22 The worth of the United Kingdom primary customary of the yard was decided in terms of the meter by the National Physical Laboratory in 1964 to be zero.9143969 m, 23 implying a pre-1959 UK foot of 0.3047990 m. So, this was…
22 The worth of the United Kingdom primary customary of the yard was decided in terms of the meter by the National Physical Laboratory in 1964 to be zero.9143969 m, 23 implying a pre-1959 UK foot of 0.3047990 m. So, this was…