Year10
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Nail clippers were invented by foreigners in the century. The principle should come from scissors + file. This is a very simple lever principle. There are basically three types of lever principles. The first type of lever is for example Scales, scissors, pliers, etc. The second type of levers include corkscrews and nutcrackers, and the third type of levers include hammers, tweezers, etc. When there were no nail clippers, people used scissors to cut or grind their long nails. Nail clippers were a convenient invention that benefited mankind. Blessed the whole world.
b b.//_bb_.) Chinese name Nail Clipper Time Century Principle Leverage Principle Structure Scissors, Filer
< - b.rr/_.) - Introduction
Nail scissors are also called nails Knives and nail clippers are essential household items for human life.
Because human nails continue to grow, when they grow too long, it will inevitably cause inconvenience in the future, so there are grinders and gnawers,
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And The day still goes on. But when the inconvenience reaches the level of human laziness, humans will use the newly created scissors.
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Based on the principle of scissors, humans created nail clippers. The more you cut your nails, the smoother they become, and the more you cut them, the more beautiful they become, which of course ensures beauty. With the advancement of aesthetic awareness, various types of fingernails have been produced, and nails are painted colorfully.
The emergence of nail clippers has enriched the development of human aesthetics. All in all, the inconvenience caused by human nails is bound to occur with nail clippers.
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< - b.rr/_.) - Principle
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The principle should come from scissors + file, using the leverage principle, the leverage principle There are basically three types of levers. The first type of levers such as balances, scissors, pliers, etc. The second type of levers such as corkscrews and nutcrackers, and the third type of levers such as hammers, tweezers, etc.
< - b.rr/_.) - Purpose
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< - b.rr/_.) , -
According to the principle of scissors, humans Nail clippers were invented, and various types of cutting methods followed. The more you cut your nails, the smoother they become, and the more you cut them, the more beautiful they become, which of course ensures beauty. When aesthetic consciousness improves and various psychology such as jealousy occur, various kinds of fingernails are produced, and the nails are painted colorfully.
The emergence of nail clippers has enriched the development of human aesthetics. Of course, the uses of nail clippers are endless and will not be listed here. All in all, the inconvenience caused by human nails is bound to occur with nail clippers.
b 'How to choose baby nail clippers
b 'After knowing the advantages of baby nail clippers, parents may ask how to choose baby nail clippers. The key points when purchasing baby nail clippers are as follows.
, Safety of baby nail clippers
Safety is the first factor when choosing baby products. When choosing baby nail clippers, the first choice is one with a high safety factor. Whether the baby nail clippers are designed to prevent nail clippings from flying and whether they are designed to avoid cutting the baby's fingers requires careful observation and consultation.
, Raw materials for baby nail clippers
Some nail clippers are made of antibacterial materials. Although the price is high, it also gives the baby more safety guarantee. Even if they are not made of antibacterial materials, parents still need to check whether the nail clippers are made of defective plastic. Defective plastics usually have odor, uneven color, and the plastic is grainy and not smooth.
. Grasp of baby nail clippers
Some babies are uncooperative, and the mother may need to hold the nail clippers for a long time before she can cut the baby's nails. It is very important whether the nail clippers are easy to hold.
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