Kepler's Three Laws Explained

Kepler's Three Law's were groundbreaking in that they accurately described the motion of the planets around the sun. They dispelled the idea that the orbits were not circular but elliptical.
However, it was not until Newton that we understood why Kepler's Laws work.
Kepler's work was not in a vacuum however, and was the culmination of hundreds of years of studying the stars - from Aristotle's and Ptolemy's geocentric model to Copernicus' geocentric model and the meticulous measurement of the planets by Tycho Brahe
This video provided an introduction to the scientific history and then proceeds to discuss Kepler's three laws
CHECK OUT THE LESSON ON KEPLER'S LAWS - WITH LOTS OF RESOURCES - www.physicshigh.com/kepler.html
A brief index if you wish to jump straight to the laws
0:00 start
0:43 Ptolemy
2:27 Copernicus
3:55 Tycho Brahe and Kepler
5:38 Kepler's 1st Law
7:15 Kepler's 2nd Law
9:15 Kepler's 3rd Law
12:13 Isaac Newton's explanation
15:25 an example
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Пікірлер: 289

  • @reka6356
    @reka63562 жыл бұрын

    i think my brain just melted out through my ears - I can't fathom how you guys' brains just work like this. I have a huge respect towards all scientists but especially the ones dealing with mathematics . It truly is a talent you have to be born with, to see numbers in such a complex way and understand immediately. It takes me a long time to GET IT. Thank you for this video, it did help a lot!!

  • @algotraderoptionnfutures4885

    @algotraderoptionnfutures4885

    Жыл бұрын

    Imagine those times no schools, libraries, printing presses etc.. All these discoveries were interdependent.. how they had access to each others discoveries..who documented it?

  • @zrATT_

    @zrATT_

    10 ай бұрын

    ​@algotraderoptionnfutures4885 maybe they used WhatsApp back then

  • @kwiky5643

    @kwiky5643

    2 ай бұрын

    Trust me they are all extremely intelligent, more than me or you, but they work a lot too to become that good. There’s no miracle in science

  • @kwiky5643

    @kwiky5643

    2 ай бұрын

    @@algotraderoptionnfutures4885most sent letters to each other

  • @ZhounaMusic
    @ZhounaMusic3 жыл бұрын

    When you went through 5 lectures and 3 discussions and still have no clue what the three laws are exactly, and a KZread video can explain it clearly in less than 20 minutes. You really start questioning our country's education system...

  • @PhysicsHigh

    @PhysicsHigh

    3 жыл бұрын

    Im glad I was able to hep you

  • @shig8888

    @shig8888

    2 жыл бұрын

    I keep hearing different versions of this, the reason why you find KZread videos simpler is most likely because you're simply paying more attention or because you have the ability to pause a video. If you have actually gone through 5 lectures and still didn't understand it, you might just be a dumbass.

  • @-TheInfamousOne-

    @-TheInfamousOne-

    Жыл бұрын

    The difference is people used to go and seek a great teacher, now children are provided one by the state that teachs a 3yo-3000yo curriculum.

  • @Matteop113wo

    @Matteop113wo

    Жыл бұрын

    same boat here this video saved so much time and was great to watch

  • @matthewfang440

    @matthewfang440

    Жыл бұрын

    @@PhysicsHigh help* why can't you spell

  • @blazetech6614
    @blazetech6614 Жыл бұрын

    It took me all night to understand the 3rd Law. Thanks for relating Newton and Kepler's Concepts

  • @cleyowki

    @cleyowki

    Жыл бұрын

    We will be reporting abt the 3rd law and now I'm starting to get scared just by seeing ur comment (knowing that I'm bad at physics) lmao

  • @gudeliop

    @gudeliop

    10 ай бұрын

    same @@cleyowki

  • @Heiressesoftheking
    @Heiressesoftheking3 жыл бұрын

    5:37 is when he starts talking about the three laws. You're welcome!

  • @kedarhaldankar1316

    @kedarhaldankar1316

    3 жыл бұрын

    Thanks X

  • @Heiressesoftheking

    @Heiressesoftheking

    3 жыл бұрын

    @@kedarhaldankar1316 You're welcome!

  • @samb9049

    @samb9049

    3 жыл бұрын

    t.y.

  • @marczoorob7042

    @marczoorob7042

    3 жыл бұрын

    Saved my life

  • @guuguu7559

    @guuguu7559

    3 жыл бұрын

    My love

  • @ivimarie1
    @ivimarie15 жыл бұрын

    This is soo cool! I love the interactive way of learning. Thank you thank you! I have watched so many videos and only this one has really made sense to me.

  • @ranganathsh989
    @ranganathsh9895 жыл бұрын

    very good explanation.

  • @BillyBob-bo9tn
    @BillyBob-bo9tn5 жыл бұрын

    Wow, excellent video!

  • @cotyw090
    @cotyw0904 жыл бұрын

    Well done!

  • @cashchristian-im2lt
    @cashchristian-im2lt10 ай бұрын

    thx for the video

  • @Supercellgames-mi8jz
    @Supercellgames-mi8jz8 ай бұрын

    Thank you so much, keep up the good work dude ❤

  • @PhysicsHigh

    @PhysicsHigh

    8 ай бұрын

    Thanks

  • @Thundar
    @Thundar2 жыл бұрын

    thank you this helped a lot

  • @KisneMara
    @KisneMara6 жыл бұрын

    Awesome!!!

  • @jacobje00
    @jacobje003 ай бұрын

    This was the video I was looking for.

  • @girlyo
    @girlyo3 жыл бұрын

    🔥🔥this is amazingggg🥺🥺

  • @jammy_pingu4434
    @jammy_pingu44345 жыл бұрын

    very well done compliments

  • @dianecolville4149

    @dianecolville4149

    3 жыл бұрын

    Love your profile pic 😂

  • @pushpalatachoudhary3313
    @pushpalatachoudhary33135 жыл бұрын

    Nice explanation

  • @saikatislam1221
    @saikatislam1221 Жыл бұрын

    Excellent

  • @tinfinz
    @tinfinz4 жыл бұрын

    Man that was really cool!

  • @jcj-ik8lc
    @jcj-ik8lc6 жыл бұрын

    Beautiful presentation ! Thank you.

  • @matmurk8536
    @matmurk85365 жыл бұрын

    Well done

  • @kwekker
    @kwekker4 жыл бұрын

    Thank you for helping me study how to play ksp

  • @user-xu6du4wi4g
    @user-xu6du4wi4g4 жыл бұрын

    Thank you so much! I had to study Johannes Kepler for a school project and all other videos and websites were really confusing. You did such a good job explaining and simplifying Kepler's three laws. I would love to hear more from you!

  • @PhysicsHigh

    @PhysicsHigh

    4 жыл бұрын

    Thanks. I have lots of videos on various topics and more to come.

  • @maddieryan6076
    @maddieryan60766 жыл бұрын

    this helped me a lot with my science essay, it helped me more clearly understand the three laws

  • @lebohangthwala6347

    @lebohangthwala6347

    5 жыл бұрын

    It really was short and brief.

  • @untitiled1092

    @untitiled1092

    4 жыл бұрын

    Me too Also subscribe to my channel

  • @Ion_thruster

    @Ion_thruster

    3 жыл бұрын

    @@untitiled1092 No I will definitly not

  • @omarwahab9569
    @omarwahab95692 жыл бұрын

    really i am so grateful for you thanks !!!

  • @kaiserredgamer8943
    @kaiserredgamer89435 жыл бұрын

    7:34 ah thats why slingshot maneuvers are in closest approach possible

  • @cleofeenloran2060
    @cleofeenloran20603 жыл бұрын

    Thank you ❤

  • @sabarishks6089
    @sabarishks60892 жыл бұрын

    Thank you so much sir.

  • @gayanjayalathbandara4604
    @gayanjayalathbandara46044 жыл бұрын

    Yes it really helped .. thank you ...

  • @SolaceEhigiator
    @SolaceEhigiator Жыл бұрын

    Thank you

  • @anjanapandey5091
    @anjanapandey50915 жыл бұрын

    Nice video

  • @alanoodalmehri6714
    @alanoodalmehri67144 жыл бұрын

    thanks sir,i really enjoyed the video

  • @PhysicsHigh

    @PhysicsHigh

    4 жыл бұрын

    Glad to hear that

  • @sscaspirantwalatrader
    @sscaspirantwalatrader5 жыл бұрын

    Thankksss

  • @reduanahmed8422
    @reduanahmed84225 жыл бұрын

    thanks sir.

  • @xjohn8076
    @xjohn8076 Жыл бұрын

    Great Job

  • @whirledpeas3477

    @whirledpeas3477

    Жыл бұрын

    Blow?

  • @calebmagoma6675
    @calebmagoma66753 жыл бұрын

    Thank you so much....

  • @mahinkhadir627
    @mahinkhadir6273 ай бұрын

    So accessible this video content……. we should preserve this

  • @OmarChida
    @OmarChida4 жыл бұрын

    Great explanation

  • @PhysicsHigh

    @PhysicsHigh

    4 жыл бұрын

    Glad you liked it

  • @sandersgreenwood5863
    @sandersgreenwood58632 жыл бұрын

    Good video

  • @tanooparavind9450
    @tanooparavind94506 жыл бұрын

    Wonderfully explained, Sir.

  • @user-br7pu6ex9o
    @user-br7pu6ex9o4 жыл бұрын

    I love your video.

  • @timothylukeleaki6884
    @timothylukeleaki68844 жыл бұрын

    Thanks a lot, it's very helpful.

  • @lovenoeli
    @lovenoeli4 жыл бұрын

    time stamp for Laws Of Planetary Motion: 7:03

  • @sunithavinod1658

    @sunithavinod1658

    4 жыл бұрын

    Thanks mate!

  • @untitiled1092

    @untitiled1092

    4 жыл бұрын

    I know right? Why did he do such a long intro

  • @lucanwolfrl8044

    @lucanwolfrl8044

    3 жыл бұрын

    @@untitiled1092 well, I needed it sooo i can say that it's fine since you don't know who'll be watching this video. Some might find history useful and for some might not.

  • @chino6743
    @chino67433 жыл бұрын

    thank homie this helped with my assignment

  • @PhysicsHigh

    @PhysicsHigh

    3 жыл бұрын

    Glad it helped

  • @SuperExponential
    @SuperExponential5 жыл бұрын

    Wow...I didn't know that Uranus has a period of 30,589 days...that is such a long time for it's neighbors to put up with I think.

  • @joey9540
    @joey95404 жыл бұрын

    Great video. I really enjoyed learning it. Thanks

  • @drewayrit7334
    @drewayrit73343 жыл бұрын

    Very helpful. Thanks.

  • @nearfairwood2826
    @nearfairwood28266 жыл бұрын

    Thank you for this, it helped allot with multiple research papers. Keep it up!

  • @natashaayumie6748
    @natashaayumie67483 жыл бұрын

    this is better thnk you man

  • @boonwalakpathomwongsakul7778
    @boonwalakpathomwongsakul77786 жыл бұрын

    good explanation skill

  • @astechpan3324

    @astechpan3324

    6 жыл бұрын

    boonwalak pathomwongsakul love you dear

  • @geizlercabayao4637
    @geizlercabayao46373 жыл бұрын

    Good day, Sir may I know what application did you use in this video? It would mean a lot if you respond. Thank you!

  • @PhysicsHigh

    @PhysicsHigh

    3 жыл бұрын

    You’ll find all that info on my website.

  • @MatsumotoKael13
    @MatsumotoKael132 жыл бұрын

    absolute legend. thanks a bunch mate

  • @mashaqureshi1535
    @mashaqureshi15354 жыл бұрын

    Very well explained

  • @amarfakhredine591
    @amarfakhredine5913 жыл бұрын

    excellent

  • @PhysicsHigh

    @PhysicsHigh

    3 жыл бұрын

    Thanks

  • @SpeedyNS_
    @SpeedyNS_5 жыл бұрын

    Dang, such an amazing video. Explained everything very well

  • @anuradhachauhan2464
    @anuradhachauhan24643 жыл бұрын

    Thank you sir it was really helpful

  • @sherzadaritrizaman6949
    @sherzadaritrizaman69493 жыл бұрын

    Most clear explanation!

  • @geoffphillips8183
    @geoffphillips81832 жыл бұрын

    Beautifully & delightfully explained. Thanks so much!!

  • @kamalikadatta7232
    @kamalikadatta72324 жыл бұрын

    Very nicely explained

  • @rosshealea
    @rosshealea5 жыл бұрын

    awesome! I refer to this video often in my college astronomy class.

  • @jacksonmerriam5677
    @jacksonmerriam5677 Жыл бұрын

    I am so glad that I am enrolled in a college physics course that will only ever be of use to me in Kerbal Space Program

  • @User-74891
    @User-748912 жыл бұрын

    Thank you. Very interesting.

  • @BobtheScienceGuy
    @BobtheScienceGuy5 жыл бұрын

    Would you allow me to mirror this on my channel? I'm looking for some solid basic science instruction for my viewers.

  • @realcygnus
    @realcygnus2 жыл бұрын

    A gem of a channel !

  • @PhysicsHigh

    @PhysicsHigh

    2 жыл бұрын

    Thanks for that.

  • @pritamshelke7439
    @pritamshelke74396 жыл бұрын

    very good explanation skill

  • @m.faisalshahzad5893
    @m.faisalshahzad58934 жыл бұрын

    very impressive method of instruction

  • @Gordian1095
    @Gordian10953 ай бұрын

    Skipped over some of the explanation of the formulas in 3rd law proofing. If you are going to explain it, please do it completely, step by step, without holes. Thanks.

  • @solomonunruh5325
    @solomonunruh53252 жыл бұрын

    this helped me so much with school thank you so much

  • @yuandadong5177
    @yuandadong51777 жыл бұрын

    Great explanations. You are much better than my classroom teacher. But I suppose Kepler's law of period r^3/t^2=GM/4^2 would only work when the object revolving around a central mass in a circular motion. However, from the video, the eccentricity of mercury is 0.206, which should be large enough for its motion to be considered as elliptical. So my question is can you actually derive a equation that describe such an elliptical motion.

  • @PhysicsHigh

    @PhysicsHigh

    7 жыл бұрын

    Kepler's third law is actually based on the semi major axis (aka r is the length of the semi major axis) so it applies to mercury was well

  • @yuandadong5177

    @yuandadong5177

    7 жыл бұрын

    To derive what R^3/T^2 equal to, you applied v= 2pi/r which is a formula for circle, and you applied the formula for uniform circular motion F= mv^2/r. Well, then the left hand side of Kepler's third law is for an ellipse, but the right hand side is derived using properties of circles. At least to me, it should not work with ellipse.

  • @BikramSarkaronline
    @BikramSarkaronline7 жыл бұрын

    Good video. I am the first viewer, from India.

  • @krishoberoi

    @krishoberoi

    4 жыл бұрын

    @@pedrovillalobos1995 WHAT??

  • @hastakmerai5079
    @hastakmerai50794 жыл бұрын

    How this r for every planet came from bcz the path is eliptical so r is not constant. So how it came from?

  • @simonshack1
    @simonshack1Ай бұрын

    Fact: over a 15-year period (of 5495 days) Mars returns facing a given star in this curious sequence of time intervals: 707 + 707 + 707 +707 + 707 +707+ 707 + 546 days. As expounded and illustrated in Chapter 5 of my new TYCHOS book (2nd Edition / Dec 2023), this means that the geoheliocentric model devised by Tycho Brahe is the only possible configuration of our Solar System. This, because the 'odd behavior' of Mars - what with its "short Empiric Sidereal Interval" of only 546 days is - perfectly accounted for in Brahe's model. It is now high time to realize this undeniable fact - and to expose Kepler's fraudulent ways in his vain quest to validate heliocentrism (as already discovered and denounced by Prof. W.H. Donahue - the American translator of Kepler's "Astronomia Nova" - back in 1988).

  • @kaiserredgamer8943
    @kaiserredgamer89435 жыл бұрын

    If Apoapsis-Periapsis = 0, then Eccentricity = 0.

  • @abbynormal1945
    @abbynormal19459 ай бұрын

    What's fascinating about Kepler is that his belief in a God that created a perfect and ordered universe is what spurred him on to create a more accurate model for revolutions. The math is quite something!

  • @ramzimowjood
    @ramzimowjoodАй бұрын

    Thank you for your beautiful explanations. How is it that Kepler was correct in his calculations despite his belief 18:39 that the earth is the centre of the planetary system when the sun is. Ramzi

  • @jackehlert655
    @jackehlert6552 жыл бұрын

    How does Kepler’s third law apply to elliptical orbits if it was derived from equations of uniform circular motion?

  • @PhysicsHigh

    @PhysicsHigh

    2 жыл бұрын

    Actually Kleplers‘s law is derived on ellipses where “r” is the semi major axis. A circle is simply and an ellipse where the semimajor axis and the semi minor axis are the same size.

  • @user-yb2ic1ns7g
    @user-yb2ic1ns7g2 ай бұрын

    When can I use R for radius and r for radius, or can it be used whenever I want?

  • @PhysicsHigh

    @PhysicsHigh

    2 ай бұрын

    We usually use a lowercase ‘r’.

  • @jakekluss620
    @jakekluss6205 жыл бұрын

    Blesssssssssss

  • @untitiled1092

    @untitiled1092

    4 жыл бұрын

    How stupid do have to be.... EVERYONE knows that god is not real

  • @charlesgodswill6161
    @charlesgodswill6161 Жыл бұрын

    Does the elliptic orbit nature here corroborates the fact that the earth is not exactly spherical as it appears ??

  • @EnyewYiresu
    @EnyewYiresuАй бұрын

    ver amaizing

  • @mrvannunen4987
    @mrvannunen49873 жыл бұрын

    Question: What software do you use to produce these videos?

  • @PhysicsHigh

    @PhysicsHigh

    3 жыл бұрын

    I use Inspire from Promethian

  • @jankijoshi5152
    @jankijoshi51524 жыл бұрын

    I am unable to understand keplers 3rd law Dont know why??? Its very tuffffffff😥

  • @physicswitharsema8670
    @physicswitharsema86702 жыл бұрын

    Hi it nice video I have question for you What is ellipse ? in first law of Keplers

  • @aj_beyond
    @aj_beyond2 жыл бұрын

    It's really educating. thanks to you 🙏🙏

  • @koi_leee
    @koi_leee3 жыл бұрын

    how do you do powerpoint presenataions like that? the one that allows the earth move

  • @che7655
    @che76552 жыл бұрын

    On Keplers third law with the radius, how do you measure radius of an ellipse since it's constantly changing? Do you take the average radius across a single revolution or does it not matter and can you just take the radius at any point in the ellipse?

  • @randoshmuckarias1296

    @randoshmuckarias1296

    2 жыл бұрын

    I believe its indeed the average

  • @friendlyneighbourhoodai

    @friendlyneighbourhoodai

    2 жыл бұрын

    It's the mean/average distance from the Sun i.e. radius.

  • @littlesniperop7600
    @littlesniperop76006 жыл бұрын

    how dose it go the same speed if it is far away didn't he just say it was slower when its far away by the way I am talking about the 1st law

  • @craffte

    @craffte

    6 жыл бұрын

    Of course nobody answers...

  • @PhysicsHigh

    @PhysicsHigh

    6 жыл бұрын

    Not sure what you are asking. A object in an elliptical orbit will have a variable speed, faster when it’s closer. Kepler describes this but could explain it. It took Newton to explain with Gravitation

  • @albusdooley8252
    @albusdooley82524 жыл бұрын

    how did kepler's laws of planetary motion change some of the ideas in the ptolemaic and copernican theories?

  • @PhysicsHigh

    @PhysicsHigh

    4 жыл бұрын

    This needs a longer response but in essence Ptolemaic model was geocentric the others heliocentric. Copernican model was circular where as Kepler demonstrated it was elliptical.

  • @albusdooley8252

    @albusdooley8252

    4 жыл бұрын

    @@PhysicsHigh Thank you very much, now I got my answer for my homework💕

  • @karthikasokan5741
    @karthikasokan57414 жыл бұрын

    buddy thank you for this amazing video but you are wrong. K=T^2/R^3 and not the reciprocal

  • @planetclownfishbrain7052

    @planetclownfishbrain7052

    4 жыл бұрын

    This is just misdirection to prevent you from discovering the simulation sequence.Hint: Look for the subtle glitches.

  • @fitriiskandar3572
    @fitriiskandar35724 жыл бұрын

    is that the explaination why the sun always goes big and small all the time?

  • @JAMB685
    @JAMB6854 жыл бұрын

    What software and hardware do you use to make your videos?

  • @PhysicsHigh

    @PhysicsHigh

    4 жыл бұрын

    See my website under FAQ where I go through the equipment I use.

  • @lightuponlight5215
    @lightuponlight5215 Жыл бұрын

    Respect for Ptolemy

  • @sholaibukun1352
    @sholaibukun13522 жыл бұрын

    This is highly helpful. Such an explantion in 20 min. Thank you very much sir for such an outstanding explantion

  • @MrCoolSwimmer
    @MrCoolSwimmer3 жыл бұрын

    start at 6:00

  • @sastrykganti681
    @sastrykganti6812 жыл бұрын

    Very well explained, BUT it would have given me more knowlege with no sacrifice to you if you had moved the earth in ONLY the correct direction but not back and forth! every little bit from you adds to my knowledge.

  • @sascharurik527
    @sascharurik5274 жыл бұрын

    Magnificently said indeed.

  • @PhysicsHigh

    @PhysicsHigh

    4 жыл бұрын

    thankyou

  • @angusmcalister593
    @angusmcalister5932 жыл бұрын

    Thanks. Couldn't understand anything about Kepler's Third Law since all other videos just made things overly complicated, and now I do.

  • @jamestorreano3299
    @jamestorreano3299 Жыл бұрын

    When and how did the idea of "squaring" become so important in math?

  • @PhysicsHigh

    @PhysicsHigh

    Жыл бұрын

    Look up Emilie Du Châtelet

  • @cashchristian-im2lt
    @cashchristian-im2lt10 ай бұрын

    my brain hurts from watching this.

  • @bschoolofai
    @bschoolofai5 жыл бұрын

    13:45 Why is the velocity taken for a circular motion while it isn't circular but elliptical ?

  • @PhysicsHigh

    @PhysicsHigh

    5 жыл бұрын

    True, but the case of high school circle a good approximation.

  • @KINGERTADC_yay
    @KINGERTADC_yay2 жыл бұрын

    This is awesome it has helped me a lot with my AP work thanks PhysicsHigh. Keep on the good work

  • @PhysicsHigh

    @PhysicsHigh

    2 жыл бұрын

    Thanks. Glad it’s helped you in AP.