Finally understood how those things work!! Seeing them on Falcon 9, I though "how do those create drag, if it's just a grid?" It doesn't create drag, it creates a torquing vector! Thanks a lot!
I know you said unedited... but if you could have added a short clip of one in a air tunnel to show the bubble you were talking about ether cg or real like a 5 second clip to show what you meant..... not all of us are rocket scientist lol.. we need a little aid to get your point
Nothing lacking in this video. But the main videos of late were more of a demonstration of "look at this cool stuff". Your older videos were more like "let's learn how this cool stuff works".
Exactly this! "But the main videos of late were more of a demonstration of "look at this cool stuff". Your older videos were more like "let's learn how this cool stuff works"."
I love these type of videos but I think that this content is better suited for this channel rather than the main channel. I'm not quite able to put the reason of why into words though.
I agree, I like this style along with the edited. This style is better for the 2nd channel as it's more informal. The more formal, professional style works better for the fist channel. It helps us know what to expect and people will have differing opinions on the two styles so they can subscribe to both or the one they like better.
#1 - I do like this style of video #2 - I love how curious you are, and how you like to figure things out. Your willingness to put effort in to doing that is beautiful. Anyway, at 1:05 we catch a glimpse of a whole other topic grabbing your curiousity for a moment before you force yourself back in to your intended topic - fantastic. Thanks for asking questions, and sharing your process of answering them. #3 - Naming this style: Smarter Moments?
From what I've read, it's only transonic speeds that grid fins have difficulty with. Once you go supersonic, the shock waves quickly angle back until they aren't impinging on the neighboring grids and the fin starts operating normally. I know that SpaceX has said that their grid fins sork find in subsonic and supersonic regimes and that at transsonic, the command authority reverses for a bit since the grid fin acts like a flat fin perpendicular to the airflow.
Yeah, I've heard that SpaceX's grid fins are more effective at supersonic than subsonic. And thinking about it, increased drag of the design is also maybe desirable when you're trying to fall gracefully.
Correct. When he's talking about a "bubble" in front of the fin, he means a bow shock. But when the Mach number is high enough, the holes in the fins "swallow" the shock (overspeeding), resulting in a bunch of oblique shocks with correspondingly lower drag and better control authority.
DKM101 well keep in mind, too that the air is thinner where SpaceX starts using grid fins, and it actually slows itself down to subsonic speeds too, so SpX really has nominal use of grid fins all the way down(I assume. IANA Rocket Scientist)
THIS! This video is what people should be doing all over the place - thinking about things and the whys and hows of things. If I were a science teacher, I'd have all my students turn in stuff like this: get your cellphone, walk up to something and explain it on camera.
you are my favorite engineer! my girlfriend and i have bought your shirt and posters, even got my brother to buy your shirts. God bless you bro and i admire you in many ways. Thanks for this upload. It is inspiring to have you talk about random things and not worry about editing and waiting to post. once again Thanks for sharing your knowledge with us!
It's !always! great to listen to you, but your regular videos are simply superior. It shows how much work you put into them. Don't let these take over. All the best!
"It's not that I'm an authority on stuff, I just like to think about it" - But doesn't that also gets you smarter every day? :) Love this kind of video. Do more of them.
Really like this style of video, Destin! Kinda' like we're along for the thought process. Like when the truck drove by and you said "Hi" but then went back to the explanation. More of these videos please!!
Sweet! I learned something new today. Nicely done, Destin. I hadn't thought about the mini control surfaces and the smaller amount of torque until you explained it. My thought was the grid fins were just another way of inducing drag at the back of the vehicle to help point the nose where in line with the vehicle's path (prevent the vehicle from tumbling). Yeah, do more videos like this.
I like the short form no edit video style. I am the type of person who enjoys more content rather than a few pieces of high production value content though.
hey Destin! i like this format, smart drops! :) hahahahha by the way, the falcon9 boosters use those fins to land as well, and they come in very hot. The explanation i read was that this was the best design for supersonic and subsonic, they are not the best for any of those situations, but they could do both, kind of like a duck that flies poorly, swims poorly and walks poorly, but it can fly swim and walk hahaha. The alternative would be to create some insanely complicated wing that works different ways in different situations like the concord. Also, both the moab and the rocket are very heavy, what you said about the leverage probably has something to do with that as well! I might be wrong though... :)
I like this format! Keep up the rotation between your deeply researched vids and ones like these, all great stuff. Realizing now that this is the 2nd channel and this vid was published 10 months ago, but high five and VERY interesting stuff - didn't know grid fins were a thing, and definitely didn't know you could just walk up on a MOAB and say what up.
Thank you for your channel and the presentation of interesting subjects with solid, simple scientific principals. School age young people need exposure to this kind of information to spark their passion for discovery and knowledge. Keep up the great work.
I'm not positive, but I think the center of pressure stays behind the center of MASS, not center of gravity... not sure if I'm correct, but center of gravity doesn't seem right for some reason.
I like this video partially because it got a lot of thoughtful/though-provoking information out pretty fast, and it's easy for you to record and upload, so you can make more if you want to without having to devote a lot of time or money to it.
Yo, perfect. I'm looking around to see other videos in the think about it series and I'm see none. I've loved you main channel videos for years and am looking forward to this style. You seem to be able to suit it
YES!! I love this type of video! To me, if I want to see slick editing and music, I'll watch TV. But when I want to learn about stuff, I would much rather see the "just spill your brain out" kind of video, like this one! A HUGE Thumbs Up and Thank You!
Destin you should totally do a video totally dedicated to grid fins and how SpaceX has used them to evolve the falcon 9. I love these kinda videos where you stand somewhere and question things.
i kinda like the edu-vlog style, its a nice little "hm thats neat" moment that you can think about all day. personally i would love to see more of these style, they dont have to be super professional, just a "here's something neat and here's how it works" quick vid.
Destin, I want to give you my thoughts right after watching the video while it's fresh on my mind. I think this video captures the philosophy of what you've been doing with your earlier videos. Short, sweet, enlightening and thought provoking. Your more recent videos are VERY good as well, and there's nothing wrong with them at all, but it's almost in a different genre of videos than they were. On your end it works out well because all you have to do is carry a small go-pro with you, and don't need to edit (perks for years of practice right??). You obviously have a lot going on in your life, so there's another incentive for you to do more of these. You're unashamedly curious so the No-Edit makes it more authentic too....which I think consequently opens people up more to hearing what you have to say. Mistakes, if made, get people thinking and invites them in on the conversation. I'm no expert, just my 2 cents yo! Thanks for sharing and putting in your time!
I love the video, I have one correction to make though: SpaceX has always pointed out that their grid fins work well in hypersonic, supersonic and subsonic flight regimes and that's the reason they're using them on the Falcon 9. The only place they really don't work is at transonic velocities (right around the speed of sound) for the exact reason Destin stated. The airflow is forming a shock wave there because the sound-waves all pile up in front of the fin because of the doppler effect.
My 9 year old daughter said they are like vents when I asked her if she understood how the tilting increased the surface area. Thank you for the videos.
Hey Destin thanks for this quickie, as always, I'm getting smarter everyday! Wow, I didn't know much about these grid fins. I'm kind of intrigued about the physics behind them and their airfoil streamlines as I have only seen them on the Falcon 9 during landing before and now on the MOAB.
thanks to kerbal space program I actually understood this stuff! between you and scott manley, youtube is teaching me a lot about aerodynamics. you should do a collab video with him, I bet you'd get on
Nah, Scott Manley is a pretentious self worshiper that has a deceptive means of doing things which makes him appear more knowledgeable than he actually is. I don't think he has a place on these channels.
I imagine this style of video as something more of a frequent vlog. The "other" videos feel , and are, more prepared so they're different. I like them both (?)
What you missed on is the fact also that after deflection unlike a wing the grid fin is neutral i.e. the aerodynamic forces are summetric so you do not need high torque due to that also. moment arm is short but also the aerodunamic loads are neutral around the pivot point.
All I want is more videos, if it's like this, it works, I love it, learned stuff, if it's like normal, also great, you can go into more depth and talk to experts and stuff, love those too
Maybe not professional enough for your first channel, but it would be a great addition to the second channel though! Really what I had imagined 'Smarter Every Day 2' would provide had I never seen a video of it!
If you ever get a chance to ride a flowrider on a boogie board, you can use the same technique. If you kneel on the board and lift your toes out of the water, you will start to rotate around the vertical axis. As soon as you put your toes back in the water, you will snap back to pointing into the flow. That small surface area of your toes is enough to affect your stability.
I love this style. One thing I would add is that grid fins, even at sub sonic speeds have much higher drag, so despite greater lift (no wing tip vortices) and controllability per surface area, they are not suitable for aircraft that are not already falling from the sky or have power to spare.
I like this walk up and talk about it. "A Walk up"? ANyway, I've seen some saying they need help understanding with visuals and editing, etc. I like that this was short and to the point. I understood what you were saying regarding the surface area being compacted rather than a large wing. But maybe a simplified explanation would help. (Rather than adding editing or images). IN my mind I pictured a division problem. 7(surface area of each square)*42(Squares per panel)*4(Fin panels) = the surface area of the 4 Fins = the surface area of two wings. Just a throw-together formula. Dividing it up as follows: So the area of two wings gets cut up into small bits, and then paste those bits into 4 fins with this pattern. The pattern allows air to go through, but the surface area that is equal to the wings has just as much control as the wings, it just puts them into this smaller panel pattern that make it easier to maneuver. Less Bulky than two large wings. Something like that. Using laymen's terms. Teach us like we're 6th graders. Not dumb... just not familiar with the concise language of Scientific Specialties.
Approach the speed of sound the p-38 had the same issue so they had special flaps at the bottom of the wing to purposely disrupt the airflow around the wing
What! smarter every day 2? I don't know how I missed this. I love this complex physics stuff, I get why the main channel is mostly kid friendly science now but I love some hard core proper physics, like the helicopter deep dive.
This concept being very convenient to you I take that it would mean more content for us... and that is something I can get behind! :P Maybe you could even film and upload directly from your phone.
Sloth FPV amazing doesn't mean good, although it can. i meant, it was a day that captured my focus. i could not believe we dropped it on an isis stronghold. Yea how tragic that was, we killed some of one of the largest radical islamic terrorist groups. Yea how tragic. (sarcasm)
Mr. chair buttons a good point on the use of amazing, the last part, not so much. We all know our militaries have pretended to bomb "isis" but actually hospitals and civilian filled cities. Have you got first hand proof that it really was an isis stronghold?
Thank you so much for the info. I've been watching most of the SpaceX landing tests and I'd always wonder how those grid fins worked but I was too lazy to google it.
I really appreciate seeing how your thought process works. Spacex uses their gridfins at very high speeds, I think, but it seems that even absent the control with the supersonic shock preventing the through airflow, they still likley create enough drag to maintain the engine first attitude. But I'm guessing.
I like this style of video but also the "look and think". I use the same approach with young engineers in 'Bama. Sometimes it's just helpful to watch a process and "think about it".
Finally understood how those things work!! Seeing them on Falcon 9, I though "how do those create drag, if it's just a grid?" It doesn't create drag, it creates a torquing vector! Thanks a lot!
There's been something missing in the last couple main videos which was hard to describe. This video is it. More of this!!
What exactly was missing? I'm not really clear on what you're saying.
I know you said unedited... but if you could have added a short clip of one in a air tunnel to show the bubble you were talking about ether cg or real like a 5 second clip to show what you meant..... not all of us are rocket scientist lol.. we need a little aid to get your point
or even a picture there are some good pictures I found on Google that show what you are talking about
Nothing lacking in this video. But the main videos of late were more of a demonstration of "look at this cool stuff". Your older videos were more like "let's learn how this cool stuff works".
Exactly this! "But the main videos of late were more of a demonstration of "look at this cool stuff". Your older videos were more like "let's learn how this cool stuff works"."
I love these type of videos but I think that this content is better suited for this channel rather than the main channel. I'm not quite able to put the reason of why into words though.
I agree, I like this style along with the edited. This style is better for the 2nd channel as it's more informal. The more formal, professional style works better for the fist channel. It helps us know what to expect and people will have differing opinions on the two styles so they can subscribe to both or the one they like better.
Yeah, reminds me of the "go for a walk" videos on Veritasium 2, and how it felt weird when he started uploading them on his main channel.
soccerde8 I agreee with your original comment here and personally to me knowledge is knowledge no matter the format☺
#1 - I do like this style of video
#2 - I love how curious you are, and how you like to figure things out. Your willingness to put effort in to doing that is beautiful. Anyway, at 1:05 we catch a glimpse of a whole other topic grabbing your curiousity for a moment before you force yourself back in to your intended topic - fantastic. Thanks for asking questions, and sharing your process of answering them.
#3 - Naming this style: Smarter Moments?
From what I've read, it's only transonic speeds that grid fins have difficulty with. Once you go supersonic, the shock waves quickly angle back until they aren't impinging on the neighboring grids and the fin starts operating normally. I know that SpaceX has said that their grid fins sork find in subsonic and supersonic regimes and that at transsonic, the command authority reverses for a bit since the grid fin acts like a flat fin perpendicular to the airflow.
Yeah, I've heard that SpaceX's grid fins are more effective at supersonic than subsonic. And thinking about it, increased drag of the design is also maybe desirable when you're trying to fall gracefully.
+
Correct. When he's talking about a "bubble" in front of the fin, he means a bow shock. But when the Mach number is high enough, the holes in the fins "swallow" the shock (overspeeding), resulting in a bunch of oblique shocks with correspondingly lower drag and better control authority.
DKM101 well keep in mind, too that the air is thinner where SpaceX starts using grid fins, and it actually slows itself down to subsonic speeds too, so SpX really has nominal use of grid fins all the way down(I assume. IANA Rocket Scientist)
I'd assume the fins are only used during the landing. Space rockets 🚀 don't look like this
THIS! This video is what people should be doing all over the place - thinking about things and the whys and hows of things. If I were a science teacher, I'd have all my students turn in stuff like this: get your cellphone, walk up to something and explain it on camera.
you are my favorite engineer! my girlfriend and i have bought your shirt and posters, even got my brother to buy your shirts. God bless you bro and i admire you in many ways. Thanks for this upload. It is inspiring to have you talk about random things and not worry about editing and waiting to post. once again Thanks for sharing your knowledge with us!
It's !always! great to listen to you, but your regular videos are simply superior. It shows how much work you put into them. Don't let these take over.
All the best!
"It's not that I'm an authority on stuff, I just like to think about it" - But doesn't that also gets you smarter every day? :)
Love this kind of video. Do more of them.
I like this type of video as well as your regular style. Every video you make teaches me something.
Really like this style of video, Destin! Kinda' like we're along for the thought process. Like when the truck drove by and you said "Hi" but then went back to the explanation. More of these videos please!!
Destin, I like this style of video for this channel. It's easier/ faster for you to produce, and I still learn a thing or two. That's a win-win.
This is probably my favorite video on this channel. I love the impromptu style of it.
Sweet! I learned something new today. Nicely done, Destin.
I hadn't thought about the mini control surfaces and the smaller amount of torque until you explained it. My thought was the grid fins were just another way of inducing drag at the back of the vehicle to help point the nose where in line with the vehicle's path (prevent the vehicle from tumbling).
Yeah, do more videos like this.
I like the short form no edit video style. I am the type of person who enjoys more content rather than a few pieces of high production value content though.
I, for one, love this style of video. It feels more personal, like the host is talking _with_ me rather than _at_ me. I'd like to see more of these.
hey Destin! i like this format, smart drops! :) hahahahha by the way, the falcon9 boosters use those fins to land as well, and they come in very hot. The explanation i read was that this was the best design for supersonic and subsonic, they are not the best for any of those situations, but they could do both, kind of like a duck that flies poorly, swims poorly and walks poorly, but it can fly swim and walk hahaha. The alternative would be to create some insanely complicated wing that works different ways in different situations like the concord. Also, both the moab and the rocket are very heavy, what you said about the leverage probably has something to do with that as well! I might be wrong though... :)
I like this format! Keep up the rotation between your deeply researched vids and ones like these, all great stuff. Realizing now that this is the 2nd channel and this vid was published 10 months ago, but high five and VERY interesting stuff - didn't know grid fins were a thing, and definitely didn't know you could just walk up on a MOAB and say what up.
I like this style of video, keep up the great work man!
Thank you for your channel and the presentation of interesting subjects with solid, simple scientific principals. School age young people need exposure to this kind of information to spark their passion for discovery and knowledge. Keep up the great work.
I'm not positive, but I think the center of pressure stays behind the center of MASS, not center of gravity... not sure if I'm correct, but center of gravity doesn't seem right for some reason.
It is cool to see UA-camrs interacting with each other. I watch both channels
C.G is the correct term, widely used in aerodynamics bibliography
I like this video partially because it got a lot of thoughtful/though-provoking information out pretty fast, and it's easy for you to record and upload, so you can make more if you want to without having to devote a lot of time or money to it.
Wow, I learn something new in everyone of your videos. I like every style of video you have done, so your choice.
Yo, perfect. I'm looking around to see other videos in the think about it series and I'm see none. I've loved you main channel videos for years and am looking forward to this style. You seem to be able to suit it
YES!! I love this type of video! To me, if I want to see slick editing and music, I'll watch TV. But when I want to learn about stuff, I would much rather see the "just spill your brain out" kind of video, like this one! A HUGE Thumbs Up and Thank You!
I'm really liking this format, it's fun to hear you think about things. Thanks for sharing!
Destin you should totally do a video totally dedicated to grid fins and how SpaceX has used them to evolve the falcon 9. I love these kinda videos where you stand somewhere and question things.
i kinda like the edu-vlog style, its a nice little "hm thats neat" moment that you can think about all day.
personally i would love to see more of these style, they dont have to be super professional, just a "here's something neat and here's how it works" quick vid.
First, thank you for another awesome video. Second, YES! Bring on more walk up on something and discuss the science and/or engineering behind them!
Yes. This. More of this. PLEASE. And I have been wanting to understand these things for a long time now, so thank you for explaining.
I like this walk up and think about things format, it's an interesting take on your thought process!
Destin, I want to give you my thoughts right after watching the video while it's fresh on my mind. I think this video captures the philosophy of what you've been doing with your earlier videos. Short, sweet, enlightening and thought provoking. Your more recent videos are VERY good as well, and there's nothing wrong with them at all, but it's almost in a different genre of videos than they were.
On your end it works out well because all you have to do is carry a small go-pro with you, and don't need to edit (perks for years of practice right??). You obviously have a lot going on in your life, so there's another incentive for you to do more of these. You're unashamedly curious so the No-Edit makes it more authentic too....which I think consequently opens people up more to hearing what you have to say. Mistakes, if made, get people thinking and invites them in on the conversation.
I'm no expert, just my 2 cents yo! Thanks for sharing and putting in your time!
I like this style of video. Especially if it means more of them.
Makes my think about the maneuverability of a biplane vs a single wing. Love this style of video.
Love it dude. Great video concept for those of us who get caught up by "how it works" stuff being our "ooh shiny things".
Wow, that was really well put together. If you'd told me you had a script and this was take #5 I would have believed that, too!
Long time watcher, first time commenting on SED. Great video Destin, love the format and content.
I love the video, I have one correction to make though: SpaceX has always pointed out that their grid fins work well in hypersonic, supersonic and subsonic flight regimes and that's the reason they're using them on the Falcon 9. The only place they really don't work is at transonic velocities (right around the speed of sound) for the exact reason Destin stated. The airflow is forming a shock wave there because the sound-waves all pile up in front of the fin because of the doppler effect.
+
Just watched the space x launch and saw stage 1 burn and grid fins. I learned about grid fins on here from you. Thanks Destin.
Ok as you started explaining my mind had that moment of understanding. This is a great video I'd enjoy more of these style videos.
My 9 year old daughter said they are like vents when I asked her if she understood how the tilting increased the surface area. Thank you for the videos.
I like all of your videos, so keep them coming how ever you wish to make them.
I learned something new again. Big fan of yours. This style is great!
Hey Destin thanks for this quickie, as always, I'm getting smarter everyday! Wow, I didn't know much about these grid fins. I'm kind of intrigued about the physics behind them and their airfoil streamlines as I have only seen them on the Falcon 9 during landing before and now on the MOAB.
thanks to kerbal space program I actually understood this stuff!
between you and scott manley, youtube is teaching me a lot about aerodynamics. you should do a collab video with him, I bet you'd get on
Fly safe
noooo jeb ... RIP you were a good kerbal
Nah, Scott Manley is a pretentious self worshiper that has a deceptive means of doing things which makes him appear more knowledgeable than he actually is. I don't think he has a place on these channels.
Atlas WalkedAway
but he does share knowledge i didnt have before.
sooooooo....
Atlas WalkedAway ooh i see ill check it out of its true ill unsub him
I imagine this style of video as something more of a frequent vlog. The "other" videos feel , and are, more prepared so they're different. I like them both (?)
What you missed on is the fact also that after deflection unlike a wing the grid fin is neutral i.e. the aerodynamic forces are summetric so you do not need high torque due to that also. moment arm is short but also the aerodunamic loads are neutral around the pivot point.
Love these types of videos, Destin! More stuff to think about would be great.
Time to go read up on grid fins. :^)
Love this! You have so much of value to share. Keep up the GREAT work!
I never saw grid fins before. This was very interesting and great explanation about surface are and transonic and supersonic effects. Thank you!
All I want is more videos, if it's like this, it works, I love it, learned stuff, if it's like normal, also great, you can go into more depth and talk to experts and stuff, love those too
I like it! it gives us little episodes while waiting for the big production ones that take forever... should make it a weekly thing ;)
Thanks for explaining these grid fins. Since I saw this video I've been seeing them everywhere, specifically with SpaceX prototypes.
Back to grassroots! I like it. Feels like walking along with my Dad and he would just point out cool stuff to talk about. Nice, thanks!
Love this style! Keep up the solid work! Love your channels and podcast! Maybe someday I’ll be able to come down for one of your meet ups.
Great video! Absolutely great to watch and learn. I'd happily watch a dozen more like these! :)
I like this style! I empathize with your immediate curiosity or fascination.
Nice video, Talked all 'bout moment arms this year while my class is building an airplane :) hopefully the struts don't break.
Hey Destin definite thumbs up from me for this format, keep up the good work 👍
This was REALLY cool. I would LOVE to have more of these quick SmarterEveryMinute videos!
as an aerospace engineering student thus video is awesome! I'd love to see more like it
Very nice format. I like it! Keep it short as this one if possible, if not I'll watch it anyway! Great information btw
Maybe not professional enough for your first channel, but it would be a great addition to the second channel though! Really what I had imagined 'Smarter Every Day 2' would provide had I never seen a video of it!
loved it. loved the style and everything about this video
Please do more things like this! I know it's close to what you actually do as a engineer. I can feel it.
Like the video and the inspiration behind the video.
Something that catches your attention and drives you to share to and with others.
If you ever get a chance to ride a flowrider on a boogie board, you can use the same technique. If you kneel on the board and lift your toes out of the water, you will start to rotate around the vertical axis. As soon as you put your toes back in the water, you will snap back to pointing into the flow. That small surface area of your toes is enough to affect your stability.
Fluids are the best! I would be entertained just watching you mess around with the Navier -Stokes equation for a while.
Great job, Destin. I love these quick and dirty videos!
We love your random thoughts. Your mundane thoughts are often interesting to me.
Very good, Destin, I now know about potato mashers. I like the casual style of video!
Loved this video! Please make this a regular style for your channel :)
I love this style. One thing I would add is that grid fins, even at sub sonic speeds have much higher drag, so despite greater lift (no wing tip vortices) and controllability per surface area, they are not suitable for aircraft that are not already falling from the sky or have power to spare.
I like this style of video Destin, short and sweet.
I like this walk up and talk about it. "A Walk up"?
ANyway, I've seen some saying they need help understanding with visuals and editing, etc. I like that this was short and to the point. I understood what you were saying regarding the surface area being compacted rather than a large wing. But maybe a simplified explanation would help. (Rather than adding editing or images).
IN my mind I pictured a division problem. 7(surface area of each square)*42(Squares per panel)*4(Fin panels) = the surface area of the 4 Fins = the surface area of two wings. Just a throw-together formula. Dividing it up as follows:
So the area of two wings gets cut up into small bits, and then paste those bits into 4 fins with this pattern. The pattern allows air to go through, but the surface area that is equal to the wings has just as much control as the wings, it just puts them into this smaller panel pattern that make it easier to maneuver. Less Bulky than two large wings.
Something like that. Using laymen's terms. Teach us like we're 6th graders. Not dumb... just not familiar with the concise language of Scientific Specialties.
That was cool, and informative. Once again, Well played sir, Well played.
It was a good format, very real, nice and concise.
Hellow Destin.
I am inspired by your videos.
Thanks for your such effort.
And obviously I liked this style
Approach the speed of sound the p-38 had the same issue so they had special flaps at the bottom of the wing to purposely disrupt the airflow around the wing
Destin, I like Every video you make. All of them.
If you made more of these walk up and think about it videos, I'd watch them.
What! smarter every day 2? I don't know how I missed this. I love this complex physics stuff, I get why the main channel is mostly kid friendly science now but I love some hard core proper physics, like the helicopter deep dive.
"Quick Thoughts" or "Off the Cuff" sub 5 min video like this is great for those in between moments.
I love the walk up and think about things video style!!
This concept being very convenient to you I take that it would mean more content for us... and that is something I can get behind! :P Maybe you could even film and upload directly from your phone.
Thank you for sharingW Saw these grid-fins on the latest SpaceX stage 1 landing and was curious about how they are an improvement on regular wings.
Grid fins can be designed to work supersonic and trans-sonic. Look at the ones on the falcon 9 booster....
Revisited this video after the MOAB was dropped
Jon Lopez what an amazing day that was
Mr. chair buttons *tragic
Sloth FPV amazing doesn't mean good, although it can. i meant, it was a day that captured my focus. i could not believe we dropped it on an isis stronghold. Yea how tragic that was, we killed some of one of the largest radical islamic terrorist groups. Yea how tragic. (sarcasm)
Mr. chair buttons a good point on the use of amazing, the last part, not so much. We all know our militaries have pretended to bomb "isis" but actually hospitals and civilian filled cities. Have you got first hand proof that it really was an isis stronghold?
Sloth FPV do you have proof that it was not?
I love any video you out out Dustin, very cool!
I like this style video. It's kinda how I like to learn. Call it random stuff about random stuff.
Thank you so much for the info. I've been watching most of the SpaceX landing tests and I'd always wonder how those grid fins worked but I was too lazy to google it.
I really appreciate seeing how your thought process works.
Spacex uses their gridfins at very high speeds, I think, but it seems that even absent the control with the supersonic shock preventing the through airflow, they still likley create enough drag to maintain the engine first attitude. But I'm guessing.
I like all your videos with your opinions and hypotheses...
Love the new style! keep it going!
please go into more detail on the moab, it's such an awesome mechanical contraption
I like this style of video but also the "look and think". I use the same approach with young engineers in 'Bama. Sometimes it's just helpful to watch a process and "think about it".
Oh my god.. I stood right where you did while visiting some family! I almost feel smarter just knowing I stood where you did!
I really liked this video. It is what UA-cam is all about.
Grid fins are used on the falcon 9 during it's reentry. Outside of that, I had no clue other companies used grid fins. Pretty cool :)
I like that it's very natural, it speak to me in a different way.