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His lowest false shot percentage in any of his eight Test centuries in England was 9% - a difference of far more than a strip of sandpaper or two.

“Hard Truths” is sublime and soft in the way that a rough surface is smoothed to the touch by sandpaper.

Those pulses passed through transceivers, encountered the sandpapers, then rebounded back through the system for analysis by the team's learning model.

Start with coarse sandpaper — maybe 80 grit — and work up to progressively finer grades, ending with 400 grit.

The voice of Michael McDonald has been compared to velvet, silk and sandpaper, melted chocolate and last year, by a besotted 11-year-old girl, an angel.