Don’t Run With The Clock, Walk With The Sun

In a cross-cultural relationship between Navajo and a businessman in India, this transaction contains an independent economic philosophy. The value of "sharing all products" in the Navajo community contradicts trader's capitalist economic philosophy. These differences do not affect the need for survival. Instead, it provides a real opportunity for Navajo and Indian merchants to share the conditions and familiarity of the area they live in. Navajos does not rely on the economic aspect of the trading system.

I can not live without a watch. This is a very important invention. For many years equipment has been used to keep track of time. However, the first watch was invented in the 2nd century BC. This is the sun's clock. The movement of the sun through the sky makes it possible to simply estimate the time from the length and position of the shadow projected from the vertical bar. If the place where the sun's shadow falls is marked, you can record the time in a consistent way. The result is the sun's clock. Then the water clock was invented. The water clock called Greek "leak pot" tries to measure the time according to the amount of water dripping from the tank. If the flow of water is fully controlled, this will be a reliable form of watch. But actually I can not. "Leak Pot" is in Egypt in 1400 BC through Greece and Rome, Arab civilization and China, and even in Europe has a history of glory in the 16th century. But it is more like a toy than watch

When returning to the past, people rely on sunlight and water to measure time. Time reading is incorrect until a mechanical and electronic watch is found. Mechanical watches consist of a series of gears, springs, and weights responsible for the movement of the watch, but the electronic watch uses electricity or batteries as the power source. Later on, modern technology continues to study atomic clocks and digital clocks and how to improve them.

I have created a video that runs at 1 revolution per second. At the end of the time interval, the roof line is on the 29th floor. From this point on, if the watch moves in the reverse direction for 4 seconds, you can see that the roof line does not drop at all even if the watch is turned on. Changing the pixel of John Gross should be the result of horizontal movement of the roof line. The interpretation of NIST in WTC 7 crash in section 6 is highly contradictory, and it may indeed wonder what it is. On the surface it seems that this is considerably slower than when the building descending speed drops. However, NIST does not really comment on building acceleration. Compare the two time intervals, the time it takes for the roof line to reach the 29th floor after the color of the first pixel changes and the time the object that is completely free-fall falls through the same vertical distance.