Thank goodness I found your channel. I have searched for someone who can explain waves in a way that I can actually understand and retain the information. Thank you so much. You’re an excellent teacher 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻❤️
Thanks. Earlier i just used to cram the meterial written in books. But your videos helped me imagine what actually physics is ! Thanks for your hardwork Lots and lots of love from india 🇮🇳
ธัญลักษณ์ คำดี เลขที่17 Hello, I'm a student from Thailand. Thanks for the lesson. Love u😚 To ครูเหนือ. วิดีโอนี้จำแนกประเภทของ คลื่นกล (Mechanical wave) แบ่งออกเป็น -transverse wave -longitudinal wave
Hi, what about waves in the ocean? As you said only the energy moves, but then, what are tsunamis? I understand that regular waves might just be periodic moving up and down from equilibrium. But the tsunami moves so much further than the shore. Thanks in advance
Iam from Pakistan province and belong to a desert area so I want to see your video demostrstion in my native voice over as they can easily understand physics because your videos are helpful May you give permission of it
how can we understand which types of waves something is, longitudinal or transverse? For example sound waves, how did one know that it is longitudinal?
Good question. For sound and light, it comes from the theoretical basis for how the waves propagate. For sound, it was Isaac Newton who tried to determine this. Air transmits changes in pressure a lot better than it transmits lateral shear forces. Solids can transmit transverse waves, but liquids and gasses can only transmit longitudinal waves due to lacking a capacity to carry shear loads like solids can. His contemporary, Robert Boyle had recently figured out the isothermal relationship between pressure and temperature. Newton predicted that such a relationship might govern the way sound transmits waves, and tried to use it to predict the speed of sound. He was on the right track, however, he was off by 20%, due to his incorrect assumption that sound waves were isothermal, and governed by P*V = constant. Laplace, who had updated information about the theory of ideal gasses, determined what Newton had missed, and why Newton had a 20% error. Laplace determined that an adiabatic process, where P*V^gamma = constant is the equation that applied instead. Since gamma for air = 1.4, the adiabatic index, and speed of sound is sqrt(gamma*R*T/M), you can see why not accounting for gamma would give a 20% errro. For light, you can thank the team behind Maxwell's equations (Gauss, Faraday, Lenz, Ampere, & Maxwell), along with Heaviside, Hertz, and Poynting. From the differential forms Ampere's law and Faraday's law within this group of equations, you can combine them together to get the wave equation governed by transients in the electric and magnetic fields. The construction of radio transmitters also corroborates that EM waves are transverse, as the oscillation of current in the antenna is perpendicular to the transmission direction.
Gravitational waves are on the frontier of physics, so it is difficult to use them as an introductory example. It is hard to visualize what exactly is waving in a gravitational wave, and gathering empirical evidence is extremely difficult. From what I understand about gravitational waves, I would consider them transverse. I'd call them hyper-transverse, since it takes a dimension beyond the three spacial dimensions + time, to explain what direction the fabric of space-time is waving within. Think of it as waving in and out of existence. You often see them depicted as z-direction transverse waves, propagating along 2-dimensional space in the x-y plane, but this is just a representation at reduced dimensions so the human mind can comprehend them
wave transfers energy from one position to others through a medium but how it's gonna work in space because there is nothing but vacuum means no medium.Can anybody explain how it's gonna work in space.
There are two different types of waves, mechanical and electromagnetic. The first one are what you described. The second one though are waves which can tranfer energy without needing a medium. That is how the move through space.
