What are the physics in fishing?

* Buoyancy: The upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In fishing, buoyancy is responsible for keeping the bait or lure suspended in the water.

* Drag: The resistance to the motion of an object through a fluid. In fishing, drag affects the casting distance and the movement of the bait or lure.

* Lift: The upward force generated by the movement of a fluid past a curved surface. In fishing, lift is responsible for the lift created by the wings of a fishing lure, which allows it to "fly" through the water.

Mechanical Engineering

* Stress and Strain: The internal forces that resist deformation of a material when it is subjected to an external load. In fishing, stress and strain are important factors in the design of fishing rods and reels, as well as the selection of fishing line.

* Strength of Materials: The ability of a material to withstand an applied load without breaking or deforming excessively. In fishing, the strength of materials is important in the selection of fishing line, leaders, and hooks.

Optics

* Refraction: The bending of light as it passes from one medium to another. In fishing, refraction is responsible for the bending of light as it passes from the air to the water, which can cause fish to appear closer to the surface than they actually are.

* Reflection: The bouncing back of light from a surface. In fishing, reflection is responsible for the glare that can make it difficult to see into the water.

* Polarization: The process of filtering out certain wavelengths of light. In fishing, polarized sunglasses can be used to reduce glare and improve visibility into the water.

Acoustics

* Sound Waves: Vibrations that travel through a medium. In fishing, sound waves are important for detecting fish, as they can be used to create echoes that can be detected by a fish finder.

* Frequency: The number of vibrations per second of a sound wave. In fishing, the frequency of a sound wave can affect its effectiveness for detecting fish.

Electronics

* Fish Finders: Devices that use sound waves to create an image of the bottom of the body of water and any fish that may be present.

* GPS: Devices that use satellite technology to determine a location. In fishing, GPS can be used to mark fishing spots and to navigate to them.

* Electric Reels: Reels that use an electric motor to retrieve the fishing line.