- Видео 63
- Просмотров 6 693
James Hardaker
Добавлен 18 фев 2011
This is an educational channel for people wanting to learn more about orbital mechanics and other fun engineering concepts.
Let me know if there is anything you would like me to cover and I will try my best.
Ask me anything
Let me know if there is anything you would like me to cover and I will try my best.
Ask me anything
Problem 3.8-3.9. Orbital Mechanics for Engineering Students
Problem 3.8-3.9. Orbital Mechanics for Engineering Students by Howard D Curtis. 4th Edition.
Просмотров: 25
Видео
Problem 3.5-3.7. Orbital Mechanics for Engineereing Students
Просмотров 2816 часов назад
Problem 3.5-3.7. Orbital Mechanics for Engineereing Students by Howard D Curtis. 4th Edition problem 3.6 e = 0.3; theta= pi/2; Me = 2*atan(sqrt((1-e)/(1 e))*tan(theta/2)) - (e*sqrt(1-e^2)*sin(theta))/(1 e*cos(theta)) factor = Me / (2*pi) %t=0.1560T problem 3.7 e = 0.5; theta= acos((e-1)/(2*e)); Me = 2*atan(sqrt((1-e)/(1 e))*tan(theta/2)) - (e*sqrt(1-e^2)*sin(theta))/(1 e*cos(theta)) factor = Me...
Problem 3.4. Orbital Mechanics for Engineering Students
Просмотров 23День назад
Problem 3.4. Orbital Mechanics for Engineering Students by Howard D Curtis
Elliptical orbits as a function of time. Orbital Mechanics for Engineering Students
Просмотров 7514 дней назад
Elliptical orbits as function of time. Orbital Mechanics for Engineering Students by Howard D Curtis 4th edition. Referencing page 143 in the book.
Problem 3.2 & 3.3. Newton and bisection method. Orbital Mechanics for Engineering Students.
Просмотров 35Месяц назад
Problem 3.2. Newton and bisection method. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition ive replaced the less than and greater than symbols with text fixed a bug at nm_rec(x,y,ratio/2); x1,y1 becomes x,y function x = bisect_method(fx,ax,cx) error = 0.00001; function x = bm_rec(ax,cx) bx = (ax cx)/2; cy = fx(cx); by = fx(bx); if abs(by) LT error x = bx; elseif abs(bx ...
Prusa Mk4 Build Part 2 (completed). Newbie timelapse
Просмотров 2982 месяца назад
There is a dent in my steel sheet. Im pretty certain I didn't cause it because it was in my bubble wrap from the start. Customer service are being difficult with me regarding a replacement. They say if it doesnt affect print quality they wont replace it. What are your thoughts?
Problem 3.1. Orbital Mechanics for Engineering Students.
Просмотров 322 месяца назад
Problem 3.1. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition. Oh bugger, I left in x/2 at the end. Should just be x. Sorry!
Problem 2.47. Earth-moon transfer to Lagrange 4 via L3. Orbital Mechanics for Engineering Students
Просмотров 522 месяца назад
Earth-moon transfer to Lagrange point 4 via L3. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition. After making this video I went back and worked out a direct transfer from earth to L4. It took me a while to get intuition for the behaviour of the orbit with respect to the different starting conditions. This will come in handy If you ever need to go to L4 via L3 on your h...
Prusa Mk4 Build Part 1. Sloppy newbie timelapse
Просмотров 1292 месяца назад
Intro: ruclips.net/video/h7T8v_RpXyE/видео.html
Prusa MK4 Build Intro / Unboxing
Просмотров 212 месяца назад
Part 1 timelapse: ruclips.net/video/_SZwvk1gnqQ/видео.html
Lagrange points in circular restricted 3 body problem. Orbital Mechanics for Engineering Students
Просмотров 282 месяца назад
Lagrange points in circular restricted 3 body problem. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition matlab demo m1 = 5.974e24;rth m2 = 7.348e22;%moon r12 = 3.844e5;%distance between earth and moon Pi2 = m2 / (m1 m2) l45x = r12 / 2 - Pi2 * r12 l45y = sqrt(3)/2*r12 L4 = [l45x l45y] L5 = [l45x -l45y] l4 = norm(L4) l5 = norm(L5) xL2 = bisect(@funx,1.0,1.4)* r12 xL1 = bis...
Circular Restricted 3 Body Problem. Orbital Mechanics for Engineering Students
Просмотров 352 месяца назад
Circular Restricted 3 Body Problem. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition. Relative Velocity and Acceleration: ruclips.net/video/gNFTSNHCEgs/видео.html The terms at the end should be Negative, sad mistake by me. I couldnt continue without them being negative.
Problems 2.43 & 2.44. Orbital Mechanics for Engineering Students
Просмотров 372 месяца назад
Problems 2.43-2.45. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition 2.43 At a given instant, a spacecraft has the position and velocity vectors r0 = 7000^i km and v0 =7i 7j km/s relative to an earth-centered nonrotating frame. (a) What is the position vector after the true anomaly increases by 90°? (b) What is the true anomaly of the initial point? 2.44 Relative to an ...
Lagrange Coefficients. Orbital Mechanics for Engineering Students
Просмотров 592 месяца назад
Lagrange Coefficients. Orbital Mechanics for Engineering Students by Howard D Curtis 4th Edition. Perifocal Frame: ruclips.net/video/kxGZ29Z8YE4/видео.html
Perifocal Frame. Orbital Mechanics for Engineering Students
Просмотров 512 месяца назад
Perifocal Frame. Orbital Mechanics for Engineering Students
Problem 2.42. Orbital Mechanics for Engineering Students.
Просмотров 92 месяца назад
Problem 2.42. Orbital Mechanics for Engineering Students.
Problem 2.41. Orbital Mechanics for Engineering Students
Просмотров 282 месяца назад
Problem 2.41. Orbital Mechanics for Engineering Students
Problem 2.39 and 2.40. Orbital Mechanics for Engineering Students.
Просмотров 552 месяца назад
Problem 2.39 and 2.40. Orbital Mechanics for Engineering Students.
Problem 2.38. Orbital Mechanics for Engineering Students.
Просмотров 372 месяца назад
Problem 2.38. Orbital Mechanics for Engineering Students.
Problem 2.37. Orbital Mechanics for Engineering Students.
Просмотров 852 месяца назад
Problem 2.37. Orbital Mechanics for Engineering Students.
Problem 2.36. Orbital Mechanics for Engineering Students.
Просмотров 452 месяца назад
Problem 2.36. Orbital Mechanics for Engineering Students.
Hyperbolic trajectories. Orbital Mechanics for Engineering Students
Просмотров 1063 месяца назад
Hyperbolic trajectories. Orbital Mechanics for Engineering Students
OWON HDS272S. Hardware/software features and demonstration.
Просмотров 1,4 тыс.3 месяца назад
OWON HDS272S. Hardware/software features and demonstration.
Problems 2.34 and 2.35. Orbital Mechanics for Engineering Students
Просмотров 763 месяца назад
Problems 2.34 and 2.35. Orbital Mechanics for Engineering Students
Parabolic trajectories. Orbital Mechanics for Engineering Students.
Просмотров 1163 месяца назад
Parabolic trajectories. Orbital Mechanics for Engineering Students.
NASA GMAT R2022a Windows Setup (from source) Guide (Incomplete)
Просмотров 1373 месяца назад
NASA GMAT R2022a Windows Setup (from source) Guide (Incomplete)
Problems 2.30-2.33. Orbital Mechanics for Engineering Students
Просмотров 443 месяца назад
Problems 2.30-2.33. Orbital Mechanics for Engineering Students
Problem 2.29. Orbital Mechanics for Engineering Students.
Просмотров 333 месяца назад
Problem 2.29. Orbital Mechanics for Engineering Students.
Problem 2.25-2.28. Orbital Mechanics for Engineering Students.
Просмотров 283 месяца назад
Problem 2.25-2.28. Orbital Mechanics for Engineering Students.
Problem 2.24. Orbital Mechanics for Engineering Students.
Просмотров 213 месяца назад
Problem 2.24. Orbital Mechanics for Engineering Students.
Hey man, this is very helpful so thank you for making these! but I am looking for example 2.8 (Page 89 - revised 4th edition) and I cannot seem to find your video on it. The excercise involves a geocentric orbit with only two altitude points and theta parameters given. Many thanks!
No problem. It's inside 2.7-2.9. ruclips.net/video/j44YtjqFxK4/видео.htmlsi=A1FaRZKT-qTMuczy
Sry, u are referring to the example, not the problem? Sorry I haven't made a video for that example. I will try to do it ASAP but I'm pretty busy for the next 2 weekends. What are you having a problem with?
@@JamesHardaker ah okay I see, no worries tho as problem 2.29 is very similar so that will work, thank you!
Was the nanos onboard WIFI too slow?
Yes, for these tiny packets the overhead of the api/stream was too much. There was always at least 200 ms delay. I tried udp and Bluetooth and I didn't use the arduino wrapper classes so there was no boiler plate code getting in the way, still no joy. The radio transceiver delay is 15ms. I had time left to do the noise filter
It is good for a student since you don't have to invest in a bench scope. It covers all the frequencies from audio to the top of the amateur band at 10 meters. A rule of thumb is to purchase a scope that is 2X the frequency that you will use it at. That is why the 100 MHz is popular, especially with the amateur radio community.
Nice! I have 3 3D printers now...best thing I ever bought!
sir, your videos so helpful. please continue with other chapters
Thank you so much. I will try to get through the whole book but I'm learning it as I go and with a full time job and uni part time it's going to take me a bit longer to get through chapter 3. I had quite a bit of free time over the summer between jobs.
@@JamesHardaker good luck :) can I access your e-mail adress?
Why did you substitute E for AxB?
Sorry, that was a mistake. I left a mention in the description
Does it make sense now? Thanks for watching
I left in x/2 at the end. Should just be x. Sorry!
How many angles came to the right to solve
Im sorry. I don't understand your question
Bro, this is a few yrs old already. Might be out o production until you bought it 🙂
No way
wow! Really well done sir! That's a great project and really shows the power of these microprocessors. Thanks for posting this.
Let's see it working! Looks very cool!
Kk, I'll do a demonstration this weekend
Thank youuuuuu
No problem. You are my first comment on these videos. I've just gone on holiday for a week so won't be doing any more until after that.
@@JamesHardaker i have exam next week on space mechanics and spacecraft dyanmic and control which uses this book
@sarahain7612 I haven't finished chapter 2, so check me for mistakes, I've made a few already. Good luck
how am I just finding this?! I've been arguing for years that this needs to become a thing. Its basically a "half step to vr", and would open up a lot more design space for innovation in flat gaming.
It's a game changer for steam controller supported games :D Think that this will be implemented to cod or bf and lean with it. Dope feature :D
Any updates to this amazing mod? :D
I think quake2 vr mod surpasses this. Not sure I even have the source code for this anymore.
@@JamesHardaker Ehh... I really wanna play quake2 on my steam controller with this mod :/
For future reference, this is often referred to as "decoupled aiming," or decoupled look/aim.
i though so but I prefer to keep things simple, show rather than tell.
Reminds me of the Quake Wii homebrew port which also had offcenter aiming
This is amazing. Please upload your mod!
Thank you, I'll sort something out. It has to run as "Spacewar" under steam to get the controller input (since I dont have a registered steam game to my name) but ill add the steps to sort that out when i'm done