1. How many Hertz can a human ear hear?
Experiments have shown that a healthy young person hears all sound frequencies from approximately 20 to 20,000 hertz.
2. How much time do workers spend making hot drinks each day?
24 minutes are spent making, serving, and drinking hot drinks at work, resulting in 190 days in lost productivity over a working lifetime.
3. Which of the following countries works the most?
According to a study carried out by the OECD in 2017, America is the country that works the most, with 1789 annual hours worked per employee on average. Following is Japan, with 1742 annual worked hours. Last is the United Kingdom, where a worker spends 1676 hours annually on average working.
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