Rocket Science 301: Radical Concepts in Propulsion; Man

Tutorial on space elevator, scramjet engine, national aerospace plane, man in space. Roughly follows curriculum of Civil Air Patrol Cadet Aerospace Education Module 6. See www.midnighttutor.com for a larger format video.

Category:

Science & Technology

Tags:

• civil
• air
• patrol
• cap
• rocketry
• rocket
• science
• aerospace
• education
• tutorial
• space
• elevator
• scramjet
• nasp
• manned

[ikanipo]

yea but there aren't alot of "smart" people in the world.

[midnighttutor]

rocketscientist say:  a lot not alot

[AlwaysHopeful87]

Another nice video. This subject may become very ripe if the H3 mining on the moon takes-off.

[theberlindoctor]

Great video man. As a layman, I learned a lot.

[matthewakian2]

@currentliabilities Thanks. 

[currentliabilities]

@matthewakian2 In theory, yes. If you did not lower it deep into the atmosphere, because of overheating and drag. Realistically, no. It's not practical. The ISS orbits at an altitude of about 390km at a speed of 7.7km/s (the atmosphere ends at about 80km). If you're going to get something going that fast (Mach 28 at 75km altitude), then you're better off just boosting into orbit. The SR-71 max was Mach 3.3 at 24k.

[matthewakian2]

For all you scientific minded people (cause I don't have a clue), would it be possible to have a space station in low earth orbit (or maybe a bit higher), where a section of the space station could be lowered on a tether into the Earth's atmosphere, low enough that a high flying plane or similar could board, and then be pulled back up into Low Earth Orbit?

[matthewakian2]

The hypersonic craft discussed around the 20:00 point sounds a lot like the Skylon spaceplane the Brits are developing.

[AeonicMedia]

i deduce that at any point below geostationary orbit the cable will want to fall and beyond that point it will want to fly away from the earth......it is just a hunch but the weight of the cable closest to the earth will be much greater than the cable out of gravitys reach so as such my hunch is that the inner cables length will be the RMS (Root Means Square ) of the outside length of cable to make a balanced(ie Untensioned) cable

[UnTiedMusicStudio]

@JJGMUSIC Go do a little research. The only thing keeping a space elevator from being built today is the tensile strength of the tether. They're about 3x away from being able to do it today (2011). Check the Spaceward Foundation, the Strong Tether challenge (not won yet), and the Beamed Power Challenge (which has already been won by Laser Motive). The physics is completely sound. We could build one on the moon today and use it to launch materials back to earth.

[sourmanofcoal]

@surfsup927 he doesn't look 50

[sourmanofcoal]

@Dudeness21 he doesn't look 60.

[sourmanofcoal]

@surfsup927 and what do you have? Instead of calling people dumb, clean your own asshole faggot.