Voyage of a Summer Sun

It was not very attractive to me when I heard that our work is to read this book for the first time. . . In any case, I think that I can write how much about the canoe on the Columbia River. It seems to be only a big, long, boring story about canoes and "men". I like good adventures, the cover of the book shows some promises, but of course I do not appreciate canoe like Robin Cody ever. I must admit that the first part of this book is too much for me, but when Robin had to sail with rough water and wind conditions, dam and lock, it was some best It reached the point.

Summer: (An image of the summer earth tilt) When the northern hemisphere tilts toward the sun, the sun's ray hits the earth at a steep angle than the same latitude in the southern hemisphere. As a result, the radiation is distributed in a region where the N hemisphere is smaller than the S hemisphere (as indicated by the red line). This means that more radiation is absorbed in each unified area. Therefore, summer is in the northern hemisphere and winter is in the southern hemisphere. This situation became the biggest on June 21.

The earth is leaning around its axis. The northern hemisphere will experience the summer when the sun is leaning toward the sun and will experience winter when it is leaning. But when the earth is closest to the sun, the northern hemisphere will not lean towards the sun. In fact, summer is far from the sun. Even if the earth is furthest from the sun in the summer, the northern hemisphere is inclined towards the sun, so you will feel light and heat. Since the earth is always inclined over the entire orbit, the solar energy hits the earth at various angles. When the northern hemisphere tilts toward the sun, the solar energy directly hits it, making summer. In the winter, when the northern hemisphere leaves the sun, the solar energy decreases directly, and it will be winter.

The season is not due to summer being closer to the earth than to winter, but due to the axial tilt of the earth at 23.4 degrees. Each hemisphere tilts towards the sun in each summer (the northern hemisphere in July and the southern hemisphere in January), as opposed to the winter, the days become longer and the direct sunlight increases. Lemmings will not make extensive suicide diving on the cliffs during immigration. The Disney movie "White Wilderness" encourages this misunderstanding (by again using multiple sets of different lemings in this case as well) by photographing a number of immigrant scenes with a large snow-covered turntable in the studio It is. Photographers later moved Reming from the cliffs. Misunderstanding itself is older, at least dates back to the end of the 19th century