Why was the wheel a great invention?
i theory it develop into the Greeks that invented guy's maximum substantial invention, the wheel even though it may no longer be so straightforward as that as there are not any patents and as with all historic evidence it comes all the way down to interpretation. you gained't get a instantly answer as there are diverse reviews - some archaeologists say, it develop into likely invented in round 8000 BC in Asia. The oldest wheel straightforward develop into got here upon in Mesopotamia and dates back to 3500 BC.
There are basically three types of friction : *Static friction *Kinetic friction *Rolling friction Friction is a force which opposes the motion of the object. Among all the above kinds of frictions - Rolling friction is said to be the lowest. For example, take a case where you need to move a heavy gas cylinder. You can either make it move to pushing or pulling it, here kinetic friction plays a major role, thus it would be difficult to make it move a large distance. But in the other case, keep the cylinder horizontal and start rolling it. Here he cylinder moves much faster and your total work done would be less ( less force needed ). The particles in contact to the ground during a rolling motion are very less as compared to pure linear motion. This is main reason why the invention of wheels is considered as a great invention. You can travel more by applying very less force.
One way to answer a question like this is to consider what the world would be like without wheels. No cars, railroads, bicycles, roller skates, tractors, gears, pulleys just to name a few. I'm sure you can think of many other inventions that rely on wheels. Just think of all of the inventions that wouldn't exist without the wheel. So how would the world be different without these things? That is the answer to why the wheel is a great invention. For example, imagine the implications of farming without tractors. Could the current population survive based on farming using manual methods? You get the idea :) Hope this helps, -Guru
