Measurement of distances to inaccessible objects. Travel Tips

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Measurement of distances to inaccessible objects. Travel Tips

Tourist tips

How to measure distance to inaccessible objects?

On the opposite bank of the river, a person walks parallel to the bank from left to right. Stretching your hand in the direction of the pedestrian, look with one right eye at the end of the finger, waiting for the person to block it. At the same moment, close the right eye and open the left - the person seems to bounce back. Now count how many steps the pedestrian will take before he again catches up with your finger.

The distance from you to a person on the other side of the river is determined from the proportion D / P \uXNUMXd L / G, from where D \uXNUMXd P x L / G.

Example. The distance between the pupils of the eyes D = 6 cm, from the end of the outstretched arm to the eye L = 60 cm. The pedestrian walked the distance P, equal to 18 steps; the average step is 75 cm. Substituting this value into the formula, we get D \u18d 60 x 6 / 180 \u180d 0,75 steps, or 135xXNUMX \uXNUMXd XNUMX m.

Having measured the distances between the pupils and from the eyes to the end of the outstretched arm, one must obtain and remember their ratio, which for most people reaches 10.

Difficulty can arise only in determining the distance traveled, since it is not always possible to use the steps of a person. In this case, you need to remember the length of the most common items. Thus, it is possible to estimate the distance traveled by a person by comparing it with the length of the house, the carriage, the width of the window and other objects to which the distance must be determined. It remains only to multiply their length by the resulting ratio - L / G.

Author: A.E. Menchukov

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