Friction is necessary : If there is no friction between any two surfaces in contact, then the present day civilization will be no more- as we cannot even walk properly on the earth. There will be no fabrics and garments, no construction of buildings and no furniture, even no cooking and no vehicles. So friction is necessary. But too much friction causes a heavy loss of energy, wear and tear of machinery. Thus, the efficiency of machines will decrease tremendously. So, it is rightly said that friction is a necessary evil.
Friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.
friction is called a necessary evil because we cannot completly avoid it an actually it is used in many cases.
Friction is a necessary evil because:- a) It can't be completely avoided b) It is actually useful in many cases
Friction is not always evil; it is quite necessary for many things to work. But sometimes it can be a nuisance; specifically, friction tends to waste energy.
Loss of energy. Any way friction is a necessary evil
Yes necessary evil. If friction is totally absent then no wheel could roll on the road. No chance of walking on the floor. We cannot hold even the pen. Same time too much of friction would bring a terrible loss of energy.
because we cant walk , hold articles , we cant write and the construction of house is impossible. but there are some disadvantages in friction.
(1) It can't be completely avoided. (2) It is actually useful in many cases.
television "a necessary evil
The duration of Necessary Evil - film - is 1.45 hours.
yes home work is a necessary evil but we should protest about it
Computers are neither evil nor, depending on your needs, always necessary.
Necessary Evil - film - was created on 2008-12-31.
I just had a conversation with a friend of mine who claimed that it was never meant that a human being would take from the tree of good and evil which represents the law. The law was later given to the israelites and it was holy but it was never meant to be obeyed since no-one can live according to the law without sin.
Necessary Evil - Salem album - was created on 2007-06-19.
Social Stratification is an inevitable and necessary evil.
DN Angel is a Japanese Magna series which is also an anime on television. The actual phrase DN Angel is a play on words, it is supposed to represent the DNA that Daisuke has that causes him to turn into some evil object.
The origin of the phrase comes from the Bible. However, it's not "money is the root cause of all evil." The phrase is "The LOVE of money is the root of all evil." Basically, this means that greed causes us to do evil.
http://encarta.msn.com/dictionary_1861696741/necessary_evil.html Basically, calling something a "necessary evil" is one's way of rationalizing the act of doing something unacceptable/evil by saying that it is necessary. It could also mean something that is absolutely necessary to a country but in a sense it is evil.(truth be told, everything's evil in some sense except for god.)
Necessary Evil - Deborah Harry album - was created on 2007-09-15.
The Necessary Evil - 1925 was released on: USA: 17 May 1925
she was meant to be really evil but also really beautiful
yes industrialization is a necessary evil as we need industrialization to improve our economic growth but it is also degrading our environment as well as mankind.
Friction is what takes energy away from motion. If there was no friction, it would take a lot less energy (gas, fuel, electricity) to move things.