To the south, on Stocking Island, luminescent red starfish grow to over a foot in diameter.

FORBES: Blackbeard's Beach

Over 300 meters in diameter and weighing 25 million tons, it is set to come within 20, 000 miles of Earth in 2029.

CNN: Space's threat to civilization

It measures four meters high and is over two meters in diameter.

CNN: Sculptor creates treehouse-like tent

Up to 6 meters in diameter with tentacles over 50 meters long.

FORBES: Move up http://i.forbesimg.com t Move down

Various sizes of caisson will be built, including one 15 metres (50 feet) or so in diameter, large enough to fit over a whole blowout preventer.

ECONOMIST: Fixing oil wells

In addition, software allowed "complete control" over subtle facial elements such as blushing and even the diameter of Milo's nostrils, which he said could denote stress.

BBC: 'Virtual human' Milo comes out to play at TED in Oxford

This finding raises the question: can a small diameter lead be sufficiently robust to perform reliably over years of biologic exposure and mechanical stress in the human body?

FORBES: Robert Hauser, ICD Watchdog, Offers Viewpoint On Riata Controversy At HRS

SKA's proponents are talking of scattering its sub-telescopes over an area of 1m square kilometres, which would create an effective diameter of about 1, 000km.

ECONOMIST: Radio telescopes

The meteor was one yard in diameter, about the size of an exercise ball, when it entered the atmosphere over eastern Pennsylvania, said Cooke.

CNN: Meteor lights up East Coast -- and social media

The "Tunguska Event" that flattened over 800 square miles of Siberian forest in 1908 was caused by a stony asteroid only 50 meters in diameter exploding in the lower atmosphere.

CNN: Space's threat to civilization