The Fountains of Paradise
Arthur C. Clarke
 In the 22nd century, Dr Vannevar Morgan is a famous structural engineer who hopes to develop the 'space elevator' from a theoretical concept to reality and enlists the resources of his employers to carry out experiments. But the only suitable starting point (Earth station) for the elevator lies at the summit of a mountain in Taprobane occupied by an ancient order of Buddhist monks, who implacably oppose the plan. Morgan is approached by a Mars-based consortium to develop the elevator on Mars as part of a massive terraforming project. To demonstrate the viability of the technology, Morgan tries to run a thin cable of ‘hyperfilament’ from an orbital factory down to ground level at Taprobane. A monk at the monastery, a former astrophysicist who is a mathematical genius, tries to sabotage the attempt by creating an artificial hurricane using a hijacked weather-control satellite. His attempt is in fact successful, but in an ironic twist, the hurricane blows butterflies to the peak of the mountain. This fulfills an ancient prophecy that causes the monks to leave the mountain. The tower can be built on Earth after all. Forced to resign his position for acting beyond his authority, Morgan joins the Martian consortium named 'Astroengineering' and construction of the Tower commences. Several years later, the Earth-based tower is well under construction and travel up and down &mdash; both for tourists and for transfer to rocket ships &mdash; is being trialled. An astrophysicist and a group of his students and tower staff are stranded in an emergency chamber six hundred kilometres up after an accident with their transport capsule. They have limited food and air supplies. Whilst a laser on a weather-control satellite is able to supply heat, it is imperative to provide them with filter masks against the increasing carbon dioxide and also with food, air, and medical supplies (a theme earlier explored in Clarke's novel The Sands of Mars). Despite his rapidly failing health, Morgan asserts his right to travel up the tower in a one-man 'spider' to rescue them. He nearly fails, with limited battery power, but ultimately succeeds in reaching the chamber. As Morgan surveys the progress of his brainchild, his heart disease claims his life. A short epilogue envisages Earth many centuries later, after the sun has cooled and Earth has been depopulated, with humans now living on the terraformed inner planets. Several space elevators lead to a giant "circumterran" space station that encircles Earth at geostationary altitude. The analogy with a wheel is evident: the space station itself is the wheel rim, Earth is the axle, and the six equidistant space elevators the spokes.