german shaevich, today we count the pulse with the help of the second hand, but it turns out that there was a person who invented this second hand, came up with the idea, the hand that goes around the dial exactly in one minute, what was his name? john? now you will see his picture on the screen, look, doctor, he came up with the idea that the second hand goes around the dial in a minute, we didn't find the old one, but herman shaich has a famous stopwatch, the stopwatch of our childhood, the second hand will go around the dial in exactly one minute, we want to start our program with you all counting your pulse. so, on the screen now. the dial will appear with only the second hand, you can count in 15 seconds, in 30 seconds, or count for a whole minute, and then if your pulse is between 60 and 100, you pick up the green flashlight, turn it on, if it's lower or higher, you turn on the red flashlight, so please, floyd's stopwatch on the screen in a modern version, everyone put your hand here on the wrist on the thumb side , it's advisable to put a few fingers and you'll start to feel the