Does anybody know, why the rotary rocket body did not start spinning itself once it lifted off the ground? There’s only one propeller.
In Defense of Bad Ideas
51–54 of 54 posts
Re: In Defense of Bad Ideas
#52Earlier quoted context omitted.
Escape velocity is a velocity to escape gravitational field. Orbit velocity is a velocity to orbit a thing inside its gravitational field. For example, ISS has orbit speed of about 7.7 km/s at 350 km above the ground. Orbit speed "at the surface" of Earth is about 8km/s, I believe.
Thanks for the clarification.
My point, not to be overly disrespectful, is that suborbital flights are so different from what SpaceX has done that they seem like party tricks, not stepping stones.
In the big picture, it's not a huge amount wasted, I was just remarking on it being less significant in retrospect than one might have hoped.
Re: In Defense of Bad Ideas
#53Earlier quoted context omitted.
In this case, the original commenter explicitly (erroneously) stated "options". Options cannot have unlimited downside; you can always choose not to exercise the option.
If you write a put option, it has downside limited only by the underlying zero price of the security minus the premium. If you write a call option, your downside is theoretically unlimited. If you buy a put or a call your downside is limited to the option premium. edit: i should say writing a put option (short put) your potential downside is the difference between the strike price of the option and the premium, if th…
Thanks for clarifying
Re: In Defense of Bad Ideas
#54Some ideas are just bad
Example: Should I take this unmarked pill a stranger just handed me?
No you probably shouldn't
Example 2: Should I jump off this cliff with rocks at the bottom? Is it higher than 2-5 feet. Probably not.
Example 3: Should I eat this raw meat product that has been sitting out on my counter for more than a day. Probably no. I understand the point here, but some ideas are just bad ideas.