/sci/ - Science & Math

>>14582257
How is the rocket equation even real just close your eyes and use nukes and pusher plates, just nuke a desert hahaha.

>>12506019
merry christmas spacebros

>>12227785

>>11025681
>Sea Dragon was the king of paper rockets
Nah, it came in behind Orion.

>>10365195
>So where are they putting the extra 1300 tons of fuel? The numbers of the BFR just dont make any sense
Are you sure you are mixing numbers for both stages with numbers from just one stage?

>>10365196
>Downplaying spectacular success we are witnessing these years by asspulling random and ultimately irrelevant facts is ugly
I didn't think that is what I was doing at all. I applaud SpaceX for all their success and hope in the long term they financially bankrupt ULA to match ULAs moral bankruptcy. I'm just always skeptical of considering a development engine hitting literally 1% of it's design goal (3 second burn compared to 10 x 5 minute burns between refurbishment).

>>10365204
>This is their problem actually. BO works too much like oldspace
Depends on their goals, if they are serious about the tourist market taking your time to maintain 100% reliability makes perfect sense as a single failure will lead to strict regulation and reduced interest from the public.

>I'm not sure why they are waved around as main competitor when in fact that would be ULA
Agreed, I was simply responding to another anon that brought them up and I don't persoanlly see them as a launch provider competitor until New Glenn flies.

>>9517867
>>9517871
What really makes me sad is once NASA was crazy enough to pursue NERVA and Orion, now they can't imagine reusable rockets despite the fact 2 companies are using them.

I am sick of this shit. Let's make friends with Russia and redo all of our nuclear treaties.

We basically don't have Moon bases, Mars bases, and interplanetary space ships and stations because liberals and money. We could have launched 100x the payload of Apollo using this in the same time frame.

Project Orion 2.0 when?

Who needs those gay ass elevators if we can build an Orion spaceship and just nuke ourselves into space?

>>8193557

>>8068424
>Except NASA cannot do EPPP because the US is signatory to the Partial Nuclear Test Treaty. The Partial Nuclear Treaty bans nuclear tests outright. And yes EPPP would classify as a nuclear test.

Outer space and partial nuclear test treaties could be amended to allow the use of nuclear energy in space for the benefit of all mankind. Pulse units could be weaponized just as anything with high energy density can. You can make thermobaric weapons out of gasoline, but that doesn't mean we can't use it.

>> We can't do it because we say we can't
>How do those numbers compare to the dosage from CBR?

The Curiosity rover measured average of 1.84 mSv/day of cosmic radiation during transit to mars. So shorter transit time and shielding both would reduce the absorbed dose, which Orion Mars class mission profiles would have had.

http://www.michaeleisen.org/blog/wp-content/uploads/2013/12/Science-2013-Hassler-science.1244797.pdf
> Table 2