compound formation is like a marriage

An example of an historical analogy:

"…Helmont distinguishes between 'mere apposition' of particles and true 'wedlock'. The first of these is a 'bare commingling', which Helmont contrasts to a genuine 'marriage' that occurs when substances are deeply connected… Where modern chemistry speaks of compounds, in which recoverable elements are held together by chemical bonds, Helmont speaks of 'indissoluble marriages'."

Marina Paola Banchetti-Robino

Marina Paola Banchetti-Robino (2020) The Chemical Philosophy of Robert Boyle. Mechanicism, Chymical Atoms, and Emergence

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reflexes can operate in peaceful republics

An example of an analogy used by a scientist:

"If an external organ harbours a complete reflex arc, one can properly call this a 'reflex person'. Sea urchins have a great number of such reflex persons which perform their reflex tasks without central direction, each on its own….Although many reflex persons act together, they work completely independently of one another….One can therefore speak of a 'reflex republic' in which, in spite of the complete autonomy of all reflex persons, a total civil peace reigns, for the tender suction feet of the sea urchin are never fallen upon by the biting, rasping pincers, which would otherwise grab any other approaching object."

Jakob von Uexküll

Uexküll, J. v. (1934/2010). A Foray into the Worlds of Animals

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investigating objects in space is like measuring the timbers of a ship

An analogy used by a scientist:

"To know the height of the mainmast does not suffice for calculating the age of the captain. When you have measured every bit of wood in the ship you will have many equations, but you will know his age no better. All your measurements bearing only on your bits of wood can reveal to you nothing except concerning these bits of wood. Just so your experiments, however numerous they may be, bearing only on the relations of bodies to one another, will reveal to us nothing about the mutual relations of the various parts of space."

Henri Poincaré

Poincaré, H. (2015). Science and Hypothesis

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impetus is given to the projectile just as heat is given to water by a fire

An example of an analogy from the history of science:

"Ibn Sina was the first Muslim scientist to revise the impetus theory of John Philoponus, an attempt to explain why a projectile continues to move after it is fired. He described this impetus as a 'borrowed power' given to the projectile by the source of motion, 'just as heat is given to water by a fire'."

John Freely

Freely, J. (2012). Before Galileo. The birth of modern science in Medieval Europe.

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T cells sniff other cells

An example of metaphor in public science discourse:

"[A T cell] goes around sniffing other cells, basically touching them and trying to find out whether they have been altered in some way, particularly if they are carrying inside them a virus or any other kind of pathogen, and if it finds this pathogen or a virus in your body, it is going to go and kill that virus or pathogen"

Dr Siddhartha Mukherjee, Columbia University

Read "Cells are buzzing cities that are balloons with harpoons"

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Many examples of science metaphors are listed in 'Creative comparisons: Making science familiar through language. An illustrative catalogue of figurative comparisons and analogies for science concepts'. Free Download.

chance need not be an evil ghost

An example of a metaphor used to explain science:

"The way to master chance is to face it and to discover its laws rather than to deny its objective existence. Chance is an evil ghost only if regarded as lawless chaos or as an ultimate, not further analysable, mode of being."

Mario Bunge

Bunge, M. (2017/1998). Philosophy of Science. Volume 1: From problem to theory. Routledge.

coloured rays blend like powder paint

An example of an analogy used to explain science

"…Transmutations made by the convening of divers[e] colours are not real; for when the difform Rays are again severed [separated], they will exhibit the very same colours, which they did before they entered the composition; as you see, Blew and Yellow powders, when finely mixed, appear to the naked eye Green, and yet the colours of the Component corpuscles are not thereby really transmuted, but only blended. For, when viewed with a good Microscope, they still appear Blew and Yellow interspersedly."

Isaac Newton

Philosophical Transactions February 19th 167172

A Letter of Mr. Isaac NewtonProfessor of the Mathematicks in the University of Cambridge; containing his New Theory about Light and Colors: sent by the Author to the Publisher from Cambridge, Febr. 6. 167172in order to be communicated to the R. Society.

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the invention of differential calculus was like the steam engine

An example of an analogy used to explain the history of science:

"…in the invention of the method of fluxions, or, as it is now more generally called, the differential calculus, [Isaac Newton's genius] has supplied a means of discovery, bearing the same proportion to the methods previously in use, that the steam-engine does to the mechanical powers employed before its invention."

John Frederick William Herschel

John F. W. Herschel (1830) Preliminary Discourse on the Study of Natural Philosophy

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black box resembles a company's annual report

An example of an analogy used to explain science:

"The black box resembles the annual report that the company manager submits to the shareholders: both the theory and the report speak about incomes and outcomes, net gains and net losses, and even of overall-trends; but they do not explain the processes at work (in the company or in the box)."

Mario Bunge

Bunge, M. (2017/1998). Philosophy of Science. Volume 1: From problem to theory. Routledge. (1967)

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