JDTheYoungN

JDTheYoungN

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How to determine daylight hours - tomorrows adventures

Determine remaining daylight on your hand. Use this simple trick to measure the remaining daylight without a watch. Count the finger widths between the sun and the horizon. Each finger is equivalent to 15 minutes, with each hand totaling an hour.

Как определить расстояние до объекта

Как определить расстояние до объекта