Mapwork magnetic declination and bearing calculations
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- Опубліковано 17 тра 2017
- How to do magnetic declination and magnetic bearing calculations. Feel free to watch my other mapping videos. I trust that these will help!
My video on the three different Norths - True North, Magnetic North and Grid North: • True North, Magnetic N...
Full mapwork playlist: • Geography mapwork / ma...
Who else is learning the day before the exam? 💔
me
No cap🤣
This is the first time learning this and i am writing tomorrow
I'm not learning the day before exam
Instead, I'm learning 3 hours before the Exam
Meee
Why is this man such a legend?!?!?
South Africa for the bois
Wow thank you - didn’t do geography in high school and now I’m trying to do it in uni and am totally lost and you are really helping me
You're welcome, all of the best with the studies!
You are better than any geo teacher I have had😁
Thanks for the feedback 😁 All of the best with the studies!
teacher recommended this channel to us in class!
just want to say THANK YOU!!! The info that 60' is equal to 1 degree has saved me! Excellent explanation. Keep up the great videos.
Thanks for the feedback, and all of the best with the studies!
Its so helpful! I'm writing a test today,surely I'll pass because of you. THANK YOU!
Thanks for the positive feedback. I really hope the test goes well!
very simple and straight to the point 👍 one of the best explinations
Clear explanation .
Once you've calculated magnetic declination for the current year. I think it's easier to skip the rest of the math to set / point the compass to the correct direction. If mag declination is 15 degrees west, turn the compass dial 15 degrees CCW. If it's 15 degrees east, turn the compass dial CW 15 degrees.
thanks a lot, Mr. Matt.
I'm trying to cram a whole year's work the night before the exam😅 you really helping me a lot thank you
Finally! I have been struggling to get the declination concept down. MN moves, TN doesn't so the bearing I take on a map with protractor will always be the same. The bearing I take with a compass will be different over time because the MN moves.
Really good video, helped a lot
You are tremendous. Love all of your videos. Please make many more.
Thanks for the feedback. I'm planning to post more videos, but it's going a bit slow due to my full time teaching job etc. I hope to post two more within the next two weeks or so. Ok, all of the best with the studies!
Better than my real teacher and straight to the point !
thank you, very helpful
Best teacher i have ever seen in my life ❤❤
Thank you so much! Now I understand it.
This really helped me a lot🙏
Thank you so much for the great explanation you helped me a lot
Blitz 1505 You're welcome! I hope the studies go well.
I swear teachers complicate us when the explain magnetic declination this guy just made it simple🙏
Thank you so much this helped me a lot
You're welcome, I hope the studies go well!
Thank you Sir, really helped very much.
I'm glad I could help. All of the best with the studies!
You're the best thanks!!
agree
great videos!!
Glad you think so!
Thanks this helped hopefully I do well on my test
All of the best with the test!
really helpful thanks
You are the teacher of teachers sir....
Hi Geofrey, I'm certainly not the teacher of all teachers. However, I'm glad you found the video helpful. May the studies go well!
Awesome video bro u really helped me out for my exam thanks
I hope the exam goes well!
Thanks for teaching me a day before my exam💔
Hope it went well!
Thank you so much 🤗
You're welcome!
your literally the reason I am passing this paper
I'm glad the video helped and thanks for the feedback!
thank you for the help
You're welcome. May the studies do well!
Thank so much, kindly explain this.... why do we add to west and subtract to east?
Thank you
Thank You Mr Fish
thank you for your help
You're welcome!
Thank you so much
Welcome!
thanks i got 99% in map work you're the best
Wow, congratulations! That's such good news! Thanks for the feedback and have a blessed day.
How do we determine mean magnetic declination for a particular area? Is it always 5' per year no matter where you are?
You make geography so easy ✊🏾🔥🥺
Glad you found the video helpful!
thank you but am still getting trouble in calculating when using a map how to find the mean magnetic declination on the map and also in calculating the difference in time do one also calculate the difference btn months when provided
thank you so much 🙏🏼
I'm writing in a few hours 😂😂
May the exam go well!
Buddy your a great teacher keep this shit up.
Thanks for the feedback and all of the best with the studies!
Hello! How are you? thank you so much!! 😀 I really appreciate you making this video.
Aadila Hussan Hi, I'm well thanx! No probs, I enjoy making vids. I hope the tests go well!
Great! I hope so too!! 😄 currently preparing for mid year. God bless x
thank you mr
You're welcome!
Thank you sooooo much. I'm writing final tomorrow
May it go well!
How many meters off course would you be when hiking a kilometer if you were to ignore the magnetic variance stated on a map ?
Very good
I'm glad the video helps. All of the best with the studies!
Sir will you please make a video on how to measure strike and dip using a brunton compass please.
It is 11PM
Thank you sir.
You're welcome!
Kindly post a video on cross section balancing and restoration
me watching this 2 hours before my finals geo exam😭👍
Thank you . At 2:53 what is 142 mils and 29 mils?
I need some help ...lets say we have to calculate the magnetic bearing for the current year ..and the mean annual change is in(2000-2005)
And i want to find the differences in years , do i subtract the year 2000 or 2005 from the current year ?
I need help and i am going to write my test in the next 8 hours
thanks u saved my ass. Missed an extra lesson when everyone got tought this except me. Thanks so much
You're welcome! All of the best with the studies!
Smartest guy on earth 😁
Good and simple definition of why we calculate it. Textbooks just beat by the Bush.
I'm glad the video helps. All of the best with the studies!
Omg bro if it wasn't for you i wouldve faild my grade 11 geography paper i love you so much😍😭
I'm glad the video helped, may the studies go well!
Legend
😉
me learning this 2 hours before exam 😭
Hours before the exam so crazy
Hope it went well!
What date must you use there is a lot of date on the questions
East is least west is best. Best way to remember adding and subtracting from your magnetic bearing
Good one that, thanks for the comment!
Finally i get it 😥
Lets just agree that we're both wathcing this the night before
May u please make an example of subtracting (to the east) and elaborate more on how to calculate magnetic bearing because you mostly ecplained how to calculate declination only
Hi, thanks for the feedback. I'm certainly planning to make more videos, it's just that I'm currently preparing my students for their final exam, so I don't really have time to film, edit, etc. Anyway, all of the best with the studies!
What about back bearing. Compass heading set on magnetic north = 0° Back bearing should be South = 180° but compass reads 190° Should you then always subtract the declination value to get to the righ back bearing regardless of the forward bearing. Hope it makes sense
How did you find the average annual change to be 5?
Hi, that 5 was part of the given information by the teacher, in other words, it's part of the question. I hope that clarifies it for you.
Fish Thank You!
How did u calculate the 13* 95' to 14* 35'
Hi Freddy, thanks for the question. The 95' next to the 13° is the same as 1° and 35'. This is the case since 60'=1° (there's only 60 minutes in one degree), and then you have 35' left. So then you add that 1° to the 13° which is already there, and write the remaining 35' next to it. Hence, 14°35'. I hope this answers your question.
Can u explain why we only have north and south facing magnets and why we don't have east or west
Hi, it's to do with the magnetic field of the earth with it's magnetic north and south pole. Here's a link: www.topperlearning.com/answer/is-there-is-not-east-pole-and-west-pole-of-magnet%20/0cgto2kk. Hope this helps.
Flat Earth
@@milanm2239 Do you believe the earth is flat? Do you have any links that you could share with information on this topic?
Did i get this right that because 95 minutes will not make sense ..we have to subtract 1 minute and add it to 13 degrees which will be converted to degrees and find that we are subtracting 60 minutes because a degree is equal to 60 minutes ??
Dankoo Malum
What language is that? Does it mean 'thank you so much'? Anyway, all of the best with the studies!
When to the west,do we add o
Correct, when the declination is to the west, you add. All the best with the studies!
how/where do you get the normal bearing which is 195 degrees?
Hi, I just made it up and used it as an example. In the video, I call it "normal" bearing but to be more specific, one should talk about either true bearing or grid bearing. This means, you use either true north or grid north in order to measure the bearing. Many people argue that the difference between true north and grid north is so small that it can be ignored, but you should pay close attention to your teacher and find out exactly what they want. You can watch my other video on how to do a "normal" bearing here: ua-cam.com/video/T40AMljjgrU/v-deo.html
Sir, I want to ask why does magnetic declination get bigger over time. For example, 2000 the magnetic declination is 7' and for 2024 it is 20'. Or something like that. You mentioned that at around 0:58 and 1:05. What I am asking is, "why does the magnectic declination change over time?"
Hope you respond soon. I need to answer the question today for my task. i.o.w. I need an answer now for my question lol because i need to give in my task today.
why is it that the answer is 13°95 when 13.45(how i did it) gave me 63.45? basically my Q is how do we input the 13°45 in a calculator
that intro is bae
and why fish
How to use magnetic declination to show direction or to reach certain place?
Hi, firstly you need to find out the most recently updated magnetic declination for your starting point as this changes all the time. You can do an online search to find this out. Once you know the declination, you can work it out. It can be quite complicated to explain, but I have posted a video on the 3 different norths which might help. Here it is: ua-cam.com/video/UtmwAw30Xjc/v-deo.html
@@fish9529 thank you so much💙
Sir do you measure the true beating on the map with a protractor?
That's correct, I have posted a video that shows how. The link is at the end of this video if you need to see it. All of the best with the studies!
please help me with magnetic bearing and true bearing
It's only too late once u get in the a axam room😂😂
Why did you write 14degree 35minutes insteed of 13degree 95minutes.
I just want to know the procedure
Hi there, good question. Let's zoom in on the 95 minutes and forget about Geography for a moment. 95 minutes can also be written as 1 hour and 35 minutes. We know that 60 minutes = 1 hour, but don't forget about the remaining 35 minutes. That's how we get to one hour and 35 minutes. BUT, remember that we are not working with time here. In this case, we have degrees and minutes. One degree is similar to one hour, in that we have 60 minutes in one degree. So if we take 60 minutes (out of the 95 minutes) and write it as one degree, we should add it to the 13 degrees we've already got. This will give us 14 degrees, with 35 minutes remaining. That's why we write 14 degrees 35 minutes instead of 13 degrees 95 minutes. I hope this answers your question. All of the best with the studies!
@@fish9529 thanks mr. Fish
Test saver!
u legeeendddd
Your video is good audio quallity is good. But turn down the background music just a little so we can hear more of that lushious voice of yours. 😃
I actually want to sing opera in public and make a video of that. Not that I'm an opera singer at all - I just want to see how people react if I do that fervently in public. Would be a great stress reliever.
dankie oom 😝
Groot plesier!
But what if your bearing is 340 for example and your magnetic declination takes you over 360 degrees
🐐
Tumeric = ?
Wow
It's covid and I haven't attend a singe online for geography this past 2 terms, wish me luck.
I hope you managed fine!
@@fish9529 I think I did well, I think I got a distinction! And that's mainly because of your videos, I would have failed mapwork if I didn't come across your channel, you made magnetic declination so easy and it was straight to the point. Thnx for your amazing videos mate.
@@fayzaanabdul3537 I'm so glad to hear the good news. You're welcome!
You use the same principle when using Grid North
I want to ask how do we change that 95 degrees i am writing exam next week
Hi, are you talking about that 13°95' at 4:44? The reason we change that is because there's only 60 minutes in one degree, in other words, 60' = 1°. So, you already have 13°, and then you take 60' (one degree) from the 95'. Add this 1° to the 13° and then you have 14° plus the 35' that's left. Hence the answer: 14°35'. I hope this helps. If I misunderstood your question, please let me know. I hope the exam goes well!
@@fish9529 thank you i get it perfectly
@@fish9529 i am greatful your videos are so helpful
@@sinentlahlagosa1469 Thanks for the feedback. May the studies go well!
not me doing this the day before a prelim
There's a simple formula for the last part;
TB=MB+/-MV
the +/- depends on direction either east or west,the MB is magnetic bearing and the MV is magnetic variation or simply the total magnetic change between the two years.
Nice video tho
1:34
My guy
As I Am Learning 2 Hours Before My Exam
Hope it went well!
Who's writing Geography today June exams