The new paper represents the last of the four mesons that had never been seen flipping from matter to antimatter and back in a single measurement.

BBC: LHC's D-meson study wraps up antimatter 'flip' story

Findings like this will not hold back Britain's measurement-mad government.

ECONOMIST: But Britain's performance is hardly bespoke

Mr Barnard said their first measurement had been so close, OS had asked them to go back and take a second reading.

BBC: Ordnance Survey confirms mountain status for Thack Moor