Roman timekeeping. The Roman clock, or time of day, was divided into 24 hours (Latin horae), 12 hours of light and 12 hours of darkness.
When equipping a home-gym, itâs critical to consider at least one piece of cardio equipment. The top four treadmill picks from Consumer Search range from $990 to $3,500, with the average costing around $2,000.Another piece of popular cardio equipment is an elliptical trainer, which averages $1,500.he top four treadmill picks from Consumer Search range from $990 to $3,500, with the average costing around $2,000. Another piece of popular cardio equipment is an elliptical trainer, which averages $1,500.
Basics. The Bureau of Labor Statistics shows that fitness instructors averaged $17.38 per hour or $36,150 per year as of May 2011. However, this average takes into account all exercise specialists including personal trainers who worked only with individuals.asics. The Bureau of Labor Statistics shows that fitness instructors averaged $17.38 per hour or $36,150 per year as of May 2011. However, this average takes into account all exercise specialists including personal trainers who worked only with individuals.