Is division by Zero allowed?
Why can’t you divide by zero? Who forbade it? School stubbornly forbids us from dividing by 0, but as soon as you step into university, you get an indulgence. What was considered forbidden in...
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The Story of Zero
Who invented zero? For those who want a quick answer, I’ll say right away — zero was invented by Indian mathematicians. That’s what the official history of mathematics states. But for those who are...
Emperor & Imperia
The word “empire” is used by everyone, everywhere. Usually, it means “something large,” for example: business empire or criminal empire. It’s interesting what the word empire actually meant in ancient times and what the...
What is the speed of sound
First, let’s find out how fast is supersonic in kilometers or miles per hour? What speed is required to be considered supersonic? The problem is that there is no simple and straightforward answer to...
