Stability of Interstellar ‘Big Dumb Objects’ | Centauri Dreams

So könnten sternengroße Megastrukturen im All existieren

Bisher ist unklar, ob riesige Alien-Konstruktionen tatsächlich existieren können. Eine neue Studie zeigt, wann die Bauten stabil wären.

Megastructures 2004x08 "Petronas Towers"

Designed by Cesar Pelli, the Petronas Towers were the tallest buildings in the world on the date of its completion. Located in Kuala Lumpur, the design of the 88 storey, 450m tall twin towers, carries an Islamic geometrical influence. The towers are a symbol of Malaysia’s pride. To instill competition, the contract for the construction of the towers were awarded to two different construction companies, each company was assigned to work on one of the towers. This episode takes a look at how the construction companies competed to complete their tower before the other. Problems faced, from the soil samples, the unique cement mixture used as a steel substitute, to the tropical weather, are covered.

Megastructures 2004x03 "Channel Tunnel"

The Channel Tunnel or Euro Tunnel is one of the world’s longest underground rail tunnels, and links England with France. Consisting of two rail tunnels and a small service tunnel in-between, they total 153 km in length. The documentary looks at the race between the British and the French to complete the tunneling of the Channel Tunnel and the obstacles faced in its construction.

Megastructures Special 7 "China's Ultimate Port (Yangshan Deep Ocean Port)"

In 2002, Chinese engineers and workers tackled one of the biggest construction projects on earth, the Yangshan Deep Water Port. Thirty km out to sea, with 20 km of quay and fifty berths, Yangshan is destined to become the biggest deepwater port ever built. Linked to China by the world’s second-longest ocean bridge, Yangshan’s deep water allows the world’s biggest container ships to come calling. Its massive cranes, cutting-edge control system, and focused personnel are already shattering records for loading and unloading gigantic container ships and it’s not even finished being built.