"porous"
the material is in an enclosed package so you would never know what the material is through basic means of deduction such as all five senses.
One of the customers of a material engineer is an electrical engineer. To understand the customer and what he wants, a good material engineer needs to learn the basics of how to communicate with the customer. Engineers communicate through drawings so that means a material engineer needs to learn how to read/create electrical drawings.
The material comprises a fabric (typically a polyfluorinated polymer) that is water repellent, but which has microscopic holes in it. Microscopic drops of water from sweat, and water vapour itself, are small enough to get through the holes. Larger drops of water, such as those in rain, are too large to get through the holes, and so sit on the surface, experiencing the water-repellent properties of the material. It's by no means the same thing, but it's rather like the fact that sugar can pass through a sieve, whereas sugar lumps can't.
it means how tough the material is. duh. \ NOPE! JUST CHUCK TESTA WITH ANOTHER REALISTIC ANSWER! 8======D
it means how tough the material is. duh. \ NOPE! JUST CHUCK TESTA WITH ANOTHER REALISTIC ANSWER! 8======D
When a material has spaces that allow water to seep through it, it means that the material is porous. This porosity allows water to pass through the material rather than being blocked or retained on the surface. Materials such as sponges, fabrics, and some types of soil are examples of porous materials.
Porosity refers to the empty spaces or voids in a material, while permeability is the ability of a material to allow fluids to flow through it. Higher porosity means more empty spaces, but that doesn't always translate to good permeability; permeability also depends on the connectivity of these pores.
Perfusion - passing of a fluid through space
When water soaks into another material, it means that the water is able to penetrate or be absorbed by that material. This can happen with porous materials such as cloth, paper, or soil, where water is able to seep into the spaces within the material.
percolation
When a material is opaque, it means that it does not allow light to pass through it. This makes the material not transparent or translucent, so you cannot see through it. Opaque materials block the transmission of light.
Permeability refers to the ability of a material to allow fluids to flow through it, while porosity is a measure of the empty spaces (pores) within a material. In other words, permeability describes how easily fluids can move through a substance, while porosity describes the amount of open space within that substance.
When all light passes through a material, it is called transparent. This means that the material allows light to pass through with little or no distortion, making objects on the other side visible.
The term for a material that transmits light is "transparent." This means that the material allows light to pass through it without being scattered.
Photons can pass through materials because they do not have an electric charge and are not affected by the electromagnetic forces within the material. Instead, they interact with the atoms or molecules in the material through processes like absorption, reflection, or scattering. The likelihood of a photon passing through a material depends on its energy, the material's composition, and its thickness.
A material that heat travels through easily is copper, due to its high thermal conductivity. This means that heat can move quickly through copper, making it a good material for applications where heat transfer is important.
An impervious rock is one that does not allow water to flow through it. It has no air spaces and has no way of storing water at all.