Kepler’s Second Law of Motion - Equal Area in Equal Time (Astronomy)
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- Опубліковано 9 лип 2024
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✵✵✵✵✵ Kepler's Second Law of Motion
EQUAL AREA IN EQUAL TIME (Astronomy)
Kepler’s First Law states simply that Mars travels in an elliptical orbit, with the Sun at one focus of the ellipse. Although he chose to list it first, Kepler only came to this conclusion after figuring out his "second" law, which says that if you draw a line from the Sun to Mars, and wait a fixed amount of time, that line will sweep out a certain area as Mars moves along its orbit. This finding was generalized to include all planets in 1621.
✵✵✵✵✵ CHAPTERS
You can jump to chapters in the video here:
0:00 Introduction - Kepler and Tycho Brahe
0:50 The first law came after the second!
1:02 Visualizing the Second Law
2:40 Connection with Conservation of Angular Momentum
We have videos for all 3 laws!
Kepler's 1st Law: bit.ly/1XCVRSQ
Kepler's 2nd Law:bit.ly/1lzhLVQ
Kepler's 3rd Law: bit.ly/1MZ35bR
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Presented by Liliana De Castro
Written by Meg Rosenburg and Kimberly Hatch Harrison
Produced by Kimberly Hatch Harrison & Michael Harrison
#Astronomy #Kepler #KeplersSecondLaw - Наука та технологія
I can't understand how this amazing editing and unique science videos have too few views..
Damian Rene That's what I was thinking. There's clearly a studio and some sort of professional animator using software that might have cost a pretty penny. It's not just a marker on a white board. I'm surprised there are so few views. There's no way she's making a profit off the ad revenue; at most breaking even.
@@thegoodlydragon7452 It's very well made. I wish it was more popular. She's an excellent speaker, and judging by her hands, she's part Italian.
@@hopeastrays lol I have to watch this for a class.
@@thegoodlydragon7452 200k views now, I'm glad to see it picked up. But I only found and watched this video because I want to understand more about Kepler law when studying my physic class.
Better than wasting hours in the textbook
Made my Day
Hours in your textbook are not wasted. They help you in a different way and provide practice problems. Videos help condense the information and make it more approachable. If you go back to the textbook after watching the video, it will make more sense to you and help solidify your knowledge.
Hi
I'm taking an Astronomy course and it is quite difficult for me to understand certain topics but your videos make it much simpler and easy to understand the lectures. Thank You!!!
+Sarai Flores That is wonderful to hear! Thank you for watching, and good luck with your course! :)
Sarai, which course are you taking? I have to take one as well
thanks for making astronomy videos guys, I really loved this one :D
What I am puzzled by is how he measured the area covered in specific amounts of time while covering specific distances..because calculus was only invented by Newton who was definitely born about 90 years after Kepler
you don't need calculus to compute the area of a triangle.
in classic geometry A = h * b / 2
or in terms of linear algebra A = ||a x b|| / 2
I'm really enjoying your videos! Keep up the great work! :)
THANK YOU SO MUCH!!!!!!. YOU HAVE JUST SUMMARIZED THE WHOLE LAW FOR ME TO UNDERSTAND.
Welcome to Socratica! We make beautiful educational videos to help you learn MORE. We encourage you to visit our website for extra goodies: www.socratica.com/
Special hello to teachers and students during the covid pandemic. Hang in there! 💜🦉
PS Teachers, please do not film yourself playing this video and then upload that to UA-cam. That's a copyright violation. We encourage you to SHARE our video with your students using the SHARE link. Bonus - that keeps us in business so we can keep making videos for you. Thank you.
I love what you did to Kepler Eyes! It scared me at first moment! : D
It's 2020 and your videos are helping me so much , thanks :D
Socratica videos are really helpful!
Such a brilliant explanation! Wonderful video as always. Keep up the good work guys!
Thank you for making these videos
Great explanation !!!
thank you! this is the only video that actually helped me understand the 2nd law
This is great ! Thank you !
Thanks! Your presentation is excellent !
Thank you!
First time seeing videos of this chanmel seems very interesting subscribed !
that is masterpiece!! thank you
The background music, the narration and animations are enough for people not at all interested in Astronomy( flat earth society) would even binge watch this series.
Coming to my second point: They are so binge worthy!!
Once again, brilliantly explained.. with the perihelion & aphelion. Definitely going to help my students understand better
thank you!
☆。★。☆。★ ANNOUNCING - SOCRATICA ASTRONOMY REBOOT! We're writing, filming, & editing new videos now. Add your name to our stellar email list so we can notify you when they go live: snu.socratica.com/astronomy ☆。★。☆。★
Thank you for making scene I have to write a easy on this and it helps a lot
Thanks! Everyone is really awesome!
Thank you a lot . It's really very helpful video for us .
Thank you so much.
Thank you for the explanation!
wow thank you!
Nice!
Great explanation
This is so helpful! Textbooks word things so complicated. Thanks for making these concepts easy to digest and understand 🙌
This is so wonderful to read. We're so glad you found our video helpful! 💜🦉
Your explaining method is very good . Thanks for your video
Greatly explain
great explanation
Thank you. Your videos are really helpful.
I don't imagine that physics can be this easy and simple in such a story way ;)
+Shams Drawings Physics videos are going to be a fun challenge! We hope to do a physics playlist next year. :)
Extremely helpful mam.. Thank you so much
I finally understand. Thanks so much,
superb explanation.
did u saw that both the eyes of keplers and bronche were moving
hehe we hoped someone would find that! :)
it is
yeah you are right , but I thought I'm the only one to see.
Yep
yes ..i thougth in the begining mine having prob.
I've watched this video in Portuguese and in English! I love it. Thank you :')
The channel explains the laws and phenomenas so well. It sucks that it has so less views.
Great video. Greetings from Mexico.
beautiful explaination 🧡💛💚💛🧡❤🧡
a million times love for this best explaination
This video is great! I'm subscribing definitely :) Keep up the good work!!!
nice explaination
thanks for helping me with understanding this law for school
Are you taught Kepler's law in high shool ? We don't 😭😭😭😢😢😥
hey. im from Brazil and i have a big test coming up, and this helped me a lot. thank you so much
I love the music in the beginning, when it was zooming out in space! Where did you get it? I am wanting to animate and make films, and I can't really find the perfect audio... ~ 𝒮𝒽𝓎𝐹𝑜𝓍
Thank you mam.
Nice
very good vedio
nice
Thank mem
Greetings from Turkey. Science is only thing that can guide us to truth and peace.
This is the best educational video series I've ever come across. Just outstanding.
We're so glad you've found our videos! Thank you for watching and for your very kind comment. :)
Ray Walker I agree! I've searched far on the Internet for a clear explanation for kepler's laws and so happy I found this!
Thanks mam
it's ultimate video :-) could u tell me about how does a satellite work for a particular region or area? if u have any video regarding this upload it..
The angle covered in unit time would vary, as seasons change over shortened transition periods.
Can u upload video on wave optics ?
Where did you get the background music?
It is really very helpfu u have seriously done a very great work!!! Thank you :D #socratica
Thanks, your all videos are very helpful for my study.please explain (Newton's law of gravitation)
Thanks for keeping my brain thinking. 😀
This is Great; I watched it many time .. it's very important to my specific research .. I hope you make such a video for the third law- I am a greedy !- ..any way thank you and I highly appreciate this
Waw nice leacture
From. Bangladesh tnx a lot
At 2:22 , Socratica said constant velocity , It should be constant speed because direction of the planet is changing every second
mind is blown
Why do their eyes move around? 0______0
1:04 I don't get why there are 2 lines pointig to the Sun. It says if you draw "a line", which is the line from the Sun to Mars, there should only by 1 line, but I see there are 2.
How is velocity constant in a circular motion what about the tangential acceleration??
Man I've started loving physics 😋😝😝♥️
Ma'am I am Shinjini Ghosh from India. This video is very helpful. But I as I was going through my text book I had a problem. I am a student of class 9. In my book it is written that
Gravitational force between two bodies act as action reaction pair . But my question is that when we draw the free body diagram of a body we always give the gravitational force downwards. In my book it is written that the force required by a planet to move around the sun in elliptical path is provided by the gravitational force of attraction between the planet and the sun . How is this possible?? I would be very grateful if you could explain this to me.
the part where the demonstration actually starts and it's written kepler's second law.. the music which is played, is it from a movie? I think it is.. If anyone finds out please tell
Smart man. To me this is a big a discovery as special or general relativity.
In the illustration the Area is the largest when Mars is up and down, and quite small when it is close to the Sun.
finally calculus making sense thanks to the elliptical orbit of Mars!
what softwere you use to animate and vizulization pls pls tell mee?
We mainly use the Adobe suite of software - Premiere and After Effects. We're self-taught filmmakers so we are still learning!
I have a question, Does the elliptical orbit have an effect on the seasons on earth (as in the earth is closer to the sun at one end of the orbit than at the other) or is the eccentricity so small that the effect is negligible?
This is such an interesting question! Because the Earth's orbit is not very eccentric, the effect is probably negligible. But the degree of eccentricity changes over time - from almost circular to more dramatically eccentric. So during those more extreme times, it's possible that there would be more of an observable effect.
Does this apply for all planets that travel elliptical paths?
This is just one of those significant laws in astronomy
It would be really cool if there was a derivation of the equal area in equal time law.
Imagines the genius of those people
Is that StarGate's Theme?? I'm almost sure it is... great show... even though the science changes all the time xD
How Kepler's 2nd law is based on conservation of angular momentum please explain in brief.
I’m doing this for my project and i done watch it like 6 times but is still confused
Maybe just a coincidence that speed also seems to increase going into sharper turn of ellipse revolution just like driving your car into a sharper turn,.
Getting some Star Trek vibes from these vids. Very informative!
Love you and your video I am from India .. i love the things going easy to me please reply me.... That you will make a video on fluid in physic
Who else is here NOT for school?
Me
Hehe yeah, I'm reading "cosmos" and couldn't quite picture the second law in my head the way Sagan describes it..
Hey
If I gave you an elliptical pizza, would you be able to slice it into equal areas from one of the focal points?
I've never fully come to terms with this law. Did Kepler start out by somehow observing that the areas swept out
indicate the changing distance? That can't be, since in order to determine the area one must already know the
distances. So,did he arrive at equal area first, and then arrive at the conclusion that a planet must change speed?
This seems specious, since changes in speed of a planet are easily observable against the background stars.
Aren't the crucial points the changing speed and the changing distance? What good is it to know anything about area?
How did knowing the area swept out serve Kepler? It seems to me that in order to determine the change in distance,
and the change in speed of a planet, area is superfluous. And if you suggest that you must know the area in order to
calculate speed or distance, I will ask how and why?
Yeah, the area explanation makes no sense. Btw. if an orbit was eliptical, the farther the object went the slower it would appear to move in the sky on top of it actually moving slower. All the area-time jargon is unnecessarily complicating things.
Mr. DeLeo Rocks
What is the purpose of kepler's third law?
umm where did the second mars come from ??
Brilliant ..so 1st law is geometric ... 2nd is 'dynamical'. I never realised that.
I want to prove 2nd Kepler's law to my students without using math, but I couldn't find anything online :-( Your animation is very helpful though, so I'll show it to the class. Thank you!
+Mau Jo We're so glad you are finding our videos helpful! We are working on Kepler's 3rd law right now, so hopefully that will come in handy as well! Thanks for watching and commenting, and thanks so much for sharing with your students! :)
Without using maths... Good luck
I couldn't pay attention to the video on first viewing because I was too preoccupied with whether or not I was hallucinating the subtle movements of the paintings of Kepler and Brahe. Speaking of physical laws, Tycho's mustache seems to violate a few of them.
Very nice .i am Indian