i think guys are the only ones that use this when they want to play with themselves and get better pleasure.
A lubricant and sound insulation.
graphite is used as lubricant in machinery.also it is used in making leads of pencils.hence graphite is useful.
it protect the ferrous and nonferrous surfaces against rusting and oxidation. also this is useful as a lubricant
Friction is useful when you are trying to stop a car, but not useful in the pistons of a car's engine (It makes them less efficient).
It allows the lungs to inflate and deflate without the "walls" sticking to each other, acting as a lubricant.
Graphite is a naturally occurring mineral that has many useful properties. It is a dry lubricant meaning it does not require any water or oil to lubricate surfaces. Graphite is useful as a dry lubricant because of its following properties: It is non-reactive and chemically inert meaning it does not interact with other compounds and will not corrode or react with other surfaces. It has a low coefficient of friction meaning that surfaces coated in graphite will slide against each other with minimal resistance. It is electrically conductive meaning it can be used to dissipate static electricity. It is thermally conductive meaning it can help dissipate heat from surfaces it coats.These properties make graphite a useful dry lubricant in many applications such as in the manufacture of locks automotive parts and even as a coating for medical instruments.
Thermostats require no lubricant.
Yes! Wax is a VERY good lubricant!
Water based lubricant
synovial fluid
the lubricant who born in any weather .... :D
Starch is called a lubricant because it has a slippery texture when mixed with water, which helps reduce friction between surfaces. This can be useful in various industrial processes to prevent sticking or ensure smooth movement. Additionally, starch's lubricating properties can also be seen in culinary applications to thicken sauces and provide a smoother texture.