One thing to note: One of the most difficult parts of estimating the effect of drag is that, if a stage is tumbling uncontrollably, the exact cross sectional area is constantly changing.
@@cjkula Actually, that's largely due to the fact that atmospheres in KSP have hard delineated boundaries (anything above 70km of Kerbin is in total vacuum) and that KSP simulates gravity with single body problem mechanics.
@@thejimmydanly and ksp wont simulate atmosphere entry if the part isnt loaded, unless if the orbit passes below 35km, in which case it will terminate at that altitude
Thank you for this educational video about what happen to the second stage, I hope many people will learn from your video and not going to assume dumb thing Everytime they heard about something like this
I literally waited for 2 months for your video. Amazing. Also your last video was great too. I am pretty sure you’ll hit a million by 2022. Keep up the good work.
Nearly 40k at the moment and 2022 is almost coming to an end! Certainly a long way to go to hit a million. Can it be done in 2 month's. Hmm 🤔 Edit: and just to add, there hasn't been any other videos uploaded for a year so I think it's safe to say that million won't be achieved! Looks like this channel has been abandoned 😕
great video! it wasn't to long ago that i thought about how or if Space X does it ( i played a lot of Kerbal space program at that time), since they never show that part in their broadcasts.
This is a very well-made video and a really informative channel! Someone once said Musk was an idiot for placing the Starlink sats in LEO at an altitude of 550km because they’d eventually experience orbital decay, I never knew they had krypton ion engines to manually deorbit at their deadline. New subscriber! Keep it up, your animations are amazing.
That altitude is a safety feature also, because of orbital decay. If a sat has a complete failure (rare) and ends up bricked, it’ll naturally fall out of orbit within a few months/years. 😁
Thanks so much for explaining this question to me. I have wondered about the 2nd stage issue for some time now. Also respect to SpaceX for their safe disposal technology.
Thanks for this amazing explanation. I learn a lot about unknown things like these but overall I never found an easy way to understand what happens with the second stage like you describe. Thanks a lot, greets from Argentina
I fallow lots of channels that deal with SpaceX and other space launch companies. This is the first one to explain what happens to the second stages for SpaceX. Now what about the 2nd. stages for all the others. Is it the same ? Thanks for the excellent video. Subscribed.
Thank you for your excellent video. I have a follow-up question, what happens to all the stuff that gets burnt up in space, and is it toxic if it reaches the earth?
Use each second stage to construct a space station, they can all be designed to fit together like a jigsaw puzzle. plus anti gravity can also be used to generate electricity, keep the circular motion going in the same way we would keep a bicycle going with small pushes whilst generating power from its overall rotation. it would extend the distance that can be travelled by using the power generated as efficiently as possible. A similar strategy can be used to extend the distance satellite's can travel by rotating them on an axes in transit.
I miss the good old days when I could pledge 5 dollars to youtube channels like yours without going bankrupt. Brazilian currency is worth nothing nowadays. But I'll give you my subscription and share your videos with my friends. Awesome content.
Also Technically for Starship to get 100% reusability we to produce the fuel out of H2O and CO2 from the air. Even if fuel is about 10% of the cost, >80% of the takeoff mass is propellant.
Hello, Thanks for this amazingly informative video. This has been a great help for my assignment. Can I please request for information on various materials used for the fabrication of components?
Bro your channel is seriously about to blow up! Love your content! Some constructive criticism for you is make to content just a bit more understandable, because some of the information that you talk about, you need to have a little bit of knowledge before hand. I luckily have a little bit of knowledge before hand, but have struggled in the science area, but still understand bits and pieces of what you're saying. Otherwise, I'll definitely be coming back to watch your video every week!
I'm going to guess if you buy an Admiralty chart showing the Pacific Ocean the 'rocket graveyard' would be marked as a danger to shipping? I mean it would be pretty foolhardy to plot a course to sail directly in the path of a second stage dump ground.
Not really, these kinds of events are still pretty rare, and there are noticed to Mariners (NOTMARs) published ahead of time. The “aim point” is literally the farthest place possible from any land (Point Nemo), so it’s unlikely you’d want to cross through there anyway.
@@metalhead4700 Pretty rare events have a nasty habit of being the ones that involve an accident. Can you imagine the court case involving a dumped rocket booster landing on a container ship? Of course a container ship has the capability of receiving a NOTMAR anywhere in the world. A small cruising boat may not. I guess you're about as likely to be hit by a meteorite as you are a piece of falling rocket, maybe even less so.
@@And-rc9yy hence putting the “graveyard” in the place where there’s least likely to be anyone in the first place. Any bits that actually survive reentry tend to small or lightweight, so even if you did cruise through there having something fall on your head is *extremely* unlikely. As in, getting struck by lightning *while* you’re winning the lottery unlikely. And those NOTMARs are usually out days to week in advance.
I dont get this, is the falcon 9 2nd stage actually in orbit once it detaches from the dragon capsule? Sure it might be high up, but how high is its periapsis?
The falcon second stage doesn't stay inline. After engine shutdown it will turn in every possible direction. Thus the area effected is not just the circular shape on top.
What happened to all the second stages? How many have reentered? How many left earth orbit? How many GTO stages have reentered, and how many are still orbiting for how long?
Thank you! I have asked what happens to SpaceX second stage for years! Most people say that they just allow it to randomly reenter, so I asked why they didn't do a deorbit burn. The ignorant invariably said that they didn't do this. This was not satisfying to me. :)
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Thanks!
One thing to note: One of the most difficult parts of estimating the effect of drag is that, if a stage is tumbling uncontrollably, the exact cross sectional area is constantly changing.
guess that explains why unpiloted debris from your craft never deorbits on it's own in kerbals.
100% reusability is the cure.
@@cjkula Actually, that's largely due to the fact that atmospheres in KSP have hard delineated boundaries (anything above 70km of Kerbin is in total vacuum) and that KSP simulates gravity with single body problem mechanics.
@@thejimmydanly and ksp wont simulate atmosphere entry if the part isnt loaded, unless if the orbit passes below 35km, in which case it will terminate at that altitude
Yer, the Chinese are great at this.
dude omg why your channel so underrated I guess it's part of growth, anyways excellent work really enjoyed it keep it up it'll be worth it
Hey RUclips algorithm! Throw this into everyone's recommended!
Seriously man, you are 🔥🔥🔥!!
Dude you just blew up on RUclips. Great work sir.
thanks man
@@aaravp2248 WTF
he is talking about the channel user
Not you
@@Omkharche Are you sure?
@@Omkharche People can have multiple accounts on RUclips
This channel has been abandoned lol. Not a single video uploaded in a year 🤷🏻♂️
How does this Chanel not have more subscribers? This is top notch quality! Keep up the work
It's because this channel has been abandoned. There's only a few videos and the last upload was a year ago. That's why!
Great video & channel!!!
So underrated.
Very very very very very underrated
This is absolutely amazing
Once again !!
Nice videos, saw on my recommended, adding you to my space-related channels
Thank you for this educational video about what happen to the second stage, I hope many people will learn from your video and not going to assume dumb thing Everytime they heard about something like this
I literally waited for 2 months for your video. Amazing. Also your last video was great too. I am pretty sure you’ll hit a million by 2022. Keep up the good work.
Nearly 40k at the moment and 2022 is almost coming to an end! Certainly a long way to go to hit a million. Can it be done in 2 month's. Hmm 🤔
Edit: and just to add, there hasn't been any other videos uploaded for a year so I think it's safe to say that million won't be achieved! Looks like this channel has been abandoned 😕
Fascinating and so well produced!
OMG, I've searched everywhere to understand what happens to second stage! Thank you, sir.
Ok 2:23 in and this is fantastic man hela great job scott manley would be so proud
I was waiting on this explanation, you did a great job!
Wow! You read my comment on your last video and answered my question!
Thank you so very much!!
Danke!
Precise, simple, nice animations, well done, it's a very good video!
This was excellent!!! Thank you!!! Keep up the amazing work!!
Watched several videos on this channel and it's all very well explained and animated, you earned a subscriber
That’s super kind! Glad you enjoyed them!
Great job. Very well put together. I enjoyed it.
Love that Raptor sound! 😖
that is the most fantastic animation I have ever seen on youtube.
I Love a more in depth description of Rocketry that this channel provides.
Your channel has given me hope. The last time I was here you were below a thousand subs
keep up good work man. I'll try to find more subscriber for your wonderfull channel.
Another great vid!!! Let's hope the yt recommendation gods will bless you
I’ve got to say !!! That was really informative. Thank you for explaining it in the most simplest way
Excellent video! A thorough explanation that was engaging and educational! Awesome work!
The amount of variables is significantly more than I expected. At least in terms of drag coefficient
Hey... You are rocking man... Most underrated page. Pls keep posting more such technical and make rocket science easy to understand.
Fantastic explanation! Great job. Subbed.
so well animated, good job
Well done!
Great job on this video. It answered all my questions!
how did you achieve the fire effect for the rockets and the re-entry of the crew dragon pod?
Its a 3D solid with wave modifier for motion and a very high emission factor. I added some camera blur as well!
Excellent stuff!!!
Fantastic work here! Animations are superb!
subscribed ..really good
This was really really good
Amazingly clear explanation. Thanks for sharing.
Great Job, very well explained
great video! it wasn't to long ago that i thought about how or if Space X does it ( i played a lot of Kerbal space program at that time), since they never show that part in their broadcasts.
This is very informative!
Even for people who know this stuff watching these videos is very fun entertaining and its also a quick revision . Keep up the good work.
Great explaination on this topic man. Glad I found your channel. Nice work.. Keep it coming!
ight ight i finally subscribed! this is interesting channel! thank you
Answered all my questions, thanks!!!
Great video!
Wow, subscription earned with just this one video. Looking forward to more! 👍
Excellent work
Seriously, wow.. thank you
You should explain the SpaceX starship system
Nicely explained!
This is a very well-made video and a really informative channel!
Someone once said Musk was an idiot for placing the Starlink sats in LEO at an altitude of 550km because they’d eventually experience orbital decay, I never knew they had krypton ion engines to manually deorbit at their deadline.
New subscriber! Keep it up, your animations are amazing.
That altitude is a safety feature also, because of orbital decay. If a sat has a complete failure (rare) and ends up bricked, it’ll naturally fall out of orbit within a few months/years. 😁
Quality content
Great information. Further success depends on elocution.
Thanks so much for explaining this question to me. I have wondered about the 2nd stage issue for some time now. Also respect to SpaceX for their safe disposal technology.
Wanted to know this… and you nailed it explaining
You win the internet today, sir.
ALways wondered , what happens to the second stage . Did not know it did a de orbit burn
At last someone explains this question I had for a long time
Thanks for this amazing explanation. I learn a lot about unknown things like these but overall I never found an easy way to understand what happens with the second stage like you describe. Thanks a lot, greets from Argentina
Dude do about rockets and space videos dude I subscribed your channel you are really underrated
Keep it up!
excellent stuff.
I fallow lots of channels that deal with SpaceX and other space launch companies. This is the first one to explain what happens to the second stages for SpaceX. Now what about the 2nd. stages for all the others. Is it the same ? Thanks for the excellent video. Subscribed.
Hey! What's your background music source? Sounds really calm, love it.
Fascinating channel
Did you stop producing :( your channel was so great
No I did not!! I. I’m working on a new video, but I’m very busy with work! Stay tuned!
Thank you for your excellent video. I have a follow-up question, what happens to all the stuff that gets burnt up in space, and is it toxic if it reaches the earth?
I've always wanted to know this thanks
Not bad at all, sir!
Use each second stage to construct a space station, they can all be designed to fit together like a jigsaw puzzle. plus anti gravity can also be used to generate electricity, keep the circular motion going in the same way we would keep a bicycle going with small pushes whilst generating power from its overall rotation. it would extend the distance that can be travelled by using the power generated as efficiently as possible. A similar strategy can be used to extend the distance satellite's can travel by rotating them on an axes in transit.
Thanks for the info! I was really hoping Spacex had a plan for their second stage. Now I’m even more impressed with their accomplishments!
Cool, always wondered 👍
the timimng couldnt be more perfect i asked from the reuseable first stage and got recomended this
I miss the good old days when I could pledge 5 dollars to youtube channels like yours without going bankrupt. Brazilian currency is worth nothing nowadays. But I'll give you my subscription and share your videos with my friends. Awesome content.
Hey man! I hope things get better!
It would be neat if Space x showed us the deorbit burn and allowed the second stage to transmit video until it starts to heat up .
I second that thought.
~ 0:50 - You have a bug in air density numbers: "10" is missing from the numbers in exponential notation.
Also
Technically for Starship to get 100% reusability we to produce the fuel out of H2O and CO2 from the air. Even if fuel is about 10% of the cost, >80% of the takeoff mass is propellant.
@@lukeskywalker7457 Yes, that's seldom counted. But it's not only doable, but necessary for Mars. Sabatier process.
Hello, Thanks for this amazingly informative video. This has been a great help for my assignment. Can I please request for information on various materials used for the fabrication of components?
nice
Your intelligence is showing. Thank you for spreading it around. ☺️🤗
Good vid
Thank u！
Video idea: can you explain: how a Falcon 9 can withstand re entry by doing a re entry burn
You should be a teacher. Very well explained . Thanks for the share👍🏻✌🏻🇨🇦
He would be a great teacher. You should teach this..
Bro your channel is seriously about to blow up! Love your content! Some constructive criticism for you is make to content just a bit more understandable, because some of the information that you talk about, you need to have a little bit of knowledge before hand. I luckily have a little bit of knowledge before hand, but have struggled in the science area, but still understand bits and pieces of what you're saying. Otherwise, I'll definitely be coming back to watch your video every week!
I'm going to guess if you buy an Admiralty chart showing the Pacific Ocean the 'rocket graveyard' would be marked as a danger to shipping? I mean it would be pretty foolhardy to plot a course to sail directly in the path of a second stage dump ground.
Not really, these kinds of events are still pretty rare, and there are noticed to Mariners (NOTMARs) published ahead of time. The “aim point” is literally the farthest place possible from any land (Point Nemo), so it’s unlikely you’d want to cross through there anyway.
@@metalhead4700 Pretty rare events have a nasty habit of being the ones that involve an accident. Can you imagine the court case involving a dumped rocket booster landing on a container ship? Of course a container ship has the capability of receiving a NOTMAR anywhere in the world. A small cruising boat may not. I guess you're about as likely to be hit by a meteorite as you are a piece of falling rocket, maybe even less so.
@@And-rc9yy hence putting the “graveyard” in the place where there’s least likely to be anyone in the first place. Any bits that actually survive reentry tend to small or lightweight, so even if you did cruise through there having something fall on your head is *extremely* unlikely. As in, getting struck by lightning *while* you’re winning the lottery unlikely. And those NOTMARs are usually out days to week in advance.
@@metalhead4700 You're right, I will tell myself not to worry next time i'm out sailing mid Pacific (only crossed once).
I dont get this, is the falcon 9 2nd stage actually in orbit once it detaches from the dragon capsule? Sure it might be high up, but how high is its periapsis?
What softwares do you use for these animations sir
...Varied gravitational pull of earth ....could you do a graphic there of please
Count me as a big fan! 👍
The falcon second stage doesn't stay inline. After engine shutdown it will turn in every possible direction. Thus the area effected is not just the circular shape on top.
What happened to all the second stages? How many have reentered? How many left earth orbit? How many GTO stages have reentered, and how many are still orbiting for how long?
thanks a lot
Thank you! I have asked what happens to SpaceX second stage for years! Most people say that they just allow it to randomly reenter, so I asked why they didn't do a deorbit burn. The ignorant invariably said that they didn't do this. This was not satisfying to me. :)
4:04 sorry man why do you say that the rocket flips to come back to earth?