The method was first published in Nature on 20 December 1906 in the letters to the editor section by English mathematical scientist Francis Galton.
Titled ‘Cutting a round cake on scientific principles’, Galton’s letter explained how the ‘ordinary method of cutting out a wedge is very faulty’.
He went on to state the cake should be cut in parallel lines, starting in the centre, with the rectangular segments of the cake then taken out and eaten.
This would allow the cake to then be closed, provided it is one with icing, keep the sponge inside sealed and retaining its freshness.
'Christmas suggests cakes, and the wish on my part [is] to describe a method of cutting them that I have recently devised to my own amusement and satisfaction.
'The problem to be solved was, "given a round tea-cake of some 5 inches across, and two persons of moderate appetite to eat it, in what way should it be cut so as to leave a minimum of exposed surface to become dry?"
'The ordinary method of cutting out a wedge is very faulty in thi s respect. The results to be aimed at are so to cut the cake that the remaining portions shall fit together.
'Consequently the chords (or the arcs) of the circumferences of these portions must be equal.
'The direction of the first two vertical planes of section is unimportant; they may be parallel, as in the first figure, or they may enclose a wedge.
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