Four years later, general relativity made Einstein himself a celebrity. If gravity curves space, he had realized early on, a light beam passing near a massive object (say, the sun) would be deflected from its course. That deflection would shift the apparent position of the source of the light (say, a distant star).
Median sunscreen price was US$1.70 per 10 g. Assuming that standard sunscreen application recommendations (2 mg/cm 2) were followed, the median cost to the family varied from $178.20 per week (if children were 2-year-olds) to $238.40 per week (if children were 10-year-olds).ltraviolet (UV) radiation is a known carcinogen and sun-protection strategies, including sunscreen use, have long been advocated. However, many individuals fail to use sunscreen adequately. Sunscreen cost may contribute to poor compliance.
So, for example, if you use 10 kilowatt-hours a day, and the cost of power is about 10 cents per kilowatt-hour, then you electrical costs would be about $1 per day (ten times 10 cents), or $30 per month. Also, we need to know how long the sun shines each day on average.Let this be denoted by Tsun,r, by multiplying numerator and denominator by 1000, Costpanels = $600/75 watts = $8000/kilo-watt. Thus, as a function of Energy use, the cost of the solar panels will be. Costpanels = Ppeak panels x Costs.p.