A fisherman in a boat above the diver has to contend with the sun’s position in the sky. The higher the sun is, the more difficult it is to see the fish below. The ideal time for fishing is early morning or late evening when the sun is low in the sky.
On a clear day, the sun is about halfway up the sky when viewed from a boat at sea. This is because the sun is so far away that its light has to travel through more atmosphere to reach our eyes than when we are on land. The higher the sun is in the sky, the less atmosphere its light has to travel through, and thus the brighter it appears.
For a fisherman in a boat above a diver, however, things look different. The fisherman is closer to the sun, so its light has to travel through less atmosphere to reach his eyes. As a result, the sun appears much brighter in the sky than it does for someone on land.
How High is the Sun above the Horizon to a Fisherman in a Boat
A fisherman in a boat can see the sun high above the horizon. The sun is so bright that it hurts their eyes to look at it. They have to squint and put on sunglasses to protect their eyes.
The sun is very hot, too, so they have to put on sunscreen and drink lots of water to stay hydrated.
Chapter 18, Problem 9
The sun is high in the sky when a fisherman in a boat looks down at a diver, who is swimming below. The sun’s position affects how much light the diver can see and how warm the water feels.