When a horse is galloping, its hooves hit the ground at about 15kph, and this causes damaging vibrations in the animal's legs.

ECONOMIST: Veterinary technology

At Miraval, Life in Balance, guests are invited to try any number of "challenge" activities--balancing a feather on the palm of the hand, climbing (while tethered) the 25-foot Quantum Leap pole and then jumping off, learning to approach a horse and pick up its hooves.

FORBES: Magazine Article

In each stride horses lift all four hooves off the ground at once, something that George Stubbs, the most famous horse painter of the last 300 years, had guessed at but which, until Muybridge, had never been proved.

ECONOMIST: The many influences of an inventive early photographer