How much does a social worker make? According to the May 2012 records from the Bureau of Labor Statistics, the mean annual healthcare social worker salary is $51,460, or $24.74 per hour. The lowest ten percent earn $31,410, while the top ten percent make an average of $74,030 annually.
The Leibniz Step Reckoner. Gottfried Leibnizâs 1673 âStep Reckonerâ introduced a design innovation that enabled a single gear to represent any digit from 0 to 9 in just one revolution. This stepped-drum approach dominated calculator design for the next two centuries. Gottfried Leibniz.
John Kay, inventor of the âFlying Shuttleâ, held in his hands, the first flutterings of what would become, the Industrial Revolution. John Kay was a man whose entire young life had been exposed to the woolen industry. He knew the problems and the pitfalls of mechanization but could see the great need for advancement in the industry.