In the modern era, the most notable depiction of the eye is the reverse of the Great Seal of the United States, which appears on the United States one-dollar bill.he Eye appears on the following currency: 1  United States one-dollar bill, as part of the Great Seal (see above). 2  The 50 Estonian krooni note, as part of a depiction of the pipe organ of the Kaeina kÃ¤ina. 3  Church the 500 ukrainian hryvnia.  note
Also, be sure to note the month and time of day. To calculate the sun's angle, divide the length of the stick by the length of the shadow. Next, find the inverse tangent of that value - use tan^-1 for the inverse tangent. If using a scientific calculator, be sure that it is set to degrees and not radians. Repeating the above experiment multiple times a day, over a course of time, eventually yields a table of sun angle values.
Some facts about climate. The sun's rays hit the equator at a direct angle between 23 Â° N and 23 Â° S latitude. Radiation that reaches the atmosphere here is at its most intense. In all other cases, the rays arrive at an angle to the surface and are less intense.