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¦.
Comparing Real Mechanical Advantage With Speed Ratio When people calculate mechanical advantage and speed ratio they may find that they are the same. In real situations however, when they are calculated, they can be very different. This is because of friction.