(sorry double post lag)

This post was edited by IHateDuriel on Oct 23 2015 05:49pm

old hard drives and you get powerfull magnets

Have absolutely no idea what you're talking about, also never seen anyone here even talk about fishing.

Maybe their should be a section for Outdoor activities like fishing and camping, hiking, biking etc, you can ask for a it in the Site Suggestion thread, also put a poll in it, people like answering polls.

This post was edited by card_sultan on Oct 23 2015 07:03pm

https://en.wikipedia.org/wiki/Neodymium_magnet

Existing magnet applications[edit]

Ring magnets

Hard disk drive
Neodymium magnets have replaced alnico and ferrite magnets in many of the myriad applications in modern technology where strong permanent magnets are required, because their greater strength allows the use of smaller, lighter magnets for a given application. Some examples are:
Head actuators for computer hard disks
Erase heads for cheap cassette recorders
Magnetic resonance imaging (MRI)
Mechanical e-cigarette firing switches
Locks for doors
Loudspeakers and headphones
Magnetic bearings and couplings
Benchtop NMR spectrometers
Electric motors:
Cordless tools
Servomotors
Lifting and compressor motors
Synchronous motors
Spindle and stepper motors
Electrical power steering
Drive motors for hybrid and electric vehicles. The electric motors of each Toyota Prius require 1 kilogram (2.2 pounds) of neodymium.[15]
Actuators
Electric generators for wind turbines (only those with permanent magnet excitation)
direct-drive wind turbines require c. 600 kg of PM material per megawatt[20]
turbines using gears require less PM material per megawatt
Neodymium content is estimated to be 31% of magnet weight.[5]