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The Horse’s Amazing Leg

A HORSE (Equus caballus) can gallop at a speed of up to 30 miles per hour (50 km/​h). Although this involves a lot of physical work, relatively little energy is spent. How is this possible? The secret is in the horse’s legs. Consider what occurs when a horse gallops. Elastic muscle-tendon units absorb energy when the leg …

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If All Stories have Sad Endings

If all stories have sad endings…how would you value life? Life is happy, it started with a miraculous beat…birth…life! You’ve marked the milestones… First smile, first word, first step… You’ve celebrated annual cycles as you age, anniversaries, graduations… Successes… first job, promotions… First love, marriage… Family, happiness, and laughter with them… Life is beautiful… It …