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Joshua Lee
เข้าร่วมเมื่อ 17 ส.ค. 2017
วีดีโอ
College Series: Johns Hopkins University
มุมมอง 30010 หลายเดือนก่อน
College Series: Johns Hopkins University
College Series: California Institute of Technology
มุมมอง 193ปีที่แล้ว
College Series: California Institute of Technology
Lagrangian Mechanics
มุมมอง 1.1Kปีที่แล้ว
This video introduces Lagrangian Mechanics and the concept of action.
Noether's Theorem
มุมมอง 1.5K2 ปีที่แล้ว
In this video, I discuss the underlying ideas behind my favorite theorem in all of science: Noether's Theorem.
De Broglie Wavelength
มุมมอง 2353 ปีที่แล้ว
This video introduces the De Broglie Wavelength and wave particle duality.
E=mc^2
มุมมอง 2573 ปีที่แล้ว
This video covers the equation e=mc^2, how to derive it, and some examples.
Viruses
มุมมอง 1563 ปีที่แล้ว
This video talks about viruses, how they replicate, and methods of preventing the spreading of viruses.
Time Travel
มุมมอง 1833 ปีที่แล้ว
This video introduces possible methods of time travel into the past and the future.
Acids and Bases
มุมมอง 894 ปีที่แล้ว
This video introduces the concepts of acids, bases, and the pH scale.
Breakthrough Junior Challenge 2020 - Joshua Lee
มุมมอง 4454 ปีที่แล้ว
Breakthrough Junior Challenge 2020 - Joshua Lee
Crazy seeing a video about my school. Just finished my first sem there.
100% expect you to study here.
Dope video bro
Thx. Sounds like Lots of fun+ Learning according to High Standard of education. Cheers🍻
진서 너무멋져
This video truly made it easier . Thank You 🙏❤️
Nice one
Thank you all your videos help me...
Hi & thx. to you. i have a question: is it possible to have the integrity of raumship ( based on metal & artificial matterials which is made of )in order to overcome the turbulance due to tranformaion from 0.5 Speed of Light to 0.9 V.
Thx alot. Somethings doesn´t add up in my mind as in @ 2:45 : you refer to Sun lost of weight every sec and it goes like this: - OUR Solar System, has caused Space / Time Curveture ( STC). These , on the otherhand are relater to the Mass of each & all of the Star & Planets. As a result : The Homoestasy of the System , which we use in our callculations let say One Yer equal to 365 day on Earth.Therefor : Losing Mass of Sun shuld affects the Solarsystem , needed to be corrected , perhaps exponentilly as going from Sun(max.) toward Pluto (min.).......But we don´t see any of that being investigatinged by Science Akademis. I appreciate your thought / followers on that.
It can be hard to believe that the Sun is losing 4 billion kgs of mass every second because it seems like a lot. But it's important to note that the Sun has a total mass of roughly 2*10^30 kgs. 4*10^9 kgs is practically negligible at that scale. And you are right that this affects the solar system. The Sun's gravity is actually getting weaker. However, because the loss of mass is so small, the rate of the Sun's gravity weakening is also practically negligible. If you're curious, here's an article that talks about this: www.forbes.com/sites/briankoberlein/2018/04/10/the-sun-is-losing-mass-and-getting-larger-at-the-same-time/?sh=36f354ad4ead
Thx. alot🍻
Well done 👍
Thx.🙂
I really enjoyed the video👍 *Nice channel*
👍👍 sadly quantum tunneling is also a limiting factor when creating smaller and smaller transistors :D
Thx. for sharing. The Conservation LAW of Energy(CLoE)is the Basic Law of Nature & being vertified by its own definition . The whole fabric of Space/Time depends upon it!!! @ 1: 06 you say : Redeuced-Frequency causes Redeuced-Energy , but you consider this Energy is negligable , vanished or gone. It is NOT SO. Than you asked yourself a bit later, ( 1: 10 ) about : where comt the Energy for the Dark - Maters!!? The Energy that you taught it´s vanished ------> is being transfered into some OTHER FORM of Energy (Due to CLoE ). It means : now we have the requiered Energy , which were scattered thru UNIVERSE , for Dark- Mater or for that matter " Anythingelse " who is Just being READY to be BORN NEU " LBNL: It misleads bc. of setting " The Boundary Layers " -----> if we investigating " Locally a Conversion Phenomen " , -----> Or " Outerly- Diversion one " 🙏
1. Although the conservation of energy seems very fundamental to our universe, Noether's theorem proves that it actually isn't. It only applies in systems that experience temporal symmetry (time translation symmetry). This means that in fields like GR, where space and time are dynamic, energy is not always conserved. 2. Yes, it is true that energy from cosmological redshift is simply lost, and not transformed into a different form. Since the light from stars and galaxies travel through a vacuum, there isn't anywhere for the energy to be dissipated into. Still, this loss of energy isn't enough to balance out the amount of energy that is created in the form of dark energy. Since the universe is expanding at an increasing rate, the rate at which dark energy is created is much greater than the rate at which energy is lost. This is why we say that there is a net energy gain in the universe. In fact, if you look at the chronology of the universe, we are currently living in a dark-energy-dominated era. I hope this answered any questions!
Well done. Emmy outshined both Einstein and Hilbert with this theorem.
Never thought of energy being lost due to cosmic redshift :) It makes sense though. Our universe is not invariant under time shift.
👍👍👍👍👍
진서 너무 멎지네
Thank you
Nice transitions
Damn thats some fire background music.
Epic
ay yo what
LMAO
I need help with black holes and the Einstein reset bridge, can we have a video on that two
owo*
btw im eunices friend and she asked me to do this, don't blame me ;-;
blame her
Awesome!!!
너무 멋져요!!!!!👍👍👍👍👍
Nice Job!!!!👍👍👍
Super!!!
PogU content as usual
Now this is the content I subscribed for PogU
Great content from the hype beast himself
Way to go josh
Daaaaaaaam
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