# How to Use attosecond in a Sentence

## attosecond

• Enlarge / An attosecond is to one second as one second is to the age of the universe.
Jennifer Ouellette, Ars Technica, 3 Oct. 2023
• To study the movement of electrons, the scientists had to use pulses of light that last an attosecond.
Katrina Miller, New York Times, 3 Oct. 2023
• In one-billionth of a second, one billion attoseconds pass.
Will Sullivan, Smithsonian Magazine, 4 Oct. 2023
• In fact, there are approximately as many attoseconds in one second as there are seconds in the age of the universe.
Aaron W. Harrison, The Conversation, 4 Oct. 2023
• One attosecond is one billionth of a billionth of a second (10-18 second) – the ratio of one attosecond to one second is the same as the ratio of one second to the age of the universe.
Niranjan Shivaram, The Conversation, 4 Oct. 2023
• Not a lot: a clock needs to be accurate to within a few attoseconds (10-18s) to be able to detect centimeter differences in height.
Chris Lee, Ars Technica, 13 Apr. 2020
• Attosecond pulses let physicists detect anything that changes over a span of dozens to hundreds of attoseconds.
Charlie Wood, Quanta Magazine, 3 Oct. 2023
• Optical atomic clocks, which use laser beams to entrap and monitor the atoms, are currently accurate down to 1 attosecond, or one billionth of a billionth of a second.
IEEE Spectrum, 15 Oct. 2023
• Researchers have created light pulses lasting just 53 attoseconds using high-speed lasers.
David Labrador, Scientific American, 25 Jan. 2012
• Optical atomic clocks, which use intersecting laser beams to entrap and monitor the atoms, are currently accurate down to 1 attosecond, or a billionth of a billionth of a second.
IEEE Spectrum, 25 June 2023
• The scientists were recognized for their experimental methods that create flashes of light that are measured in attoseconds — quintillionths of a second.
Andrew Joseph, STAT, 3 Oct. 2023

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'attosecond.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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