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1 day ago · Six similar coins can be arranged around a central coin of the same radius so that each coin makes contact with the central one (and touches both its neighbors without a gap), but seven cannot be so arranged. This makes 6 the answer to the two-dimensional kissing number problem.
1 day ago · Sue Singer, British mathematics educator, president of Girls' Schools Association and Mathematical Association; Ajit Iqbal Singh (born 1943), Indian researcher in functional analysis and harmonic analysis; Sylvia Skan (1897–1972), British applied mathematician known for the Falkner–Skan boundary layer in fluid mechanics
1 day ago · 6 February – Shreela Flather, Baroness Flather, 89, British-Indian politician, Life peer (since 1990). 23 February – Ronnie Campbell, 80, British politician, MP (1987–2019). 25 February – Patrick Cormack, Baron Cormack, 84, British politician, MP (1970–2010) and member of the House of Lords (since 2010).
