Contemporary CUT AND PASTE tools of the trade.

 by e.

Description and operation - A pair of scissors as the pair observed above consists of two pivoted blades. In lower-quality scissors like one's found at stores like Target or Kmart, the cutting edges are not particularly that sharp; it is primarily the shearing action between the two blades that cuts the material. In high-quality scissors like the ones observed above, the blades can be both extremely sharp, and tension sprung – to increase the cutting and shearing tension only at the exact point where the blades meet. The hand movement, like the hand seen above,  (pushing with the thumb, pulling with the fingers) can add to this tension. An ideal example is in high-quality tailor's scissors or shears, which need to be able to perfectly cut (and not simply tear apart) delicate cloths such as chiffon and silk. Mechanically, scissors are a first-class double-lever with the pivot acting as the fulcrum. For cutting thick or heavy material, the mechanical advantage of a lever can be exploited by placing the material to be cut as close to the fulcrum as possible while being careful to not cut yourself because accidents can happen. For example, if the applied force (at the blue handles) is twice as far away from the fulcrum as the cutting location (i.e., the point of contact between the blades), the force at the cutting location is twice that of the applied force at the handles. fulcrum. It's such great damn and underused word these days.

Scissors cut material by applying at the cutting location a local shear stress which exceeds the material's shear strength. Some scissors have an appendage, called a finger brace or finger tang (not to be confused with the word THANG), below the index finger hole for the middle finger to rest on to provide for better control and more power in precision cutting. A finger tang can be found on many quality scissors (including inexpensive ones) and especially on scissors for cutting my long hair (see hair scissors pictured above, again). In hair cutting, some claim the ring finger (or in my case ring fingers) is inserted where some place their index finger, and the little finger rests on the finger tang. For people who do not have the use of their hands, there are specially designed foot-operated scissors. Some quadriplegics can use a motorized mouth-operated style of scissor. The moral of the story here is to be very grateful if you have all of your existing limbs, also if you were able to purchase higher quality scissors rather than those at blue lit sales than that's a great thing/thang too, and finally that word

         bye e again.