The Sumerians are thought to have formed the first human civilization in world history. They lived in southern Mesopotamia, between the Tigris and Euphrates Rivers in the Middle East. Cradle of Civilization. Many historians think that cities and towns were first formed in Sumer around 5000 BC.
At noon, on March 21 and September 23rd are the vernal and autumnal equinoxes. The sun is directly overhead at the equator at these times. On June 22nd is the summer solstice, in the Northern Hemisphere. The sun is at the 23.5 degrees Northern latitude.
The hottest time of the day and the time of maximum burning are two different things. The most intense solar radiation comes at Local Apparent Noon. This is not necessarily the same time as noon on the clock unless you live on the meridian of your time zone.The highest levels of solar radiation are an hour or so either side of this and this is the time you are most likely to get burnt.. The hottest time of the day is later in the afternoon.The sun heats the Earth which, in turn, heats the lower troposphere. The incoming solar radiation starts each day at zero at sunrise, reaches a maximum at noon and falls back to zero at sunset.he highest levels of solar radiation are an hour or so either side of this and this is the time you are most likely to get burnt.. The hottest time of the day is later in the afternoon. The sun heats the Earth which, in turn, heats the lower troposphere.