Stories About Chemistry
What Is to Be Done About It?
It is said that once a pensive man walked into a research institute with a well stocked folder under his arm. He spread out his papers before the scientists and declared in a tone that suffered no objection: "The Mendeleyev Table should have only seven groups of elements, neither more nor less!"
"How is that?" asked the worldly wise scientists in surprise.
"It's very simple. The number 'seven' conceals a profound meaning! There are seven colours in the rainbow, seven notes in the musical scale. . ."