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Satellite-controlled mushroom picking

20.10.2010

An interesting experiment was conducted by employees of the National Autonomous University of Mexico. For two seasons, they watched mushroom pickers from a Mexican village, comparing the successes in the "silent hunt" of men and women.

The experimenter who accompanied each group of peasants had a satellite navigation device with him, which made it possible to map the wanderings of mushroom pickers. And each mushroom picker was equipped with a pulse rate recorder - from this data, energy consumption can be calculated. The collected mushrooms were weighed.

On average, judging by the weight of the collected baskets, both men and women were equally successful in picking mushrooms. But women stopped more often to cut even a single mushroom, while men preferred to stop only for the sake of a whole mushroom family.

In addition, men went further into the forest, climbed higher into the mountains and expended 70% more energy than women.

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A treadmill in a water-filled pool can cure some back injuries. When the spine is broken, doctors usually tell the patient that they will never walk again. Physical therapists don't always agree.

For example, Sandra Stephens, doing her PhD research at the University of Middle Tennessee, decided to put such patients on their own feet. This idea was inspired by the work of this university with children who had cerebral palsy.

The essence of her proposal is that the patient, without any help, walks along a treadmill set in a pool filled with water. Water, being much denser than air, supports the patient and significantly slows down his movements. Therefore, he has time to concentrate and independently restore the lost balance.

Sandra Stevenė's results were very good: she brought back to their feet several people with spinal fractures received during accidents. After a course of treatment lasting several months, some of them were able to walk along the path for tens of minutes at the speed of an ordinary pedestrian. And this despite the fact that the doctors predicted them complete immobility.

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