Show them two shirts at different prices and explain why they're priced differently (material, sale or brand name).
But Johnson understands how differently material needs to be shaped for theatre's rectangle of open air and television's oblong of glass.
The radio waves react differently to different materials, for example metals look quite different from rock.
For more than half a century, scientists have been trying to understand why electrons behave differently in different materials.
These waves travel differently through different materials, and we can use this information to understand what things are comprised of beneath the surface.
Transistors made of different materials respond differently to different chemicals, so that the array produces a distinctive signal when exposed to an odour.
Different materials conduct heat differently than straight metal, so they may help the bottom not to scorch.
When put in contact with food, and depending on their composition and properties, the different materials may behave differently, transferring their constituents to the food.
In comparison to today's vehicles, they might have a different form factor, or be made from different material, be powered differently and controlled in another way.
An analysis of the flows that radiate out from Ra Patera revealed differently colored materials, all associated with liquid sulfur, at different distances from the vent: dark albedo material close to the vent at 525 K, red material in the central part of each flow at 450 K, and orange material at the farthest ends of each flow at 425 K.
Each generation consisted of 56 differently composed materials, i.e., a total amount of 280 materials.
