The authors also found that if a soft surface is smooth, the pulses are irregular and produce no sharp sounds, whereas ridged surfaces – like the grip patterns on sports shoes – produce consistent ...

As the shoe works hard to keep its grip, tiny sections of the sole change shape as they momentarily lose then regain contact ...

This winter, The Sun’s Tom Spears looks under snow and behind icicles to find out what makes our coldest season tick. It’s a series we call The Science of Winter, and today’s episode looks at the ...