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  2. Whippletree (mechanism) - Wikipedia

    en.wikipedia.org/wiki/Whippletree_(mechanism)

    The tree provides distributed mechanical support, reducing localised mechanical deflections, which in turn reduces optical distortion. [4] Unlike the applications described above, which are two-dimensional, the whippletrees in telescope mirror support cells are three-dimensional designs, [ 5 ] since the tree must support multiple points over an ...

  3. High lead logging - Wikipedia

    en.wikipedia.org/wiki/High_lead_logging

    Early on, it was customary to trim and top a tree making it into a 'spar pole' or 'spar tree' for the purpose of supporting the head blocks but gradually the use of wooden spars gave way over the 20th century to the use of steel spars stood up for the purpose. In any event the spars are supported by a number of guy wires. [1]

  4. Spar (tree) - Wikipedia

    en.wikipedia.org/wiki/Spar_(tree)

    Selecting a tree as a spar is a particularly important task, so the strength and importance of the spar came to hold symbolic meaning for early loggers of the West. The use of spar trees in logging is now rare, having been replaced since the 1970s by portable towers, called yarders , which can be erected on logging sites and moved as needed.

  5. Tree structure - Wikipedia

    en.wikipedia.org/wiki/Tree_structure

    A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree , although the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the bottom.

  6. Swing yarder - Wikipedia

    en.wikipedia.org/wiki/Swing_yarder

    The swing yarder has several drums to pull in the cables. The cables run up an angled boom and then to the far side of a setting. By using two cables set up like a clothes line, the rigging can be pulled out and logs can be pulled across a logging setting where the trees have been previously felled.

  7. Today's Wordle Hint, Answer for #1270 on Tuesday, December 10 ...

    www.aol.com/todays-wordle-hint-answer-1270...

    Today's Wordle Answer for #1270 on Tuesday, December 10, 2024. Today's Wordle answer on Tuesday, December 10, 2024, is PATIO. How'd you do? Next: Catch up on other Wordle answers from this week.

  8. Gunter rig - Wikipedia

    en.wikipedia.org/wiki/Gunter_rig

    Gunter rigged Lobster 12.5. Gunter rig is a configuration of sail and spars used in sailing. It is a fore and aft sail set abaft (behind) the mast. The lower half of the luff (front) of the sail is attached to the mast, and the upper half is fastened to a spar which is approximately vertical and reaches above the top of the mast.

  9. My Husband's Grandpa Cracked the Code to the Best-Ever ... - AOL

    www.aol.com/lifestyle/husbands-grandpa-cracked...

    A traditional snickerdoodle recipe includes unsalted butter, granulated sugar, eggs, all-purpose flour, cream of tartar, baking soda and salt.

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