If N-S/EW method is more than actual air distance,it's ok, more conservative for fuel mgmt, 3%cont. Thanks for your easy to understand method, truly a maths genius
Been experimenting with lat longs and calculating distance in excel but I actually wanted to understand the formulas involved. This video was PERFECT! Thank you
interesting. Each degree is 60 nautical miles. Therefore 60x120.228 = 7213.68 nm. Converting nm to km = 13359.74 km. A bit closer to the real answer. Your final equation is the same to calculate the angle of a celestial object at a specific location and time. I've been learning celestial navigation formulas the past week so searching came across your video. Nicely explained.
The radius of the earth measures the distance from the top most layer of the sky to the center of the earth. The distance from the ground to space is 100 km so you ought to subtract that from the radius of the earth when measuring the distance between coordinates, right?
Wow....It's been hell of ride since all these years .....Almost ten years...Have seen lots of S curves with him....😇😇😇our little classified secrets....😘😘😘
How do you calculate cos 107°? it give me a negative result of course. I have learned with positive numbers (so FAJS would be +26°) i get: d= 0.298 + (0.657 x -0.29) wich gave me 0.107 cos-1 0.107 is 83.85 83.85 x 60 gave me 5031nm 5031nm x 1.852= 9318km it is wrong and i don't know why.
I know that this video is 5 years old yet still: With the central subtended angle method, you are calculating alpha (at ~12:00). If I type in the excat same calculation into my calculator with the exact same numbers, I get 1.0405371666633325 instead of 120.228 which means everything from there on just gives me incorrect results. Why do I get a different result on that term if I do everything just like you do?
I believe the input has to be in radians. Change your calculator from degrees into radians and you should be able to get the correct answer. I had the same result as you and changing the mode resulted in the correct answer.
+Menno Jacobs Ik vond het inderdaad ook een goede uitleg, meneer Jacobs. Could you explain what the difference is between using the formula explained in the video and the haversine formula? Thank you in advance! Future engineering student.
Of course it couldn't be intuitive and use Φ for longitude and Θ for latitude. Phi and Theta are near enough pictograms of longitude and latitude, respectively! Screw the convention, I'm using them like that.
That is merely one convention. East longitude is positive, west longitude is negative. Similarly, north latitude is positive and south latitude is negative.
This is how you get people to believe in a spherical earth. Put up lots of math and equations explaining nothing. Theory and speculation with "math" earth is a fixed stationary plane
This is just flat wrong. Take a piece of yarn and a globe and you will see that international flight routes do not make any sense. The string on a globe will be LONGER following the known routes. It does work on a flat earth map.
The best explanation ever given on great circle Distance
This video is amazing!! After researching for more than 3 hours, this is the first time I actually understand the topic. Thank you so much :)
1 of the rare videos explaining a confusing concept. Thanks for the effort mate.
If N-S/EW method is more than actual air distance,it's ok, more conservative for fuel mgmt, 3%cont.
Thanks for your easy to understand method, truly a maths genius
Been experimenting with lat longs and calculating distance in excel but I actually wanted to understand the formulas involved. This video was PERFECT! Thank you
Thank you so much for uploading this videos...it is actually a great help for me for my math SL exploration project...once again thank you soo much...
yess, im also doing my math SL exploration on the haversine formula atm
Thank you for this I need to turn this into a Python function and your explanation was so clear it set everything straight in my head
I also watched the video for the same purpose..Could you pls share your python code? (2019CH04574@wilp.bits-pilani.ac.in)
Just helped me while being on search for this for like over an hour !!!
Good work explaining the concepts. I needed a refresher re ship travel.
interesting. Each degree is 60 nautical miles. Therefore 60x120.228 = 7213.68 nm. Converting nm to km = 13359.74 km. A bit closer to the real answer. Your final equation is the same to calculate the angle of a celestial object at a specific location and time. I've been learning celestial navigation formulas the past week so searching came across your video. Nicely explained.
The radius of the earth measures the distance from the top most layer of the sky to the center of the earth. The distance from the ground to space is 100 km so you ought to subtract that from the radius of the earth when measuring the distance between coordinates, right?
Awesome and fantastic explained
Hi, how do you calculate the +43.677 and the -79. 630? I cant seem to figure it out thanks
Wow....It's been hell of ride since all these years .....Almost ten years...Have seen lots of S curves with him....😇😇😇our little classified secrets....😘😘😘
Thanks for this video. Helped me visualize it.
How do you calculate cos 107°? it give me a negative result of course.
I have learned with positive numbers (so FAJS would be +26°)
i get: d= 0.298 + (0.657 x -0.29) wich gave me 0.107
cos-1 0.107 is 83.85
83.85 x 60 gave me 5031nm
5031nm x 1.852= 9318km
it is wrong and i don't know why.
very good explanation for my Math IA
is the first method also known as a rhumb line ??
I know that this video is 5 years old yet still:
With the central subtended angle method, you are calculating alpha (at ~12:00).
If I type in the excat same calculation into my calculator with the exact same numbers, I get 1.0405371666633325 instead of 120.228 which means everything from there on just gives me incorrect results.
Why do I get a different result on that term if I do everything just like you do?
I believe the input has to be in radians. Change your calculator from degrees into radians and you should be able to get the correct answer. I had the same result as you and changing the mode resulted in the correct answer.
Hello ! Very usefull video but could you show all sin cos and arcsim calculations more presisely ?
Merci from France !
I like the Haversine formula myself.
Gracias amigo saludos desde Ecuador
Thanks a lot, well explained and made complete sense.
Thanks for the helpful video!
Thanks for THis I need it now i found a solution for my project :)
really good video. really very helpful, thanks a lot :) cheers
really great toutorial thanks
Thank you so much for uploading this! Keep it going!
As a teacher at the nautical acadamy I'd like to use this video in my lessons.
(It's thát good)
Is that OK with you?
+Menno Jacobs
Please go ahead and do so. I'm glad you found it useful!
Which academy is this btw?
It's the Nautical college in The Netherlands
+Menno Jacobs Ik vond het inderdaad ook een goede uitleg, meneer Jacobs.
Could you explain what the difference is between using the formula explained in the video and the haversine formula? Thank you in advance! Future engineering student.
Thanks great explaination
Nice video sir
Off by about 900 km, but I forgive you cause you're trying to explain a lot in a short time and this number doesn't matter 😉
Well done. I enjoyed it.
thanks for the upload man really helpful
alpha is 1.1431 (rad). Convert to degree = 1.1431 * 180 / 3.1415 = 65.496 (degree). Why is 120.228 degree?
Of course it couldn't be intuitive and use Φ for longitude and Θ for latitude. Phi and Theta are near enough pictograms of longitude and latitude, respectively! Screw the convention, I'm using them like that.
can someone tell me how to derive the central subtended angle formula? the one to get angle alpha in the second method
Why we took the longitude difference instead of the latitude ?
Very helpful....thank you!
hi i wanted to ask that why did you write West and South co ordinates in negative?
will greatly appreciate a response
That is merely one convention. East longitude is positive, west longitude is negative. Similarly, north latitude is positive and south latitude is negative.
Thank you SO MUCH!!!!
Thanks, it was simple and ...gives more leverage to the flat earth
more leverage to the flat earth? How so? It appears to contradict the FE.
_.gives more leverage to the flat earth_
omg what a moron
What an idiot joke..
very helpful and thanx a lot
what is a rhumb line?
It's any course that maintains the same heading thusly cutting every meridian at the same angle.
How would you calculate the distance from Toronto to Johannesburg without using the assumption that the earth is a globe?
Oh look, a mindless flattard who doesn't understand the implications that his stupid belief has for distances that are in fact verifiable.
Thank you very much
so the "equator is flatter than the rest of the earth"? because the "earth is not a perfect sphere" ok. makes perfect since
great!!!!!!!!!!!!!!
i liked this video to get the likes to number "666"
who's here from professor fink's class
This is how you get people to believe in a spherical earth. Put up lots of math and equations explaining nothing. Theory and speculation with "math" earth is a fixed stationary plane
Sorry, but this is how navigation of airplane and ship works. Remain in your flatardia
*This is how you get people to believe in a spherical earth*
No need for belief here, as it works... always when navigating;)
*Theory and speculation with "math" earth is a fixed stationary plane*
Math is like cancer to flattards like you.
So your saying the earth is flat?
no dumb fuck
_So your saying the earth is flat?_ from which hole do you come crawling
This is just flat wrong. Take a piece of yarn and a globe and you will see that international flight routes do not make any sense. The string on a globe will be LONGER following the known routes. It does work on a flat earth map.
SYAS SYAS I'm not sure what you're trying to say here.
Great circle calculations are for distances over 600 miles . . . your yarn is not 600 miles long therefore your analogy is invalid
There is no any flat earth map...lol
Sorry but according to NASA earth is a perfect sphere so all these calculations fall FLAT!
Nope. I'm sure you are a troll - or maybe not - but in both cases you are completely ignorant and stupid.
you should watch these videos th-cam.com/video/JgY8zNZ35uw/w-d-xo.html then you might see how stupid flat earth really is
Flat Earth, Banjo, USA, Japan and Brazil if you have kids, i feel sorry for them lol
NASA never said the earth was a perfect sphere.
thank you very much