diameter

These tiny machines are around 50 times smaller than the diameter of a human hair, bringing researchers closer to the long-pursued goal of interacting directly with the microscopic world.

From Science Daily ● Aug. 18, 2026

But because the diameter of the Moon is 400 times less than the Sun's, they appear exactly the same size in our sky.

From BBC ● Aug. 12, 2026

And it has to come from a place that looks localized to the mouth, and it has to be the same diameter of the actor’s mouth.

From Los Angeles Times ● Aug. 6, 2026

These fibrils were then combined with potassium hydroxide and formed into porous beads measuring about half a centimeter to one centimeter in diameter.

From Science Daily ● Jun. 11, 2026

One highly effective campaign recently asked you whether you could poke your finger through the hole, approximately the diameter of a golf ball, cut in the front cover of the leaflet.

From "Words Like Loaded Pistols" by Sam Leith

An artist's impression of a red dwarf with a white dwarf binary companion behind, with the diameters shown to scale.

From BBC ● Jul. 14, 2026

Which is to say, Porsche invented an entirely new flat-six—different bore diameters and everything—just to clear 11 centimeters under the engine cover.

From The Wall Street Journal ● Oct. 30, 2025

Astronomers these days are really interested in sub-Neptune planets, meaning those with diameters larger than Earth but smaller than Neptune.

From Salon ● May 31, 2025

They have up to 24 arms and can grow to diameters of more than three feet.

From New York Times ● Mar. 6, 2024

The diameters of the cog-wheels were, of course, in such proportion to the driving and truck wheels, that the latter should revolve as much oftener than the drivers as their smaller size might require.

From Illustrated Catalogue of Locomotives Baldwin Locomotive Works by Matthew Baird