The Color-Sensitive Cones. In 1965 came experimental confirmation of a long expected result - there are three types of color-sensitive cones in the retina of the human eye, corresponding roughly to red, green, and blue sensitive detectors.
Most PGA Tour caddies make between $1000 and $1500 per week, but they also make a percentage of what the player wins in the tournaments. This usually equates to 5 percent of any finish outside the top 10. Players breaking into the top 10, but not winning, will share 7 percent of their prize with their caddies.
At the professional level, a caddie is typically much more. A caddie is often a valued â¦ Former PGA Tour caddie Alfred âRabbitâ Dyer says that caddies may earn salaries of $2,000 per week, while âForbesâ magazine reports that PGA Tour caddies typically receive about $1,000 each week. The magazine said in a 2007 â¦ Prosperity Pay | How Much Does a Pro Caddie Earn?