Especially alien planets with Jupiter's gravity. It's well known that more gravity == steeper cliffs!
LostXOR
Fair enough, seems to be a legitimate enough study.
Do you have a source for that? I'm skeptical.
That doesn't really help unless the bag is also soundproof; it could just as easily store what you say and send it off later.
Technically it's just as efficient if you use an ideal bi-elliptic transfer, but that will take infinity years so it's definitely easier to just leave the Solar System entirely. You can also usually get a nice slingshot off a gas giant or two for massive delta-v savings!
People don't always make decisions perfectly rationally, unfotrtunately.
What about fishing boats? They're coming back with a ton of extra weight in fish.
Those are some serious manipulation tactics... I like it.
That's basically a space elevator (though space elevators are shorter and held up by centripetal forces). Unfortunately they're quite outside our technological capabilities at the moment.
Better to learn something new than to stay in a hole of ignorance because I can't accept I'm wrong.