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*19Named for Johann Christian Doppler, an Austrian physicist, who first noticed the effect in 1842. Briefly, what happens is that as a moving object approaches a stationary one its sound waves become bunched up as they cram up against whatever device is receiving them (your ears, say), just as you would expect of anything that is being pushed from behind toward an immobile object. This bunching is perceived by the listener as a kind of pinched and elevated sound (the yee). As the sound source passes, the sound waves spread out and lengthen, causing the pitch to drop abruptly (the yummm).
A Short History of Nearly Everything
Bill Bryson
A little success always went to Bowerman’s head, in the best way. Around this time he was also testing sports elixirs, magic potions and powders to give his runners more energy and stamina. When I was on his team he’d talked about the importance of replacing an athlete’s salt and electrolytes. He’d forced me and others to choke down a potion he’d invented, a vile goo of mushed bananas, lemonade, tea, honey, and several unnamed ingredients. Now, while tinkering with shoes, he was also monkeying with his sports drink recipe, making it taste worse and work better. It wasn’t until years later that I realized Bowerman was trying to invent Gatorade.
If you are in a difficult situation, a low mood, if you are afraid of other people and of yourself, if you are tormented, then tell yourself: “I will love everyone whom I meet in this life.” Try to follow this rule; and you will see that everything will find its way, and everything will seem simple, and you will no longer have doubts or fears.
A Calendar of Wisdom
Leo Tolstoy and Peter Sekirin
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