Failure to clock direction of travel on the M25

SIR – Will the apparent loss of understanding of the words clockwise and anticlockwise (Letters, May 3) make the M25 a no-go area for those who fail to work out the traffic situation from radio travel updates? Judith Barnes

St Ives, Huntingdonshire

SIR – Surely the definition of clockwise in the northern hemisphere is the direction in which the sun moves as it measures out the day? Bill Carson

Thurton, Norfolk SIR – You report (April 25) that many 16-year-olds cannot master the principles of the analogue clock. Are these the same 16-year-olds Jeremy Corbyn wishes to entrust with the vote? Colin Sharp

Warwick

SIR – Lucy Archer-burton’s “lefty loosy, righty tighty” rule for adjusting a nut could also be of use to explain fiscal policies to the digital generation. John H Stephen

London NW8