how we make things

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making things
periods of development
human embryology

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a plan or recipe

Usually, we need some idea of what we are trying to make before construction begins. This conceptual starting point might be in the form of a drawing, a recipe, or a computer program, for example. A drawing can show in great detail what the finished object should look like, while a recipe provides a series of instructions which may not fully describe the end result, only the process for making it. Thus, if we are making a cake from a recipe, the final outcome may be affected by a variety of environmental influences - the quality of the ingredients we use, the shape of the cake tin, and the accuracy of the oven's temperature control can all influence the end result.

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raw materials

Then we need a supply of appropriate raw materials. Usually these materials will need weighing, measuring, shaping or cutting to definitive sizes to provide the components for what we are making.

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assembly

The components are assembled and the finished object - depending on what it is - switched on, tested, tuned up and put into operation: we wouldn't usually expect full function before completion.

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