Question

Почему у ножей и ножниц режущие части должны быть остро заточены​

Answer 1

Ответ:

У таких изделий как ножи, не в зависимости от предназначения, столовые, хозяйственные, ремесленно-промысловые - их режущие части должны быть остро заточены. А все для того, что бы клинок отлично выполнял свою задачу. Например, резал бумагу, мясо, хлеб т.д. С ножницами все тоже самое

Answer 2

Why should the cutting parts of knives and scissors be sharp?

The cutting parts of knives and scissors should be sharp for several reasons:

1. Efficiency: Sharp cutting edges allow knives and scissors to cut through materials with less effort and force. When the blades are sharp, they can easily slice through objects, making tasks like cutting food or paper much easier and quicker.

2. Precision: Sharp blades provide better control and precision. They allow for cleaner and more accurate cuts, which is especially important when working with delicate or intricate materials. Dull blades, on the other hand, can cause tearing or crushing of the material, leading to imprecise cuts.

3. Safety: Contrary to what one might think, sharp blades can actually be safer than dull ones. When using a sharp knife or scissors, less force is required to cut, reducing the risk of slipping and accidentally injuring oneself. Dull blades, on the other hand, may require more force, increasing the chances of accidents.

4. Longevity: Sharp blades tend to last longer than dull ones. When the cutting edges are sharp, they are less likely to become damaged or deformed during use. Additionally, sharp blades can be easily maintained and sharpened when necessary, prolonging their lifespan.

It is important to note that while sharp blades offer these benefits, they also require proper handling and care to ensure safety. Always exercise caution when using sharp objects and keep them out of reach of children.