billionth

Measurement time in billionths of a billionth of a second

Measurement time in billionths of a billionth of a second

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The Griffith University interferometer. Credit: Griffith University How fast do electrons inside a molecule move? Well, it’s so fast that it only takes them a few attoseconds (a billionth of a billionth of a second) to jump from one atom to another. Blink and you’ve missed it – millions of billions of times. Measuring such …

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As the 8 billionth person is born, here's how Africa will shape the future of the world's population

As the 8 billionth person is born, here’s how Africa will shape the future of the world’s population

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by Esther William Dungumaro and James Emina, The Conversation Credit: Pixabay/CC0 Public domain In mid-November 2022, the eight billionth person will be born, according to the United Nations. In its analysis of this milestone, the UN makes two key observations. The first is that the world’s population has grown at its slowest rate since 1950. …

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