thekalki··on Can We Throw Satellites to Space? [video]You will loose lot of energy on bungee cord aerodynamics, heat, etc
thekalki··on Can We Throw Satellites to Space? [video]Instead of spin I would be leaning more towards rails on a mountain but this requires more space but should be much more easier on payload
thekalki··on Can We Throw Satellites to Space? [video]Earth might be little too thick for this but should work great on Moon, Mars.