Because the natural world is full of hydrophobic and hydrophilic surfaces, the basics of the phenomenon have been known by scientists for at least two centuries. For example, the lotus leaf is a well-known example of a hydrophobic material, protecting the water-dwelling plant from becoming waterlogged.
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system.Value of mechanical advantage is load(L)/Effort(E). â¦.
A simple machine is a device that acts to increase or decrease the amount of force output by the machine, F o, compared to the force input to the machine, F i. Energy is still conserved. Although a machine like a lever can increase the force, it does not create any new energy, because energy is a conserved quantity.The amount of work input into the machine must equal the amount of work output by the machine (minus some unavoidable energy loss due to friction). W o = W i (ignoring friction losses).he mechanical advantage of a machine is the factor by which the force is increased. A machine that doubles the force has a mechanical advantage of 2. The Ideal Mechanical Advantage (IMA) is the theoretical result achieved when there is no friction.