Forum Menu - Click/Swipe to open
 
Top Members

Mars Landings Faked?

Jump to page:

You have contributed 33.0% of this topic

Thread Tools
Appreciate
Topic Appreciation
To appreciate this topic, click 'Appreciate Topic' on the right.
#46 [Permalink] Posted on 16th February 2020 10:38
I copy and paste from NASA procedure and guidelines Standards.
Quote:

Whenever possible, the flight test program should be conducted across the entire mission
profile. A sufficient number of flights should be flown such that the flight test data for the analytical math models can be extrapolated to predict the performance of the space
flight systems at the edges of the operational envelopes and to predict the margins of the
critical design parameters. This is generally possible for systems with discrete mission
profiles of manageable duration such as ETO and crew rescue space flight systems.
These systems can usually be operated through several complete ascents, orbital
transfers, and/or descent profiles and should give good confidence in the suitability of the
design for the planned mission.
Unquote:
report post quote code quick quote reply
No post ratings
back to top
#47 [Permalink] Posted on 17th February 2020 07:40
I was curious, what is the maximum velocity human body can withstand? I mean, at a certain velocity our blood will freeze, could be our nervous system will break etc.

NASA claims that during their lunar expedition the maximum velocity reached was
39,888 km/hr; Astronauts body withstood that.

Now NASA claims that in Mars mission, the velocity could be in Lakhs of Kms/hr. Should we forget Biology and Medical sciences while discussing Space sciences.
report post quote code quick quote reply
No post ratings
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#48 [Permalink] Posted on 17th February 2020 07:48
Anonymous wrote:
View original post
Quote:
I mean, at a certain velocity our blood will freeze

Do you have a source for this tidbit of information?
I was pretty sure blood can only "freeze" due to temperature.

report post quote code quick quote reply
No post ratings
back to top
#49 [Permalink] Posted on 17th February 2020 07:54
In Need of Teaching wrote:
View original post


You mean that our body can withstand infinite speed? Can you prove that. Or do have any data on limit on this velocity.
report post quote code quick quote reply
No post ratings
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#50 [Permalink] Posted on 17th February 2020 07:56
Anonymous wrote:
View original post

No, I'm asking about velocity causing the blood to freeze.
Quote:
I mean, at a certain velocity our blood will freeze


Edit: Sorry, I'm sure that came across as a "snide" remark. It wasn't until I thought about it for awhile that I realized what you were probably referring to.
report post quote code quick quote reply
No post ratings
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#51 [Permalink] Posted on 17th February 2020 08:02
In Need of Teaching wrote:
View original post

Perhaps you're referring to G forces?
G Forces can cause the blood to stop pumping, but G forces are a result of acceleration and not velocity.

Fighter pilots encounter heavy G's due to high speed maneuvering, but it's the maneuvering that causes it. If they're flying straight and level, it's not an issue.
report post quote code quick quote reply
+1 -0
back to top
#52 [Permalink] Posted on 17th February 2020 08:22
In Need of Teaching wrote:
View original post


Let me rephrase the sentence. We have 3 vital systems, Transport system, Respiratory system, Nervous system. How does velocity affects these systems.
Is it zero effect for Infinite velocity?
Does a human or an animal moving at lakhs of Kms/hr will not have any effect on its body. Acceleration at even small speeds has it affects, but velocity?
report post quote code quick quote reply
No post ratings
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#53 [Permalink] Posted on 17th February 2020 08:24
Anonymous wrote:
View original post

To the best of my knowledge, no one has determined a velocity that causes damage.
G force limits, definitely.
Centrifugal force, definitely.
report post quote code quick quote reply
+1 -0
back to top
#54 [Permalink] Posted on 17th February 2020 09:03
In Need of Teaching wrote:
View original post


OK it is all theoretical. No practical experience available on affect of velocity on human body.

You didn't reply to NASA Standards posted by me for human flight. They say multiple test flight must be taken before human flight. ISRO standards say minimum 4 test flights before human flight.

So, unlike 1969, today NASA is not in an hurry, it must have minimum 4 complete test missions to mars before it send humans to Mars. I doubt, it will happen. Or they will fool masses.
report post quote code quick quote reply
+0 -0Agree x 1
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#55 [Permalink] Posted on 18th February 2020 03:13
Anonymous wrote:
View original post
Yeah, I forgot to go back to that.
Most likely they will test whatever they can from Earth.
My guess is after whatever testing can be accomplished here, they'll move on to a manned mission.
Astronauts are already volunteering, and they haven't even tested the Orion spacecraft in earth orbit yet.

(Edit) If you look back at what you quoted from the manual, it mentions a few things:
"Whenever possible"
"This is generally possible for systems with discrete mission
profiles of manageable duration such as ETO and crew rescue space flight systems.
These systems can usually be operated through several complete ascents, orbital
transfers, and/or descent profiles
and should give good confidence in the suitability of the
design for the planned mission" (They leave a lot of latitude on testing requirements)
report post quote code quick quote reply
+1 -0Like x 1
back to top
#56 [Permalink] Posted on 18th February 2020 07:31
In Need of Teaching wrote:
View original post


Last time you claimed that one experience of Soviets in orbiting the moon and returning to earth to was sufficient for NASA to go for human lunar mission. I continue to disagree on that. In particular, the return journey was a miracle. And speaking of miracle is an abuse to science.

Are we going to witness another miracle of man landing on Mars and returning safely to earth at the first attempt itself. I would call a miracle, because no machine has returned after landing on Mars.
Or work has begun in Hollywood as backup measure, fool proof this time; so that no conspiracy theories are evolved.
report post quote code quick quote reply
No post ratings
back to top
#57 [Permalink] Posted on 18th February 2020 08:46
I quote from space site:

This engine lifted the ascent stage (upper section) of a Lunar Module off the surface of the Moon. The ascent stage then docked with the orbiting Command and Service Modules. The ascent engine had to perform with high reliability; [b malfunction could have stranded the astronauts on the Moon.
Unquote:
So miracle saved the Astronauts. Without any previous experience and no test flights, everything worked error free. Lunar Module lifted from moon surface, raised to 60 kms altitude, Searched and caught a high velocity moving Orbiter, docked with it and started its return journey.

And we are told "don't doubt NASA's capabilities"
report post quote code quick quote reply
+0 -0Like x 1Winner x 1
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#58 [Permalink] Posted on 18th February 2020 12:21
Anonymous wrote:
View original post

I'm not going to get dragged into a silly debate.
I thought you just wanted answers to a question.
report post quote code quick quote reply
+0 -0Agree x 1
back to top
#59 [Permalink] Posted on 18th February 2020 12:58
It could be silly. OK.
Guide me where my posts were against scientific temper.
report post quote code quick quote reply
No post ratings
back to top
Rank Image
In Need of Teaching's avatar
Offline
USA
1,059
Brother
385
In Need of Teaching's avatar
#60 [Permalink] Posted on 18th February 2020 13:38
Guest-49821 wrote:
View original post

I'm told that silence = acceptance.

So you win Brother, because I'm not going to waste my time on this.
report post quote code quick quote reply
+2 -0Like x 2
back to top

Jump to page: