How GPS Works Today

[@BRIGHTSIDEOFFICIAL]

Hey there, BrightSiders, what type of phone do you have?

[@5monkey55]

BRIGHT SIDE I have an iPad mini 5 ;-;

[@alpanashukla4904]

iPhone XS :)

[@Gwapo]

So why does this comment only have 3 likes and 5 comments when this comment is 2 hours ago?

[@simplyglenncorpuz]

I got LG G6 phone.

[@aquarius350]

The OnePlus 7 Pro😎

[@BRIGHTSIDEOFFICIAL]

TIMESTAMPS: A brief history of GPS 0:29 How does it work? 1:35 2-D and 3-D trilateration 2:56 Doing the calculations 5:21 And here’s a Bonus 8:05

[@tanaymody3390]

Can you make a video on what is time and the theory of relativity

[@nimalsingh3573]

Hoooddddf

[@svavarkjarrval8757]

Wanted to note that there is a difference between GPS and applications that utilise GPS. Assuming the GPS is not faulty, the application does know where you are, but might have problems using the information. If the application directs you to a wrong location or via a wrong way, it's not the fault of the GPS system itself. One example is here in Iceland where travellers input "Laugarvegur" into their application, wanting to go to a destination at "Laugavegur" in Reykjavík. The application directed the travellers to a destination far into the country, and the travellers didn't realise this misspelling until they passed Reykjavík and were also a few hundred kilometers past their desired destination. Additional nerdy note: GPS is the name of the U.S. navy's system. GNSS (Global Navigation Satellite System) is the general term for those systems. GPS is the everyday term used for such a system since the U.S. was first.

[@SilverMustang920]

Actually the last couple of examples of picking the wrong routes were not due to GPS, but because of inaccurate/non-updated GIS (Geographic Information System) maps i.e. digital version of maps

[@GossipDaily-Celebrity]

You deserve MUCH MUCH more subscribers! Really well explained quality video, keep up the good work

[@TonyWhite22351]

In English it’s MANY MANY more !

[@mikecl07]

bruh they are already at 38 million how many more do they need

[@ytLacob]

@@mikecl07 It was 1 year ago, Mate. They had way less lol.

[@skinnyniggawidfatbelly7212]

49m is quite a lot of subscribers man

[@skinnyniggawidfatbelly7212]

@Adam Bakalski I meant to say 40.9 millions subscribers is a lot already, which was a reply to original comment that said this channel deserves more subscribers

[@HikaruKatayamma]

Don't confuse bad mapping software for GPS issues. Misrouting people has nothing to do with GPS. It's all about the mapping software and the quality of the information stored in it.

[@NeoMatrix5]

"How GPS works explained simply" - thumbnail looks like the end of the world- 10/10

[@mayflinders8795]

Oct 10?

[@thanoss]

Underrated comment.

[@Firehandprodictions]

😆😆😆😆

[@ArticleFifteen]

This made me belly laugh.

[@srgsilent99]

Two things: First Navstar was not the first iteration of gps, a system called transit was then timation followed it then came Navstar. The second thing is it is NOT gps that tells you where to go, gps only tells you where it is when it is and time corrections. A gps receiver then calculates where you are in coordinates then a separate system takes the coordinates and overlays a map on it and runs a pathing algorithm to give directions. Nothing was wrong with gps in the cases where it “miss-lead” people.

[@maximillianpotentine2257]

GPS is a system. It’s made up of three parts: satellites, ground stations, and receivers. Satellites act like the stars in constellations-we know where they are supposed to be at any given time. The ground stations use radar to make sure they are actually where we think they are. A receiver, like you might find in your phone or in your car, is persistently listening for a signal from these satellites. The receiver figures out how far away they are from some of them. Once the receiver calculates its distance from four or more satellites, it knows exactly where you are.

[@_zyozyo]

Great video bright side! This really helped! Keep it up ❤️👍

[@pushpachettry19]

U r right

[@alacnop]

GPS doesn't tell anyone to go anywhere, it just informs the application of current position. It's up to the mapping system to create routing information.

[@balasubramaniantk4863]

GPS : Aha made simple😉 Atomic clocks and satellite precision : *Am I a joke to you* 😒😏

[@osse1n]

*GPS being available, people still can't find the way and ask directions.*

[@BRIGHTSIDEOFFICIAL]

Thats true!

[@Waldlaeufer70]

Well, sometimes it is nicer to talk to people than to stare at the screen all day.

[@Nicanut313]

Some navigation services get it wrong though. I'm a delivery driver and it happens from time to time

[@shiningstar-pn1ot]

Your voice is cool and relaxing...😍😆😀😄

[@_blakep]

shining star ya but it’s computer generated

[@farhaancynix3785]

@@_blakep what

[@RohitKumar-fy9fp]

sir, the bg music irritates , you caan keep their audio low, but the content is the best ever to watch

[@jeffbruce616]

4:13 Why choose Boseman Montana when that lays outside the third circle that was drawn? Wouldn't a more accurate location be the area below that where all 3 circles actually intersect? In fact, there is no point where all three circles' lines intersect -- shouldn't there be?

[@Changled]

Yeah the graphic is completely wrong

[@muhammadbadarhayat4216]

Truly noticed. Wrong concepts discussed in the video. Made a simple concept rather difficult to understand. No one should be learning GPS from this video.

[@charliewilkins8888]

This was something very interesting about GPS that I never knew.....

[@EinkOLED]

President Ronald Reagan allowed the military to make GPS available to the public in 1983, and Bill Clinton in 2000 allowed the military to unscramble the signals to allow the GPS to function at their normal accuracy (something which was only accessible to the military). And that's when garmin started to sell handheld GPS receivers to the consumers for outdoor use/marine/aviation/car navigation.

[@nettsm]

4:18 the intersection is wrong, the 3 circles were supposed to meet at a single point... You are showing a region which is outside the 3rd circle.

[@amoneswart1357]

Net TM Thought i was going crazy, don’t know why that bothered me so much

[@caret_shell]

2:41 Isn't the diagram here needlessly misleading? It's not the first time this clip has presented it this way, with a dotted line linking the device to one satellite and dotted lines linking that satellite to a chain of other satellites. That's... wrong, isn't it? The voice over is literally explaining that the device needs to be in contact with four or more satellites, so the dotted lines should all go from each satellite to the device, not to each other. It's kind of a shame... these fancy animations took work to make, but they're making it harder to understand GPS, not easier.

[@westernproducerSWP]

GPS is a brand name of a PNT system (Position, Navigation and Timing); Russia has GLONASS [insert Russian acronym meaning here....) which is used by some nations globally. China has Beidou; again global coverage; with limited users - but you may want to check your smart phone because I bet it tracks Beidou too. The European Union has Galileo with is globe coverage being used by most European nations as well as others. These four systems are also lumped together as GNSSs (Global Navigation Satellite Systems). India and Japan have regional systems; IRNSS and Quasi Zenith respectively. So not all the world navigates (or get lost on Swiss mountaintops) by 'GPS', but they all, more or less, work are described here - Trilateration.

[@alvinjenson3320]

Hey you! Scrolling through the comments! Hello! ☺️😁

[@dannyj5688]

Hi!!!

[@harshvardhanphalke2285]

Hii🙂!!!!

[@avinashkhopade3397]

Another awesome video!!!

[@killianoshaughnessy1174]

I can't believe how much things are taken into consideration just to keep the time as accurate as possible.

[@danieldan136]

Technology is great when it works... Just like some people brains.

[@sixsensedayspa]

Yes I am more than pisst I think there are people stilling my information I even don't feel like using internet anymore and Google is turning in to a huge problem

[@laurentfxu3rauf193]

You are right

[@josephtuttle1470]

Soooooo...when I lose GPS in a dead section of road while far from any major highway and gain it back when I am near a major highway or civilization...did the satellites stop working?

[@slowanddeliberate6893]

Your 4g connection is required for Google Maps if you have no map already downloaded.

[@hugolachs6620]

no, the micro waves from the satellite didn't reach you because of interference

[@sigsnug7160]

that's the woman with the red dress or the deja vù cat of matrix the film

[@212Romulus]

Also you'd figure satellites are put on orbital paths that function to serve dense population centers

[@212Romulus]

Like why planes use transponders rather than gps

[@jerryjohnsonii4181]

Thanks for the knowledge Bright Side

[@aye_its_alyssa7625]

19 minutes late yay this is a new world record for me LOL😂😂

[@doctorsleep2911]

Gladys Mae West (née Brown) (born 1930) is an African American mathematician known for her contributions to the mathematical modeling of the shape of the Earth, and her work on the development of the satellite geodesy models that were eventually incorporated into the Global Positioning System (GPS).

[@gardengnostic971]

The venn diagram at 4:14 looks a little broken. Boseman does not fall within the circle around Salt Lake City. I might be misunderstanding the graph, but shouldn't the final result be in all three circles?

[@imgauravcm]

I too noticed that

[@chethan.gowdru]

Tq for making request video, Ur information is very helpful bro 👍

[@ZA-ft6zi]

Gui0 I huybjk

[@hasbybiasafil]

I use GPS almost everyday in my life.. I do likes traveling a lot and GPS brought me to a lot of amazing places.. I had a bunch of ‘amazing’ experiences (I don’t think this is bad experiences) using GPS, such crossing a river by my motorcycle, crossing very dark spooky forest in the middle of the night, crossing path way in the middle of rice paddy’s field, and many many more ‘crazy’ experiences that makes my adrenaline pumped. I can’t imagine how’s my life without GPS, maybe I just became a silly introvert kids who trapped in his home. Thanks God and for smart peoples who invented GPS. I really love it very much 😘

[@wildenboy_]

your explaining is better than my parents or text in google!. thx

[@imanerdandliketoread]

hi.i love ur chanel

[@georgeemil3618]

2:08 "When it finds where you are from four or more gps satellites, it can tell exactly where you are." All my Garmin GPSs never gave me my location until it locked on five, sometimes seven satellites.

[@Dr_SatishKasturi]

Best Explanation 😊❤️ keep posting more vedios

[@HengHuiMei]

GPS is a lifesaver!

[@official_bri3609]

HIII LOVE UR VIDs

[@tatasbeautycorner7363]

And my vids?

[@official_bri3609]

@@tatasbeautycorner7363 uhhhhh yeaaaa.... sureeee

[@judyweikumbenson199]

Thanks for explaining...wish I had one!!

[@BRIGHTSIDEOFFICIAL]

Why dont you have one?

[@judyweikumbenson199]

I don't know how to use one.

[@marioiacolucci]

@@BRIGHTSIDEOFFICIAL I have one it's garmin

[@mansooransari8726]

This is GREAT!

[@bishan_8617]

Thank you Ansari, Mansoor!

[@mohanramsujatha]

Excellent video!

[@pushpachettry19]

Nice video very helpful

[@nosik68]

Well you have better chances to survive than trying to find your position in earth having no gps.

[@infinitygaming2346]

Bright side is getting better at science topics and astronomy. I mean it is uploading more science videos. Good Job. Keep uploading more nice science and astronomy videos. 👍👍👍

[@ElectronicAstronaut]

Wow! Amazing video

[@govindannarayanan6510]

Great explanation ;)

[@YungDream-chasers]

thus really comprehensible..... thanks

[@chandanhd8394]

Very informative keep the up your good work 🤗🤗

[@armylovebts4762]

Can you make the subsucribe in my chanel

[@truegamer1403]

@@armylovebts4762 no videos right?

[@Stichwithanuja]

Great explanation... Just love it 💯

[@sabianaaz-wh1pq]

A very helpful nd healthy vedio thnq sir 💫💫💫

[@wzman2006]

4th satellite resolves the 2-points-of-intersection in 3d trilateration. And it's Bozeman, Montana, with a Z.

[@masala0011]

Thanks for the explanation, it was simple and interesting.

[@scottjetten7769]

That was a perfect explanation, thankyou

[@galememeeof6688]

I lived for several decades before GPS by using maps. I survived. lol

[@BRIGHTSIDEOFFICIAL]

Paper maps?

[@galememeeof6688]

BRIGHT SIDE Yes, paper maps, in color and everything. One for each state!

[@abdullah.t973]

Very nice 👍 keep it up 👌

[@jaytheman9271]

4:16 Boseman is not in the third circle lol

[@thefactb8515]

Good explanation

[@Oyzatt]

Wow....that was interesting .👍

[@laurentfxu3rauf193]

From video we can learn more than from school!!!

[@BRIGHTNEWSAI]

I do love your videos! You inspire me so much and now I will definetely try do do something similar to see how it works. Thank you for sharing this amazind idea!

[@johnwalterbagos1]

GPS helps me a lot while I’m traveling to places I’m not familiar with

[@CRYSTALG.C.]

golden words "Technology is Great when it Works"

[@denelson83]

You can't get a 3-D fix on a GPS receiver. GPS fixes are always either 2-D or 4-D. The fourth dimension, of course, is time.

[@ashlyn.nicole]

tHANKS! you explained it well

[@stewiegriffin6503]

GPS and GPS Road navigation are 2 different works. GPS always works, navigation is just a software which sometime fails

[@aliarshad5994]

Very useful info

[@carmaxzambia9486]

Am from Africa zambia watching every video from bright side thanks for your video's

[@BRIGHTSIDEOFFICIAL]

Do you use GPS?

[@carmaxzambia9486]

Alot am using samsung S6edge

[@steve101968]

If you ever want to go down a rabbit hole of cool tech. Think about submarines. They can't get a god signal below periscope depth. But they can sail around the world (hypothetically) and then surface and they will be within 10 meters of where they think they should be thanks to inertial navigation systems. Something I think is pretty cool but I am a big nerd

[@DavidCarter-ib3vw]

I was just reading about how difficult it is to determine height above sea level. Highly amazing. Depends on an accurate description of the shape of the Earth, atmospheric pressure, gravity, winds, tides, etc. Oh yea, check out the calculus formulas involved.

[@VeraPastaEthiopia]

thanks a million, i learned a Lot today !!! thx

[@eloyaldao]

The intersection of the circles was not relected right, but all the other is cool

[@aravindkarthik5120]

Very clear explanation all put in simple words yet in effective means

[@surajaryal2285]

Wow nice video thanks for sharing😅😂

[@davidecardani1803]

Hello BrightSide, what programs and tools do you use to produce these nice videos? Thank you!

[@kuromisthe_best]

A OK true

[@tanaymody3390]

Why does time affect the results to be 6 Miles away from the precise location

[@donaldbeetlestone7545]

Bc it is not as accurate as we think?!...it can't be perfect either so u can't expect it 2 b!?...

[@tanaymody3390]

Well I know it isn't accurate but my question was why time makes a difference in determining location

[@thrustandlift9984]

@@tanaymody3390 we know that earth completes a 360 degree rotation in 24 hours which means every 15 degree every hour and 1 degree every 4 minutes the if someone is standing 15 degrees longitude from a point it means that he/she will have a time difference of 1 hour

[@tobybrown4861]

Because the time the signal takes to get from your device, or ground receiver to the satellite is super important. Because we know that the signal travels at the speed of light, we can use the time it takes for the signal to travel to the satellite to show us how far away we are from the satellite, which in the video it explains is paramount to calculating our coordinates. Since the speed of light is roughly 3 x 10^8 (that's 300000000)m/s and that the time difference between the satellite and earth is 38 microseconds (mentions this in the video) which is 38 x 10^-6. If the signal ends up arriving 38 x 10^-6 seconds too quick then we can work out how much distance will be affected by using the equation speed = distance / time. (3 x 10^8) x (38 x 10^-6) = 11400 metres Since there is 1610 metres in a mile we can find out that. 11400 / 1610 = 7.08 miles I know this is not 6 miles however this is a very crude calculation ignoring all of the small details which would effect the calculation and bring it down (you would presume) And frankly i do not know these effects, it would be pretty cool if someone had something more to add.

[@tobybrown4861]

Okay so no one might see this but we usually assume the speed of light to be 3 x 10^8 m/s, i know its not but it is a lot of effort to actually use the real number which is 299792458. However it really does make no difference only subtracting 8 metres from the final result so there must be something else important. This is that the value we used for the speed of light is for when it is in a vacuum (search up what this is if you don't know) Since our signal (radio wave) is not travelling in a vacuum then the speed must be lower and means that our distance error can be closer to 6 miles. The average speed of radio wave for error to be 6 miles = 2.54 x 10^8 so average speed loss due to atmoshphere etc is 0.45 x 10^8 which is quite alot considering its a speed loss of 15% but who knows.

[@davidkiwa55]

Boseman was outside the circle. Is that a mistake or intentional. Time stamp. 4:15

[@midhundathan4316]

GPS is one of the best technologies I have ever seen

[@isaacheres1354]

Hello and greetings from Boseman, Montana 🙋👋

[@richardturner6981]

Hello from Pompano Beach, Fl., Isaac.

[@xueliyang_]

Bright Side I always learn something new from your videos. Thank You!

[@BRIGHTSIDEOFFICIAL]

That's amazing!

[@zainulabdin4466]

I understand everything that's explained in this video. But, I want to understand the 'electronics' part of it. Like, what is it that is sent to the satellites from the GPS device. How are latitude and longitudes calculated? Can anyone explain it to me in the terms of Hardware? Thanks.

[@scott_meyer]

GPS is one way. The receiver "hears" the signals from the satellites. The data contains the satellite id, location, and a time. From this the receiver can calculate it's distance from each satellite. The point where the distances intersect is the location of the receiver.

[@Bureaucrastinator]

GPS/GNSS and navigation software are not the same. the examples of people getting lost after 08:00 in the video are misleading -- it seems GPS was working as intended but the apps that the people used (like Google Maps, Waze etc) to navigate were "faulty".

[@irfanmd9852]

Really super bro

[@PaoloCaglioLMT]

Parallels define LATITUDE and meridians LONGITUDE, the exact opposite of what you stated at 3:03

[@himanshu2149]

All the people who enjoy watching such videos , believe me you have scientific temperament.

[@jugosever]

They say GPS satellites are not geostationary. Does anyone know why that is? It would be simpler if GPS used geostationary satellites, wouldn't it?

[@alflyle9955]

@Agent 666 Also, geostationary satellites are in higher orbits and hence the received power is cut by the inverse square law. Adding power with bigger solar panels costs weight, which in turn which costs more to launch to account for the greater weight plus the energy to get to the higher orbit.

[@evoevannismo8141]

I personally still need GPS if I'm lost

[@BRIGHTSIDEOFFICIAL]

When was the last time you were lost?

[@williammorris4550]

Wow…I did not know this. Thanks 😍🤩

[@jenserickson1268]

The graphic at 2:46 is not right. The signal between your device and each satellite, not just one, is measured so that your position can be triangulated. The graphic ought to show the signal line between the device and all four satellites.

[@Marc_de_Car]

Are you sure that longitude lines are parallel? (see vid at 3:04) and think that info is faulty.

[@linuszarrouk2004]

they are parralel but only on the surface not on a 2d viev like this one

[@priyabhawnani8451]

Sir can you please tell that which software or app do you use for editing your videos??

[@MSEntertainmen]

There can be a high chance of depending upon Military GPS but public GPS is not always accurate. The most accurate GPS is human being. 😊

[@usmanqureshi2741]

Well in countries like countries of south Asia people generally doesn't relay on GPS they generally don't go to places whose address or location they don't know. if they really want to know some location they will not search it on Google map

[@TranceDivine]

the flat earthers are quaking lol

[@asimking857]

Nice vedio about GPS it give a lot of information to the student

[@mlane2304]

I learnrd so much!

[@larryscott3982]

8:18 gps doesn’t figure out what roads are!! The driving errors were primarily map database and instruction errors. Which has not one thing to do with gps. No, this is a bad video.

[@ahmedrao9800]

Who else use Google map for a GPS

[@IntellectualHazard]

I use Actual Maps which are written on paper..Have you heard of this term..they're very rare bro

[@thegg235]

Mehh.. My country is small and its not worth to use GPS all the time since all roads are easily accessible

[@Grit09]

Google Maps and Apple Maps

[@donaldbeetlestone7545]

Me 2...I have an LG at&t fone/phone so...ya...!?...

[@donaldbeetlestone7545]

@Robert McGlyn Jr me 2

[@Adyapd]

I didn't know that it can detect altitude wow

[@AnimationCow]

I literally googled this question a few hours ago

[@PradeepReddyMuthyala]

From where we can download the satellite footages , like you drawn the Circles and pointed the signals .. could you please suggest me on that

[@josed.ulloacastillo1635]

Now Google determines your location... *Which is Suicidal, but hey who cares?*

[@IntellectualHazard]

@Liam’s Adventures *you're spamming* Edit: I'm your 100th sub...now sub me back!!