Search results
Results from the WOW.Com Content Network
Brannock Device [1] Brannock Device at shoe museum in Zlín, Czechia The Brannock Device is a measuring instrument invented by Charles F. Brannock for measuring a person's shoe size . Brannock spent two years developing a simple means of measuring the length, width, and arch length of the human foot .
Right-hand rule for cross product. The cross product of vectors and is a vector perpendicular to the plane spanned by and with the direction given by the right-hand rule: If you put the index of your right hand on and the middle finger on , then the thumb points in the direction of . [4] Fleming's right hand rule
The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long.
At a sale price like $44, shoes like this aren’t going to last long. Just think of all the use you’ll get out of this all-year pair — and all the miles you’ll walk, pain-free!
Following the patent and release of Harold's Long Scale calculator featuring two knobs on the outside rim in 1914, he designed the Magnum Long Scale calculator in 1927. [ 6 ] [ 7 ] As the name "Magnum" implies, it was a fairly large device at 4.5 inches in diameter—about 1.5 inches more than Fowler's average non-Magnum-series calculators. [ 8 ]
A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.
The Earth Shoe (also known as the Kalsø Earth Shoe) was an unconventional style of shoe invented circa 1957 by Danish yoga instructor and shoe designer Anna Kalsø. [ 1 ] [ 2 ] Its unique "negative heel technology" [ citation needed ] design featured a sole that was thinner at the heel than at the forefoot, so that when wearing them, one ...
The Goodyear welt process is a machine-based alternative to the traditional hand-welted method (c. 1500) for the manufacture of footwear, allowing them to be resoled repeatedly. The upper part of the shoe is shaped over the last and fastened on by sewing a leather, linen or synthetic strip (also known as the "welt") to the inner and upper sole.