This illustration shows how light enters a reflector telescope. Optical telescopes allow us to see further; they are able to collect and focus more light from distant objects than our eyes can alone. This is achieved by refracting or reflecting the light using lenses or mirrors.
Labor burden is the actual cost of a company to have an employee, aside from the salary the employee earns. Labor burden costs include benefits that a company must, or chooses to, pay for employees included on their payroll.
Unskilled Labor. What is 'Unskilled Labor'. Unskilled labor is a segment of the workforce associated with a limited skill set or minimal economic value for the work performed. Unskilled labor is generally characterized by a lower educational attainment, such as a high school diploma, GED or lack thereof, and typically results in smaller wages.