Dope Tech Episode 2

<<@anmolsrivastava1206 says : Team captain vs team iron man ,I am on science side ,but I don't understand it ,so keep explaining>> <<@johnharriott7878 says : I have trouble understanding the explanation. Consider the following configuration. Two light bulbs A and B mounted touching together on a table. A is on the left, B is on the right. A is connected to a 10V battery Ax 1m to the right of B. B is connected to a 5V battery Bx 1m to the left of A. In order for the field to travel from Ax to A it must pass thru B. Same deal for B and Bx. By the explanation given it would suggest each bulb is subject to energy transferred from both batteries and therefore have similar brightness? This is not the case. Bulb A will have twice the brightness if brightness is proportional to battery voltage. I would also like someone to describe how all this works with a circuit consisting of resistors, capacitors, transistors etc.>> <<@bhindi says : Want to know how this affects moores law>> <<@alexanderquilty5705 says : ANSYS is an awesome software that I wish I have had the experience to use. Apparently it is popular for EMC designers in the PCB world.>> <<@samlikestrains8040 says : I am confused about the impedance calculations of the wires. Impedance is complex, consisting of both resistance and reactance. Reactance being both capacitive and inductive reactance. So the impedance solution would yield both a real resistive component and an imaginary reactive component. Is the value of 550 shown the magnitude being the square root of the sum of the squared resistive and reactive components? What about the phase angle contributions in this long loop due to the change in parasitic capacitance? You cannot necessarily claim that all these values are constant throughout. Also consider the capacitance between the switch contacts. This gets complex though because you are using DC and not AC. But the question is not in the DC steady state and is focusing on the transient response in DC.>> <<@velkin012velious3 says : does oscillating fields come from the ground or porous material in general? is there a difference?>> <<@pierrevade2328 says : I looked at this video and the 1st one around 10x each. I have a master degree in organic chemistry and a good understanding of physics, but I still don't understand anything. I accept the results, but since I was a kid, I try to follow what Einstein said, "If you can't explain it simply, you don't understand it well enough", and to be honnest, I feel like none of you (even people criticizing the 1st video) really understand what you are talking about....>> <<@conniepr says : If you took the battery out of your phone, then I'd still be able to hear you? @Veritasium>> <<@kvcreations2020 says : What do you mean in here 13:26 by saying that the bulb will turn on even if the circuit is breaked is it possible>> <<@Abodd93 says : 13:33 Then why doesn't lights all over my house turn on when I press 1 single lightswitch? 13:33>> <<@camilofuentespena7348 says : This is Sheldon vs Kripke in real life. 😎 Joking aside, this is super interesting and at the same time complicated. I didn't understand almost anything, but Veritasium calls for re-studying physics, even if it is a high school version! That, not even the Nobel Prize winners have achieved it.>> <<@boriskom51 says : It's called free energy, they don't want you to know😊>> <<@CostelloDamian says : Humans: "current flow, me like". Meanwhile AI is taking over the world 😂>> <<@SPHYNX99752 says : I would be interested to see this experiment done with the same voltage but with a variable frequency instead of 60HZ like maybe a few terahertz or petahertz.>> <<@SPHYNX99752 says : It seems to me that the electromagnetic field creates the tracks that the electrons can follow in an organized fashion. 🤔🤷‍♂️>> <<@evasivecookiv5870 says : Wired should get this man a slot.>> <<@maddalakrishnavamsi2491 says : And for second, It reminded Tesla a lot in the middle and obviously i know the Limitations,flaws, potential hazards and stuff about the model and anyway it's a different debate altogether.>> <<@maddalakrishnavamsi2491 says : Now this is really something great And obviously appreciable more than what is being But this very topic and concept it can't be either convinced or understood totally in a single video as itself it is way subtle and intriguingly doubt provoking as just presence and availability of many appliances and transmissions around almost everyone.>> <<@softlution2 says : Correct me if I am wrong. In a closed circuit, an overall electric field is established within the conductor, influencing the atomic-level electric fields almost at the speed of light. This orchestrates the flow of electrons toward the positive terminal. If this field is altered by factors such as temperature or magnetic fields, the flow of electrons will be affected as well.>> <<@gio5969 says : Thus antennas work?>> <<@sjoerd1239 says : This video does not demonstrate the Poynting vector. It shows a current induced on the load side and it uses Maxwell's equations.>> <<@markmccollum6476 says : Did you know that many Universities (in the United States) have eliminated most course requirements for Maxwell's Equations classes? One can graduate from Electrical and Computer Engineering without a class focused on Maxwell's equations or Transmission Lines or Remote Sensing. Also can graduate in Electrical and Computer Engineering without a class in semiconductor device physics. So there is now a huge demand for Electromagnetics and Semiconductors and Software. But the only one of the three that tends to be required in engineering curriculum in the US is software. So maybe we might think about demanding of our accreditors of institutions of higher learning - that we stop making college easy and start making it sensible. I am not sure this shortfall in teaching important information can be made up for by giving money to dying companies through the chips act or forgiving student debt for college that did not pay for itself in the value of the learning.>> <<@johnboy2776 says : What’s 2+2 … yep I’m smart>> <<@JIMMYPANTELLERIA says : No! The answer is 0 seconds, no passage of time. Quantum Electrodynamics. When the battery becomes an emitter of photons quantum tells us that there is a probability (however small) that a photon travels to the lightbulb, releasing its energy with no passage of time. You are using field equations and wave theory to discuss light which is purely quantum. Light is always a particle and Never a wave! This has been known since the 1970s and is why Richard Feynman was famous. If the photon had enough energy it would instantly light up the bulb even if the bulb wasn't in the circuit! Photons do whatever they want. It's not spooky action at a distance, it's quantum. You are attempting to link Einstien and quantum which is what we are all working on without success.>> <<@ngonidzashemwanjira208 says : Honestly. Thank this guy for highlighting this. Last year when I was getting into Electronics. I was convinced that there was something awkward about the explanations of how electricity actually worked in relation to the circuits.>> <<@summumbonum6579 says : Wrong title “How Battey works “.>> <<@summumbonum5966 says : If it doesn’t make sense it may be false..>> <<@SummumBonum-rm2fi says : This is Narcissistic dude . Doesn’t make sense will spin you around to make him right.>> <<@enderg4mer495 says : If copper wire sells for $0.22 per foot, it would take over $216,000,00 to order a light second of wire>> <<@jaykay308 says : is it possible to use gas to substitute wire, so we can see how the electron moves? lol>> <<@rabb1tjones921 says : Good job.>> <<@Dan8254 says : Still too confusing for me 😢>> <<@Squashplayer70 says : Scientists VS Engineers>> <<@behsq125 says : The first video was in no way a mistake, I immediately understood the point right there. I think that those who did not understand or did not wanted to understand were not able to appreciate the effort of abstraction that you proposed, and which was necessary to pose the problem. Their failure was ironically beneficial, prompting the second video, which expounded on the subject in greater details, making the explanation and illustration even better. So yes, everything could have been in the first video, but there is sincerely nothing to apologize for trying to shed light on the subject. It was the best explanation I saw that far. The work and content of the first video was already very good, and the response given to easy criticism by the second is of exemplary dignity, honesty and rigor. For all this, I sincerely thank you.>> <<@charlesterrizzi8311 says : Follow up question: why do we get shocked on the hot and not(usually) the neutral in a circuit?>> <<@DharmendraKumar-fp1qr says : 7:31 young steve smith the aussie cricketer>> <<@d.g.1986 says : Thumbs up if your backpack in HS had wheels on it...>> <<@sherwinganpatt2560 says : Wow thank you for this incredible lesson!>> <<@josecalneto6612 says : this is one of the best videos I've ever seen.>> <<@mysoresrinivas5424 says : In one of your videos you claim that a stationary charge near a wire does not experience any force when current flows in the wire. In this video you show that the electric field in the wire is a result of surface charges meaning there is electric field outside the wire and if so why doesn’t a stationary charge experience any force? What am I missing?>> <<@MrDankDro says : Being an electrician, I use the lumped together stuff all the time. You have to, you have a job to do and it gets things done. But I've also done plenty dealing with Eddy current and working near high voltage transmission lines and never thought it was a debate in understanding it's the electrical field carrying 'current'. If not, then how would a voltage ticker be to detect current through non-conductive materials. Lol But I'm also a nerd and most people I work with don't get it because they don't care>> <<@RupaDubey-ep2mf says : So can we light a bulb by just bringing it near the battery of a circuit similar to the bulb connected in the circuit>> <<@Katia413 says : You inadvertently gave the best explanation for inrush current!>> <<@michaelcole506 says : So both the shepherd’s and the sheepdogs’ commands are communicating at the speed of light? And the movement of the sheep (while slow) generates the thermal energy to heat up the bulb’s filament? Would this mean that it’s not how far or how fast the sheep (electrons) move, but how fast they are receiving the commands of the sheepdogs (electric field)?>> <<@JohnTovar-ks8dp says : You tell em. I've noticed textbooks tend to do a poor job. Maybe we need cash prize awards for them.>> <<@Isthisrealorno says : It’s just trying to dissipate. More load more stored energy ready to dissipate. Spinning magnets and a key on a kite.>> <<@Isthisrealorno says : The wires are not separate from the power supply. Neither are loads when connected>> <<@daveco1st says : Scientists arguing is always the best😂>> <<@EverybodysDarling says : As a consumer in this field I can say I’m too dumb 🤷🏻‍♂️>> <<@terryeaster1 says : That is so incredible bizarre, interesting, and so very cool!!!>>