A compound bow is designed to use a levering system that shall make the upper and lower portions of the bow, called its limbs, to bend and thus give the power needed to shoot forth the arrow.
The difference between these compound bows and the traditional wooden longbows, among other things, is the lack of flexibility in their limbs. Wood was found not to be as efficient in the transmission of power and flex as more modern materials.
The bow may be stiff, but it has levers and pulleys that afford it its flex for the power generation. This enables its functioning. As the string gets pulled back, there is a mechanical advantage whereby power is generated, and keeps doing so till enough of it is realized, thereby getting released and pushing out the arrow.
Weather changes do not affect the functioning of these modern bows. The earlier wooden bows were not that efficient, as they functioned poorly in damp weather, seeing as wood tends to absorb moisture. They could thus not transit the power well. In heat and dry conditions, the wood would most likely crack. Watch this video at https://www.youtube.com/watch?v=4kh6AgTxDeg and know more about archery.
Compound bows were not readily accepted back then. People had to take a while to accept its presence and qualities. Over time, its efficiency and effectiveness has seen it gain more users in the hunting world. Its current speed and accuracy has made them see it in a different light.
There are always differing opinions among these hunters as to which manufacturers make the best compound bows at The Best Compound Bows, and which ones are the best materials while doing so. Common materials used include aluminum, magnesium, or an aluminum alloy that is used in the aircraft industry.
A bow will get the majority of its strength from its limbs. The pulleys and levers play a small role in the making of this power. The cams and wheels need to be constructed well, to allow for their smooth movement as they bring along the string. It is still commonly referred to as string, but the materials used to make it have advanced in composition. We now have some made from highly efficient high-modulus polyethylene cables. They can take up so much tensile strength. They will not stretch too, which would have made them less efficient. The earlier examples were made of a high tensile coated steel cable, go here!
The cams present are for controlling the speed of the arrow. Cams are usually categorized as soft and hard types. You will see many learners opting for softer cams.
If you want to take up archery, you will have to buy a bow. You cannot miss one when you go looking online.