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  2. I-beam - Wikipedia

    en.wikipedia.org/wiki/I-beam

    The designation for each is given as the approximate height of the beam, the type (beam or column) and then the unit metre rate (e.g., a 460UB67.1 is an approximately 460 mm (18.1 in) deep universal beam that weighs 67.1 kg/m (135 lb/yd)).

  3. Span (engineering) - Wikipedia

    en.wikipedia.org/wiki/Span_(engineering)

    Span is a significant factor in finding the strength and size of a beam as it determines the maximum bending moment and deflection. The maximum bending moment M m a x {\displaystyle M_{max}} and deflection δ m a x {\displaystyle \delta _{max}} in the pictured beam is found using: [ 2 ]

  4. Ship measurements - Wikipedia

    en.wikipedia.org/wiki/Ship_measurements

    Beam – A measure of the width of the ship. There are two types: Beam, Overall (BOA), commonly referred to simply as Beam – The overall width of the ship measured at the widest point of the nominal waterline. Beam on Centerline (BOC) – Used for multihull vessels. The BOC for vessels is measured as follows: For a catamaran: the ...

  5. Beam diameter - Wikipedia

    en.wikipedia.org/wiki/Beam_diameter

    Five definitions of the beam width are in common use: D4σ, 10/90 or 20/80 knife-edge, 1/e 2, FWHM, and D86. The beam width can be measured in units of length at a particular plane perpendicular to the beam axis, but it can also refer to the angular width, which is the angle subtended by the beam at the source.

  6. Structural steel - Wikipedia

    en.wikipedia.org/wiki/Structural_steel

    Structural steel shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices, etc., are regulated by standards in most industrialized countries. Most structural steel shapes, such as Ɪ-beams , have high second moments of area , which means they are very stiff in respect to their cross-sectional area and ...

  7. 5 Things to Avoid When You Have Alopecia Areata - AOL

    www.aol.com/5-things-avoid-alopecia-areata...

    2. Excessive Stress. Stress is a natural, normal part of the human experience, and your body knows how to handle it. When you’re under stress, your body releases stress hormones that activate ...

  8. Panera Has 3 Festive Holiday Soup Cups You Need to See

    www.aol.com/panera-3-festive-holiday-soup...

    Courtesy of Noah Fecks / Panera Bread. The soup cups' designs are an homage to elements of Panera's soups: tomatoes, broccoli cheddar, and the chain's popular bread bowls.

  9. The 25 best last-minute gifts that will still arrive by Christmas

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    This one from Lodge is only $45 in the 5.5-quart size, perfect for pasta, soup, and braised meats. It comes in three colors — red, white, and blue. $45 at Walmart

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