Wine glasses have a unique shape that when we see it, we instantly know what the object is for, even though the object has no different functionality than any other carrier of liquid, except being perhaps less stable. Wine glasses are a unique object in that they are designed to give off a look of beauty, with features such as the flat base, the elongated pillar that holds the actual container and the shape of the container, with its thin glass. This design is consistent across all wine glasses, and it could be seen as a case of aesthetic consistency, since the design does not really have any functional benefits.
Wine glasses are consistent in their unique design due to the way that drinking wine is seen as somewhat fashionable and classier than drinking a beer, say. The design aspects of the glass transmit this class and femininity to the viewer of the object, in the same way that a sturdy, big, thick beer mug would give off a masculine and blue collar aesthetic.
Plant-life has many consistent design aspects. Although plants are not man-made “products” per say, they are products of natural design that are obviously extremely functional in what they do. A consistent aspect of the design of plants is that almost all of them are green, or have a majority of green parts. This is due to their makeup and their ability to photosynthesise sunlight into fuel. It also helps fauna to identify them as plants.
We see a number of other consistent aspects of trees. The general shape of trees is consistent in that the leaves are what is seen on the outside, then going down we see the branches and eventually, below the ground, the roots which are designed to sap the water from the surrounding soil. I’d say that plant life uses many consistent design aspects that are very functional ones, and that are also aesthetic in the sense that we can determine what kind of tree or plant something is on the way it looks and its unique features.
Temperature and Colour
We see that the colour blue is associated with low, cold temperatures, and the colour red is associated with warm or hot temperatures. This is externally consistent across many systems, such as bath taps, temperature graphs, heater settings and so on. This is a very useful design function, because the colours are universally excepted to be associated with their alternate temperatures.
We associate these colours with these meanings because they are both found in nature. Ice, obviously a cold object, is blue. Fire, a created of heat, is often red. The consistency that these colour codes have when used is what makes them such an effective design tool.