What three countries have not yet switched to the metric system of measures? Detailed answer

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What three countries have not yet switched to the metric system of measures? Detailed answer

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What three countries have not yet switched to the metric system of measures?

All states in the world have officially switched to the metric system of measures, with the exception of three: Myanmar in Asia, Liberia in Africa and the United States. Although the US Congress back in 1975 decided to gradually switch to the metric system, the Americans are not in a hurry. Now at the US National Standards Institute, two employees are working on this problem - and they are part-time.

Authors: Jimmy Wales, Larry Sanger

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Sole that never slips 02.06.2020

Scientists at the Massachusetts Institute of Technology have developed a sole that never slips. Scientists have created a product inspired by kirigami (Japanese art of paper craft using scissors).

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In the flat state, the sole remains smooth, but at the slightest bend its scales will stand on end and cling to the ground. At the same time, they weigh much less than traditional spikes. Compared with conventional materials, kirigami increases friction by 20% - 35%. This indicator was confirmed by numerous tests on ice.

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