Lehmann, who died aged 104 in 1993, studied earthquakes to find that the Earth had both an inner and outer core, a revelation which redefined how the planet was studied.
You can rent a kayak or paddle-boat from Lake Burley Griffin Boat Hire and explore the lake's outer reaches, where abundant wildlife – including a large mob of tame kangaroos at Weston Park – can be spotted along the forested shores.
In Croydon in outer London, the average income of buyers has hovered around £32,000 since Boris Johnson became mayor in 2008.
Over the two years of her higher school certificate, she has truanted frequently, she has failed to hand in assignments, she has failed to turn up on time, she has failed to meet uniform requirements, she has failed to attend some of her HSC trial exams, she has exhausted the patience of teachers and pushed to the outer limits the structural sympathies of the public school system.
Its graphic representation consists of a series of three circles, the innermost of which should be occupied by developed countries with absolute, economy-wide targets; the middle one, by emerging economies, with intensity, per capita or relative reduction targets; and the outer circle, by other developing countries, with non-economy-wide targets.
A blog I began a few years ago – a stunningly successful experiment in national secrecy located several thousand miles up a winding gorge in the outer reaches of the internet – had, like most blogs, all the virtual footfall of a moon crater in low season.
The work of avant garde stars such as David Byrne sits on the outer edge of this global melting pot.
Last November, KFC claimed to be the first brand to be visible from outer space with an estimated 87,000 sq foot logo of Colonel Sanders in the Nevada desert made from 65,000 tiles laid out over 24 days.
Since its launch, it has become a new web cult for its users in Russia, with thousands of witty snippets thrown on to social media every day – such as the one above, which sends an unsuspecting babushka on the Moscow metro into outer space.
Our knowledge of the outer solar system will be transformed.
But in the villages and outer suburbs more doctors and medicines were needed.
