Archimedes would have been one hell of an angler
Reel Gear Physics
Re: Reel Gear Physics
Two bicycles identical in every respect EXCEPT bike 1 has 6" long pedal crank arms and bike 2 has 12'" long pedal crank arms. Same rider (load factor) ... It's obvious the bike with the longer crank arms will be easier to get moving from a dead stop with less effort from the rider due to the added length of the crank arms.
Archimedes would have been one hell of an angler
Archimedes would have been one hell of an angler
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mark poulson
- TT Pro Angler
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- Location: NorCal
Re: Reel Gear Physics
I found this definition of leverage online on Wikipedia.
A reel handle would fall under Class 2: Resistance. The load, in a reel's case the place where the main gear teeth and pinion teeth engage, is between the end of the lever and the fulcrum, which is the handle shaft.
Classes of levers[edit]
Three classes of levers
Levers are classified by the relative positions of the fulcrum, effort and resistance (or load). It is common to call the input force the effort and the output force the load or the resistance. This allows the identification of three classes of levers by the relative locations of the fulcrum, the resistance and the effort:[2]
Class 1: Fulcrum in the middle: the effort is applied on one side of the fulcrum and the resistance (or load) on the other side, for example, a seesaw, a crowbar or a pair of scissors. Mechanical advantage may be greater than, less than, or equal to 1.
Class 2: Resistance (or load) in the middle: the effort is applied on one side of the resistance and the fulcrum is located on the other side, for example, a wheelbarrow, a nutcracker, a bottle opener or the brake pedal of a car. Load arm is smaller than the effort arm. Mechanical advantage is always greater than 1.
Class 3: Effort in the middle: the resistance (or load) is on one side of the effort and the fulcrum is located on the other side, for example, a pair of tweezers or the human mandible. The effort arm is smaller than the load arm. Mechanical advantage is always less than 1. It is also called speed multiplier lever.
These cases are described by the mnemonic fre 123 where the fulcrum is in the middle for the 1st class lever, the resistance is in the middle for the 2nd class lever, and the e ffort is in the middle for the 3rd class lever.
A reel handle would fall under Class 2: Resistance. The load, in a reel's case the place where the main gear teeth and pinion teeth engage, is between the end of the lever and the fulcrum, which is the handle shaft.
Classes of levers[edit]
Three classes of levers
Levers are classified by the relative positions of the fulcrum, effort and resistance (or load). It is common to call the input force the effort and the output force the load or the resistance. This allows the identification of three classes of levers by the relative locations of the fulcrum, the resistance and the effort:[2]
Class 1: Fulcrum in the middle: the effort is applied on one side of the fulcrum and the resistance (or load) on the other side, for example, a seesaw, a crowbar or a pair of scissors. Mechanical advantage may be greater than, less than, or equal to 1.
Class 2: Resistance (or load) in the middle: the effort is applied on one side of the resistance and the fulcrum is located on the other side, for example, a wheelbarrow, a nutcracker, a bottle opener or the brake pedal of a car. Load arm is smaller than the effort arm. Mechanical advantage is always greater than 1.
Class 3: Effort in the middle: the resistance (or load) is on one side of the effort and the fulcrum is located on the other side, for example, a pair of tweezers or the human mandible. The effort arm is smaller than the load arm. Mechanical advantage is always less than 1. It is also called speed multiplier lever.
These cases are described by the mnemonic fre 123 where the fulcrum is in the middle for the 1st class lever, the resistance is in the middle for the 2nd class lever, and the e ffort is in the middle for the 3rd class lever.