another causing the formation of zinc-iron alloy layers at the surface.

  5. Millions of Native people were enslaved in the Americas ... - AOL

    www.aol.com/news/millions-native-people-were...

    The enslavement of millions of Indigenous people in the Americas is a neglected chapter in U.S. history. Two projects aim to bring it to light.

  6. Hot-dip galvanization - Wikipedia

    en.wikipedia.org/wiki/Hot-dip_galvanization

    Galvanised hand rail Crystalline surface of a hot-dip galvanized handrail, known as "spangle" Protective effect: completely rusted letter box mounted to a hot-dip galvanized wall Steel strip coming out of the zinc pot of a continuous vertical hot-dip galvanizing line. Hot-dip galvanization is a form of galvanization.

  7. 'We’ll do it again, baby': Patrick Mahomes vs. Josh Allen ...

    www.aol.com/sports/ll-again-baby-patrick-mahomes...

    Bury the league. Freeze it over. Leave it for aliens to unearth in 10,000 years. Brady versus Manning will be the Achilles versus Hector of the NFL’s enduring legends.

  8. 19 Foods That Are Banned in America - AOL

    www.aol.com/finance/19-foods-banned-america...

    The Weather Channel. These Cities Are Seeing The Most Spring Warming In The US. Weather. The Weather Channel. Spring Tornado Ramp-Up: What You Need To Know. Advertisement. Advertisement.

  9. Galvanic isolation - Wikipedia

    en.wikipedia.org/wiki/Galvanic_isolation

    A transformer is the most widespread example of galvanic isolation. An opto-isolator is a very popular method of isolation in digital circuits. Cross-section of dual in-line package opto-isolators.