Ai
Beauty
Biotech
Business
City
Clothing
Communication
Construction
Education
Energy
Entertainment
Family
Food
Gadgets
Government
Home
Human
Medicine
Nature
Privacy
Robots
Society
Space
Sport
Threats
Transport
Work

Fired into orbit

Whether or not a space elevator can ever be built remains to be seen. However, it is possible to create a system to minimize the cost of delivering cargo. Theoretically, such a system is already doable for unmanned small satellites. It requires a vacuum tube with electromagnetic accelerator guideways. This tube rests on a high mountain peak and stretches upwards to an altitude of around 10 km. Even higher, up to 30 km, is possible if stratospheric balloons are used. Projectiles inside the tube can be accelerated to first cosmic velocity. If the tube is 300-400 km long to ensure smooth acceleration and minimal overload, manned vehicles can be launched. What's more, there's no need to accelerate to 8-9 km/s. Half that speed is sufficient. It's enough for the shuttle to be supplied with a reaction mass for the engines, while energy can be transmitted to it via a laser beam from a solar power station flying at altitude.

I agree
8
I don't agree
6
margiz Я про это уже читал уже а где не помню 06 Feb 2019
Антон Дождиков По отдельности каждый из указанных способов вывода на орбиту уже рассматривался. См, например - https://aftershock.news/?q=node/373248&full Детальнее всех идея такой пушки изложена у StarTram см. - http://www.startram.com/ Однако суть предложенного метода - в комбинации способов выведения и довыведения на орбиту, 06 Feb 2019