Search found 190 matches

by rusty
Wed Oct 17, 2012 2:56 pm
Forum: Apollo, and more space hoaxes
Topic: RedBull SpaceDive
Replies: 202
Views: 212481

Re: LIVE NOW - man leaps from edge of space

Balloon looks a little small to me. It should have diameter 510 meter ... at least at 39 000 m altitude. :D They claim it's 102m in height and about 129m in diameter when fully inflated - and higher but thinner when at ground level. But in the first image I posted, it seems that the balloon is only...
by rusty
Wed Oct 17, 2012 11:08 am
Forum: Apollo, and more space hoaxes
Topic: RedBull SpaceDive
Replies: 202
Views: 212481

Re: LIVE NOW - man leaps from edge of space

I can't tell for sure if some or all aspects of this event have been faked or not, but from a purely technical point of view I can't see why this shouldn't be possible, at least in theory. One objection to the feasibility of the whole thing is the density of helium, which is greater than the air den...
by rusty
Sun Oct 14, 2012 5:32 pm
Forum: Apollo, and more space hoaxes
Topic: MARS & the Curiosity Rover - NASA's latest hoax
Replies: 595
Views: 651617

Re: MARS & the Curiosity Rover - NASA's latest hoax

Well, how do we derive a density profile from this pressure profile? Could we simply state that the air density at ground level = 0.006 * 3.8 * (earth density = 1.2) = ~ 0.027 kg/m^3 ? And then apply factor 0.1 for each 20 km altitude? My error last time was confusing hPa with Pa, so I got it wrong ...
by rusty
Sun Oct 14, 2012 11:24 am
Forum: Apollo, and more space hoaxes
Topic: MARS & the Curiosity Rover - NASA's latest hoax
Replies: 595
Views: 651617

Re: MARS & the Curiosity Rover - NASA's latest hoax

Here is the martian atmosphere profile. http://nova.stanford.edu/projects/mgs/images/pp9801282318.gif When Heiwa always says it is very thin I always think he is being too generous in his description. If I compare this pressure diagram with the pressure/density diagram on earth, I must conclude, th...
by rusty
Sun Oct 14, 2012 10:38 am
Forum: Apollo, and more space hoaxes
Topic: BURAN - and the spaced-out Soviet efforts
Replies: 32
Views: 63359

Re: BURAN - and the spaced-out Soviet efforts

For what it's worth - I saw the Burak OK-GLI recently too. It's exhibited in the technical museum at Speyer, Germany. But you can't really get "inside" to see what is there, except for the tail part where you see lots of cables but nothing else. This strikes me as very odd. Did they remove everythin...
by rusty
Sat Oct 13, 2012 3:35 pm
Forum: Apollo, and more space hoaxes
Topic: MARS & the Curiosity Rover - NASA's latest hoax
Replies: 595
Views: 651617

Re: MARS & the Curiosity Rover - NASA's latest hoax

Same table rendered in 10km-steps:

http://s000.tinyupload.com/index.php?fi ... 2128087528

Here's the trajectory in a more proportionate graph:

Image

rusty
by rusty
Sat Oct 13, 2012 3:19 pm
Forum: Apollo, and more space hoaxes
Topic: MARS & the Curiosity Rover - NASA's latest hoax
Replies: 595
Views: 651617

Re: MARS & the Curiosity Rover - NASA's latest hoax

Yeah, right, the table needs working on ;) The unit of air density is kg/m3 as you suspected. On earth, density is about 1.2 - so I assumed a "much thinner" atmosphere on Mars to be at 0.2 - just a wild guess, of course. But as it turns out, I was wrong to assume that air density increases in a line...
by rusty
Sat Oct 13, 2012 11:23 am
Forum: Apollo, and more space hoaxes
Topic: MARS & the Curiosity Rover - NASA's latest hoax
Replies: 595
Views: 651617

Re: MARS & the Curiosity Rover - NASA's latest hoax

The forces acting on the MSL at re-entry must have been twice as big as the forces acting on Apollo 11. In your model could you please indicate the total force and the relation between friction and turbulence forces during the various stages of the descent? It seems most deceleration in your model ...
by rusty
Fri Oct 12, 2012 9:34 pm
Forum: Apollo, and more space hoaxes
Topic: MARS & the Curiosity Rover - NASA's latest hoax
Replies: 595
Views: 651617

Re: MARS & the Curiosity Rover - NASA's latest hoax

Hi everyone, I've been following pretty much all of this long thread, because I've been largely skeptical about this latest NASA "effort" like all of their previous ones. When I read about the "landing phase" in the newspaper I was intuitively thinking "bullshit". Some of the members here voiced cla...
by rusty
Wed Oct 10, 2012 8:59 pm
Forum: HOW TO REGISTER at CLUESFORUM - and other tips
Topic: REQUIRED: Introduce Yourself
Replies: 2445
Views: 2070496

Re: REQUIRED: Introduce Yourself

Hi there everyone, glad I finally found you! I'm a software engineer and from southern Germany as well and here's my personal data file: age: 40+ gender: male profession: software engineer legal status: married with children key points of interest: life, universe and everything - bound to find out t...