How do Satellites work? | ICT #10

[@SabinCivil]

Can you be one of our patron? www.patreon.com/LearnEngineering . I will truly appreciate that.

[@shaikabuzergafari8657]

How optical fibres works

[@abuadnan1971]

The video says that the satellites has Expiry date

[@subratmohanty3593]

Sir can explain with animation how electric locomotive works because there is not any source I found to understand...

[@manigenctir2039]

Thank you

[@hicuteboy901]

Main Koi engineer Nahin Hu per Mujhe is bare mein Jankari Lene Mein bada maza aata hai hi ki chijen Kis hisab Se Kam karti hai

[@athraasameer7538]

I love studying these type of things some people have online class thats why they came here maybe but i came here for my online class

[@ranjithsivanandham1927]

Mee

[@juanbivalls]

Congrats me too

[@armwrestlersanta]

Im not Here because of online class, Im watching this to have fun

[@shaikrazik8926]

I like this class comparing clg classes

[@cutiepie7649]

Mee too

[@tony-pc4kd]

I think you should make part2.. With more details..

[@lbmetei7596]

Yeah, he didn't stress much on satellite communication. He said it's not efficient because the wave has to travel a distance of 22000 miles but EM waves travels with the speed of light 🤔

[@ReflectiveLayerFilm]

@@lbmetei7596 The further the satellite is the weaker the signal will be be when it reaches earth. Also at that distance the delay is about 140 millisecond which may not be a big deal. But the signal may have to travel that distance up to 4 times. So that's more than half a sec of delay which is not good for real time communication such as gaming or voice.

[@samueladitya1729]

@@ReflectiveLayerFilm low earth orbit satellites will have much less delay

[@chetanchouhan7936]

@@samueladitya1729 by

[@lorimeyers3839]

5:14 I work in satcom and my company does TT&C (tracking, telemetry and control) of a few old geo satellites for this at an earth station. We provide all the data directly to the spacecraft owners.

[@thedduck]

Someone go tweet this video to the flat earthers, I bet they would be graciously thanking you for opening their minds on this elusive satellite thingy 😂

[@redaslife1392]

It's flat , there's no such thing as satellite , its just an electro magnetic waves in the sky , just like the 4g .

[@publicmail2]

Truth is they want attention, they don't believe it's flat, but by making these statements, they are assured to get feedback. It's a way to get some social interactivity in an otherwise antisocial existence they live.

[@Joso997]

I mean really they are just drones in the sky

[@ELRYANK]

kzbin.info/www/bejne/i6iumHurptpofNk .... So you can make a stronger argument, Satellites are real. About them going outside of the earth is another story.. You are arguing definitions. Some of the trouble is in the vocabulary used. Space is also real, it is between you and another object. Yet again Orbit. If a Fly or wasp buzzes around your head it can be said the fly or wasp is in orbit, around your head. Thank you for your time

[@redshop1234]

@@publicmail2 Check out Eric Dubay youtube channel or John Thor youtube channel "200 Proofs Earth Is Not A Spinning Globe" for a simple but powerful explanation of the reality of the flat, non-spinning plane we live on. It's very interesting.

[@ciarawoodall5416]

Really enjoy that you go from Leo to Geo then back in the middle. These videos are fun I learn alot.

[@ivancortez4689]

flat earthers are panicking after watching this video.

[@LIOTBs]

It's a great video, but one thing, as a physicist there is one thing the has sneaked into the public vernacular that is not correct: There is no such thing as centrifical force. What they mean to say is: Centripetal = center seeking force (centri = center). Ex. Gravity Centrifugal = away from center force (fug = away). Ex. The velocity of the satellite

[@patrickthompson5513]

the velocity- either angular or linear- of the satellite is not away from the center. The linear velocity is tangential to the orbit. And for angular velocity, inwards/outwards it is meaningless. Gravitational force is the centripetal force. But yes centrifugal force is make believe.

[@CreamerMusic]

If only fundamental physics was more highly valued in schools. Here I am at 30 years old looking up “how do satellites work?” My other question is: why/how does a physicist end up watching such a basic and elementary video, since you apparently have an identity of being a physicist and if you notice gradual and slow changes in the public’s way of interacting with physics terms, you’re not new to this. So why are you here? It would be like someone with 15 years of experience as a medical doctor looking up “What is medicine”

[@सुमित-र6य]

Very helpful and informative video for competitive exams and for the general knowledge as well.

[@flyinghawk9136]

This video was so interesting that it felt like, it ended in a fraction of second....

[@GyanerDisha]

Thank you for such a easy and best explanation 😊

[@hxngpxxeth2044]

dear ! This is the best topic for me.I like so much ! I really interesting to ICT Topics .thank you,

[@dsdsspp7130]

Confessions of Walking Speech 1.0 There are live videos of satelites if you're looking for it.

[@ThienVo1984]

Do vậy mà tôi ko chọn dc chiếc nào trong Sân Bay đường 9 Khe Sanh. 1 - không đảm bảo về mặt kỷ thuật & an toàn bay. Về lý thuyết nó đúng. Nhưng, mạo hiểm quá. 2 - Ồn ào chết mẹ !

[@Testequip]

@Confessions of Walking Speech 1.0 Is there any pictures of them? What are you specifically looking for?

[@Testequip]

@Walking Speech If it's pics of satellites from earth you looking for - well that's not going to be easy. Even with the best ground based optical telescopes. Satellites range in size from a Rubiks cube (cube sats) to the size of an SUV in the geosynchronous 36000km orbit. Trying to seem them through a telescope or a zoom lens of a camera is equivalent to observing an ant 2 miles away through a telescope. You ain't going to see it.

[@NoName-ef3jq]

So... We just leave dead satellites up there, even after 66 years since the first launch. We just never chose to find a way to recover the material.

[@CreamerMusic]

Or we found a way and it wouldn’t be worth the cost of money and time and resources to accomplish it, so we made a choice to do something else that is less wasteful. Perhaps

[@Thegunsonthego]

the visuals you have provided are truly astonishing. Thank you for the good work

[@kalyanigupta6385]

best video on yt to explain " how satellites work?"

[@trollmarlo]

After 2 years of uploading this video, still it's helpful for many people❤️thank you lesics😍

[@DanishNoyan_bharat]

Finally I got the the correct knowledge on satellite , Thank You

[@Faiselmoha]

Thank you very much. Please keep it up such educational videos.

[@TONY1-2]

I love the lesics teaching quality. It covers the concepts deeply by diving deeper & i like to dive deeper in every single concept. Keep it up ⚡

[@Timepass_guys]

learn engineering- u r doing a great job to the youngsters started with mechanical and then electrical now electronics and communication next ,,,,,, we r waiting

[@soundcoremusicmix]

Awesome! 🥳

[@malayhere1]

Thanks for this amazing animated video. Your every single video is wonderful & full of knowledge.

[@ImranAli-us9ml]

Too much informative video,the way of explaining concept by making us visualize was amazing

[@darshinigh3543]

Yo good job I really love it

[@Lovestarlucky143]

Thank You for Sharing Your Knowledge & I Like Your Voice ✌️😍💐

[@mcccccc453]

this is so powerful!!!!!! thank you!!!!!

[@manibabubanti3829]

Your videos are very good. So please do more videos on satellite communication. I think it is a good platform to learn education. We will support your channel 100% and we wish all the best 👍

[@strongholds12]

Manibabu Banti Cell phones are connected by land based towers and the world's internet is connected threw underwater cables. It's flat, look into it 🙄

[@lucasread1743]

Bros a flat earther💀🗿

[@Testequip]

​@@strongholds12 Oh dear...

[@sebastien7755]

loved it thx ... never had that much motion sickness in a video thought .. hollllly !!

[@Jaiysful]

Extremely clear and well-illustrated vid. I LOVE IT. Thank you.

[@gianni8993]

Interessantissimo. Davvero !

[@judgeberry6071]

That was a cool and interesting video thanks. The space junk that must be floating out there eh? 😮

[@martinrossi3541]

Satellites uses Reaction Wheel for pointing maneuvers, thrusters are used for orbital corrections

[@ratnendrarai6988]

Great video. There should be part 2 for detailed information.

[@Xxyyzz25]

Which software did you use to make animation?

[@inrine9866]

0:07 ayy she vibin in da Tesla

[@rafaelramos6320]

Thanks!

[@XtraCoolStuff]

What is the life of thruster? Do we refill them at regular intervals? Or we just make entire satellite scrap when its thrusters' tanks get empty?

[@thunderboltcloud3675]

Actually they're scraped up in space untill they loses alltitude over time

[@dsdsspp7130]

They just lunch a new one. And the old one goes to the graveyard orbit which is 321 km from farthest active satellite. But I'm not sure about all of the satellites because there are space crafts capable of refueling satellites. But still youtube comment section isn't a place to get information from. There are better sources you know

[@XtraCoolStuff]

Thanks everyone

[@Tubeunus]

@@thunderboltcloud3675 SATs can not scrap up in space as their is no air friction to burn them up.

[@perfectnoise99]

Do you believe those lies ? It is all fake

[@namefame3125]

Thanks it helps a lot

[@MrAdeelpervez]

This video gave me information of my most of quiestios, learnt alot of from this

[@adityajayaprakash3700]

I have a question. How do ground bases communicate with multiple satellites simultaneously ? I'm asking from the perspective of how antennas receive and process those signals simultaneously. Maybe with the help of Frequency Division Multiplexing?

[@urara4477]

Even after 2 years u didn't got the answer ;-;

[@VU3FKA]

Differnet satellites uses different frequencies for up link and downlink. FDMA will be used across satellites in GEO orbit.

[@ares1399]

Please make a video on how a combustion chamber works in rockets?🙏

[@MenacingPerson]

easy, they have oxygen tanks as well as fuel.

[@bh9823]

Thanks for great video

[@TechMyo]

best learning channel ever i got ❤❤❤

[@ishworikhanal7578]

Me too

[@Diya_06]

1. Transponder Batteries and solar panells for power supply Sun sensor Reflector antenna Thruster

[@Emileisenbahn]

This somehow reminds me of Wall-E ... Good Vid btw :)

[@mete3254]

Gouber-nete at its best.

[@abhishekbihari177]

@Learn Engineering, you always explain everything very beautifully....thank you...

[@jakub.kubicek]

0:30 There ain't no centrifugal force. There's only a centripetal force: one that points inwards. In a satellite's case, this centripetal force is the gravitational pull. What keeps an orbiting satellite in orbit is the balance between its centripetal acceleration (caused by the centripetal force) and its lateral velocity with regard to whatever it's orbiting.

[@ZackWolfMusic]

No proof to all what you said and there is no proof of satellites! All images of satellites are animation take for a example NASA satellites going around the fake ball earth!

[@mevlogs194]

@@ZackWolfMusic hahah flat earther

[@yousuftarazi129]

@@ZackWolfMusic Ok, hav u ever seen a ship disappear, from the coast as it moves away from u?. Cause u couldn't see it as it goes past your line of sight your eyes can see sun and they can't see the ship if it's at a distance, much lesser than eart distance from sun. Even if u say nasa, satellite all is fake, how to explain this??

[@christineroy4917]

Thrusters don't work in a vacuum.

[@swahi2702]

@@christineroy4917 Conservation of momentum.

[@MrMECHGaming1]

I love Lesics because I am a Mechanical Engineering Student so I understand more about my course as well as other aspects of Engineering.

[@aikonomic]

0:13 Err, nope. The most obvious question that comes to mind is, "why are there so many friggin' satellites up there?" Otherwise, great video.

[@user-bj3pq2si2l]

they have to control the climate somehow

[@GoldSrc_]

To make money, if you have a satellite up there providing a service you make money. TV, Internet, telephone and every other service that uses and requires a satellite will have a satellite up there. Then we have GPS and weather satellites, plus a bunch of secret government satellites we don't know about and dead ones. We've been doing this for decades, and is not like we can bring them back when they fail so they stay there. Keep your stupid conspiracies in the trash please.

[@CreamerMusic]

@@GoldSrc_why wouldn’t they design it to get the satellite to a strategic location so that it can be collected? I’m sure there’s an answer. Apparently some satellites are sent back into the earths atmosphere when they’re done functioning. Explain pls

[@CreamerMusic]

@@GoldSrc_if theyre secret government satellites then how do you know they exist

[@MasterClassComments]

Shouldn't have taken 15+ years of KZbin browsing to find this video

[@Yathuprem]

What happen to the satellites in graveyard orbits? Does it stay there forever?

[@engr.nemuelobas4923]

Yes. But others dont go to the graveyard. They are now adviced to deorbit them or enter the atmosphere also to avoid space junk.

[@Christian-jo6sz]

thank you i love this vido!!

[@Crypto_Ghost1]

4:12 transponder is actualy a word, Monica Geller.

[@arshiya9099]

lol but she said "transponster" tho as far as I remember

[@AdityaKantKushwaha]

Paapistani Mulla

[@randomiscool9611]

@@arshiya9099 haha yeah it was transponster

[@AnthonyShuker]

*transponster

[@ImranKhan-fn2qs]

@@AdityaKantKushwaha Bhai aaj Railway track pr Tatti ki thi kia?

[@ameyapatil1139]

what an amazing skill you have !!! great video thanks

[@halitekmekci8304]

basically informative, thanks though part 2 would be more interesting.

[@joshuapitong899]

Thank you.❤

[@beadygruer666]

How does a satellite dissipates the heat produced (for example by a transponder)?

[@DenThaas]

Thermal Radiation?

[@engr.nemuelobas4923]

It transfers it to its surroundings

[@DenThaas]

@@engr.nemuelobas4923 yeah but he correctly thought about the fact that for something to give off heat, something else has to take in that heat, which is true for conduction and convection, but not for radiation. We also get a lot of energy from the sun through thermal Radiation

[@DenThaas]

@@engr.nemuelobas4923 the problem for conduction and convection is that there are no 'surroundings' to give it's heat off to

[@nssherlock4547]

They mount hot items in the shaded part of the satellite ,this side is between -170c to -250c degrees depending on orbit.They also use thermal radiators,but heat generally isnt a problem,its keeping elrctronics in a warm suitable temp range.www.astrome.co/blogs/how-do-satellites-survive-hot-and-cold-orbit-environments/

[@jamesmomoh416]

I Learned so much Thanks so much for this amazing Video African appreciate you

[@_notyash]

5:25 Then how does moon , earth and other planets stays in their respective orbits?

[@raghuramkaligotla8382]

May be sun is the reason

[@CreamerMusic]

@@raghuramkaligotla8382imagine…

[@CreamerMusic]

@@raghuramkaligotla8382but wait. How does the SUN stay in orbit. Or since it’s at the centre, does it have no orbit? It’s just suspended in space? Or is the entire system moving around through space with the sun maintaining the central focal point at all times? Why don’t I know this? Oh yeah. Became a nurse. Fml

[@raghuramkaligotla8382]

Hahahah great questions 😊

[@WeWanTYouRSoLe]

you have no idea how many lives you just saved.

[@hakanaltundal1600]

I clearly understand all, but I dont understand one thing.. how couldn't maleysia airlines plane be found yet????

[@ahmedcabdiraxman1089]

Hakan Altundal allah (God) knows that all he tell us is human skills.

[@selvakumarc]

Brilliant Video....Thank you

[@raunakagrawal4230]

I wish I could go to space after watching this video 😂

[@abuadnan1971]

A satellite will hit you 😂

[@CreamerMusic]

@@abuadnan1971satellites aren’t real. Read the comments. Get with the times.

[@Mohammad_Anani]

Thank you,i used a lot of the information and the animations to make my physics powerpoint project

[@terryi8892]

How are satellites refueled ?

[@JayRana12]

Solar

[@ShvyrkovAnton]

They didn't. Usually, satellites' lifetime is about 15 years. After that, it replaced by a new one.

[@lluismr97]

They are not refueled, the amount of fueled they carry is calculated beforehand in order to last for the entirety of its lifetime. Then, as it has been mentioned in the video, when the satellite is about to run out of fuel, they move it to the graveyard orbit and leave it there.

[@0samfisher]

@@lluismr97 but this Is a waste of precious and expensive materials

[@lluismr97]

A waste of materials would be to go and refuel them, remember you have to launch a rocket to get to them so it is much better to just launch a new one. This obviously increases the amount of space debris up there and that's the main issue that needs to be solved.

[@ghalibhassan7047]

It helped a great deal. Thanks!

[@FlameBlueNova]

Wonder how much stuff is floating in the space graveyard.

[@makuwetommy5565]

Is it not possible for them to be removed?

[@mahavirchouhan7873]

@@makuwetommy5565 no it will take billion of dollars to go to space and collect them and there is no use of collecting it means billions of dollars will be wasted

[@CreamerMusic]

@@mahavirchouhan7873that’s what I was thinking. Why not design satellites to just get back to a location or do something else that would make it feasible to collect them? I’m thinking it simply doesn’t matter, money wise. Morally, it matters. However, one might argue it’s more ethical to just leave the satellite in space forever because the environmental and time and financial cost of getting the satellite back would far outweigh actually rescuing the satellite and having the trash taken out of space. Idk. Makes sense to me that if we can get a satellite into an orbit, we can do the opposite, and get it back, and it wouldn’t necessarily need to have a major cost associated with it. There are satellites and they are uselessly orbiting in space, but they aren’t inherently worth bringing back to orbit when their fuel source depletes. I’m thinking a lot. Hmmm. Why don’t we just throw a new engine and new parts into a computer or a car or anything when it “dies”? Perhaps we should. Or perhaps capitalism can’t thrive when we are recycling stuff. The 1% gotta get paid. There’s no money in taking a satellite out of space and bringing it back to Earth. The main motivation here seems to be maximizing profits for the shareholders of whatever companies own the satellites. The motivation isn’t to be ethical and do the right thing. We gotta think about long term sustainability though. As humans, can space handle the amount of satellites and they “trash” we discard into space? The answer is yes. For now…brb while I spend the next 6 months on KZbin teaching myself physics.

[@GraceEngineering]

When debating flat earthers, I pull up and share videos like this.

[@NiiOnLood]

Does this convince them or turn them back? Probably no.

[@deanfloyd8931]

Sputnik 1 orbited the earth 1440 times, traveling at 18,000 mph. Yet inspite of performing all the necessary requirements, fell back to earth 3 months later. Now using the same method, satellites stay in orbit indefinitely. Curious

[@killstreak4767]

The thrusters keep them in orbit ??

[@deanfloyd8931]

@@killstreak4767From what I have read, that does not seem to be a requirement.

[@tgstudio85]

Dean Floyd it is required for LEO as there are still few particles of our atmosphere there slowing down anything that orbits on that altitude. You heard wrong.

[@deanfloyd8931]

@@tgstudio85 Do you believe Father Christmas needs all eight reindeer or is there a bit of redundancy?

[@tgstudio85]

Dean Floyd what has that to do with satellites?

[@ahmetakdemir7903]

Excellent video

[@AdityaKantKushwaha]

The background sky is completely similar to SFS game

[@ZackWolfMusic]

Hey clown!

[@explorewithsoulsagar916]

make a video on the submarine

[@maxplank1196]

No wonder one satellite can cost a hundred million dollars

[@atulimakvana1092]

Very nice explanation

[@TbhLolIdc]

What happens when the satellite graveyard fills up

[@CreamerMusic]

Based on the other comments on this video, I now speculate that since satellites aren’t real, then the satellite graveyard also cannot be real. It’s a hoax and you’ve been fooled. nice

[@teezsultanhamraa5889]

فكرة الغدسة والمرايا دى روعة وعزيزة حرمتنى لية ياةخلوسى

[@abudyalrehaili]

You said “if they’re broken we need to activate the thrusts to let them go beyond the orbits ” this gonna make accidents between the satellites that we’ve never heard of . I’m sorry but I doubt that they are existing anyway .

[@BrekMartin]

I guess you haven’t directly made use of any.

[@ΈφηΝικοπούλου]

Yeah umm then how the heck does bloody gps work and also how have we taken color pictures of the earth's surface?

[@mdjahidhasan1976]

Sir, I see your video on KZbin , it's very effective & realistic to learn. I know about that your video are many languages with different channel. I will be happy to see that Bangla language. I am a student from Bangladesh. Please do something. 😍😘

[@riseabovehate9476]

Yet whenever I see a photo of earth from space. I dont see a single satellite.

[@Ammanle]

Azazel 😂😂😂 they like to hide in there balloons while talking picture

[@GoldSrc_]

The ISS is a satellite, you can see it in quite a few photos of the Earth from space. There, you're wrong :v. Seriously though, the average satellites are not more bigger than a car, you wouldn't see them unless you're too close to them.

[@Ammanle]

Gordon Freeman 😂😂😂 right so you can’t see a cars flying 1500 miles bs

[@GoldSrc_]

@@Ammanle you can't, that's like asking to see ants in the photo of a mountain. Are the concepts of size, distance and scale unknown to you?

[@big.r5550]

@@GoldSrc_ thank you so much for schooling these FOOLS who are asking some retarded questions. I can't stand stupid people.. 🤮🤮🤮

[@Anusripd09]

Thanku so much

[@ShubhamSingh-apk]

Hindi version required

[@terry.chootiyaa]

*This video was very useful 👍*

[@bradnoyes7955]

0:38 sigh, again, there is no such thing as a centrifugal force. "Centrifugal Force" is a fictitious idea that is used to describe the apparent outward force on an object in radial motion. Centripetal force is the actual force that causes an object to travel in an arc and in this case, gravity is the centripetal force.

[@JayLikesLasers]

The centrifugal force appears in a rotating frame of reference. There is nothing wrong with considering the centrifugal force in rotational motion, because it's sometimes easier and more useful to choose a rotating frame. People go from being okay with it (high school) to hating it and crucifying those who mention it and saying (incorrectly) that there's "no such thing" (woke high school kids and undergrads) to being perfectly fine with the concept (engineering/physics graduates and professionals). Centrifugal force as a concept becomes useful in doing free body diagram at a fixed time point (i.e. turning a dynamics problem into a statics problem. Source: xkcd.com/123/

[@GoldSrc_]

Yes, we know is not a "real" force, but remember that this videos are aimed at the public who doesn't know nor cares about that.

[@harrisonmambwe8996]

Wonderful lesson and good for general knowledge

[@An.Individual]

I note the huge breasted woman has bought a Tesla

[@pmj_studio4065]

Model 3 with S/X interior. So many funny details...

[@merlin5476]

Brilliant video, many thanks for the way you explained it. I do think that most of the planet that relies on satellites for digital communications ( i.e. keeping all your eggs in 1 basket) & most of the infrastructure really is not a great idea. If we go cashless like many governments want & the system goes down ( which it has & does) it causes a lot of issues.

[@xavierbrockway9856]

Is this a joke? 🤣🤣

[@supertracker9823]

1:06 Hate to be the nerd here but, that is not true. Small air particles escape the atmosphere and all satellites hit these particles. This creates a very small amount of deceleration called "Orbital Decay". While this is a slow process, most satellites use RCS or Ion engines to counter this. Sorry for my nerd lesson, it was your fault for reading the entire thing. Also there are more reasons for orbital decay but, this was one of the more simple ones.

[@supertracker9823]

I won't be replying or reading comments here, so comment here what you will.

[@MHA23]

What the F .. superb dude.. 😮. Good work 👍

[@shankarraj3433]

Thanks for the info.

[@livetolive7564]

Thanks for giving me extra knowledge about "how do saterlite perform work in Space.

[@Edzhjus]

Something like space drones..

[@mubafaw]

This has got to be one of the best explanation in layman terms to a hobbyist. Thanks for making such good quality but concise presentation

[@amirosagan1426]

Thank you

[@amitmistri408]

Very interesting fact for me

[@suiramarius17]

When the satellites want to go on the graveyard orbite, why do they trust in a way that accelerate their angular speed ? If they switch to an higher radius, than the gravitational force is less strong (because the satellite is further from the earth) but if they accelerate then they somewhat keep the same angular speed that they had on their previous orbit right ? So when they’re on the graveyard orbital, don’t they get further and further from the earth since the centrifugal force didn’t really change but the gravitational force became less strong ? Shouldn’t they thrust perpendicular to their trajectory? So their angular speed is slower resulting in a less strong centrifugal force as well as a less strong gravitational force so they can keep their equilibrium and stay on the graveyard orbit ?

[@spksharma3654]

THANKS DEAR SIR FOR DEEP DETAILS OF SATELLITES THEORY

[@peteg400]

Fantastic! Thank you!

[@samrupani4316]

Excellent. Very Very beautiful. Thanks. Sam, Houston.

[@dearlychrystabellereantill3050]

I came here while reading elon musk biography. I was mindblown. Just wow. Super nice explaination.

[@suryakanth5370]

Nice & gained the knowledge of satellite communication 👍👍👍👍