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Ha love the disclaimer about your earth being spherical
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Where is the link to part 2? :/
This is the best explanation of resistors I have come across. Thank you.
Except with the case of audio, you aren't hearing the stepped waveform because filters are used to smooth the signal back into its "original" form. The better the filter circuits the closer the converted signal will be compared to the analog input signal.
Keep those slotcar videos coming!!
what design principles changed to allow us to take advantage of short wave frequencies better?
Did you put it back together?
As a former Amateur Radio Operator (Technician II), I really enjoyed this. I’ve made all sorts of antennas, but I never really understood the math behind what I was doing.
Split videos as you feel you need.
Amazing! What is that PCB design software?
Haha.. assume “your” earth is spherical in nature.
could this emulate apple 2?
learned something, so thanks.
Radiation is complicated. A static charge produces a field that is static. An uniformly moving charge produces a changing field which is non-radiating (it doesn't transfer power at infinity). An accelerated charge is able to radiate (transfer power at infinity). I do not fully understand this although I teach this at the UG level. I can follow the math but I still don't grasp the "why"!
Love it!
A superb video 5 stars - gets into the subject immediately and talks about it with minimum asides - well done!!
I wish you guys were around 55 years ago when I was trying to absorb the concept of divergence and curl after failing differential and integral several times 😢. (Not that I do now.)
your explanation is perfect
would be GREAT if you left links to the products you mentioned. Thanks for the great information!
Literally the first link in the description.
@@bald_engineer literally the first link points to another video.
@@donavonlewis1039No. It links to the element14 community, which has links to all of the products mentioned in the video.
My first guess on the the ML component would be for adjusting for individual movement patterns--for sensing things like flip-turns vs no flip-turns, or transitions between swimming, biking and running, things like that which can "look" very different from user to user. just a guess.
Great video. Nice to hear your ideas about the process!
Do your power supplies have feedback? Either way, your loaded voltage is more important than unloaded
Assuming earth is sphirical? Really? 😂
7:47 the finger tap to get busy 😂
This is super good
Where do photons fit into all of this? Does photon maths/physics ever need to be considered?
Photons are just the dualistic particle equivalent of an electromagnetic wave. So every physics in the vid is all about photons - just in the wave state.
@@SRJDPO that doesn’t really make sense. Photons are discrete unidirectional quanta. This video talks about omnidirectional propagating EM waves. I don’t see how the two can be drop in equivalents, which is why I’m asking the question. I want to understand what the relationship is and when you would use photon math instead of EM math.
@@br3nto lemme know what you find/ where you find those kind of details. curious
I would love to see a seismic surveying tool. I have lots of caves with no entrance exit, but could make one if I knew where to start digging.
Thanks for sharing, I still don't get it though. I'm not very educated in this area, but very curious.
I came across this in my suggested by youtube it is good but your discussions are too dense for someone that is new. Like feed point? Was that where you connect your wires to the antenna? I am keen to learn how to make an antenna and attach a custom length wire to improve my mobile data signal as the 4g modem router doesn't have direct line of sight in the house and would love to add an antenna outside on the fence and run a wire inside through the fly screen to the modem router.
I love your engineering approach to HAM radio. There is a lot of "just do this, and it'll work". Yeah, but WHY!?!?!
i'm interested to know how SDRs deal with digitally tuning without changing antenna length. Are they just more sensitive at some frequencies? or do they digitally change their length?
I can't help but feel disappointed in the presumptive rolling commentary on the Stadia controller; especially at the point of removing the face and dumping on the buttons when they're not only the exact same tech in the XBox controllers, they're better done and snappier with almost zero discernable rattle from simple actuation. I mean, I _get_ wanting mechanical switches, but rubber-dome buttons & carbon trace potentiometer is how it's been done for *DECADES,* so the expectation for someone as knowledgeable as you to have is otherwise kinda baffling haha. (Not at all excusing it, especially with the problems carbon trace potentiometers can easily get - just pointing out the overwhelming majority of use.) Not unless you just play a lot on Switch since I'm fairly certain those are the same metal dome switches (snapple cap? lol) used on all buttons - or at least I presume from handling the JoyCons and Pro Controller and loving it 😁
Very good vid 😊 Thank you ✊
8:13 small correction: an electric field can't exist without a _change_ in the magnetic field
Just wondering, though; about the case of a static electric charge?
@@LeoFreemanAUST I think, in that case, we have a sink or source of an electric field like an electron. However the electron has also a magnetic moment with an angular spin (i.e. also changing magnetic field) - however just guessing (I may be wrong)....
No, you don't say EM waves do not obey the wave equation. You say the wave equation describes the behaviour of EM waves.
Im an expert at building antennas by mistake when designing PCBs 😂😂
😂
Why not just explain what physical characteristics μ and ε are meant to account for: the stiffness and elasticity of the stuff em waves propagate through?
Can magnets increase performance of antenna ?
Haven't heard of any such phenomenon. The antenna's performance depends on whether there is an obstacle in between the transmit and receive antennas as it attenuates the EM wave and on the radiation pattern of the antenna. Some antenna radiate more EM waves in one direction, for example the dish antenna which connects to your TV and communicates with the satellite. In my opinion, a magnet placed very close to an antenna will disrupt the EM wave and you will get an even weaker signal from the antenna on your receiving device. But, that's just what I think would happen. I don't have any proof for it.
Please teach how its work a game atari tetris or another please 😊😊😊😊
You really didn't explain it in a way most people would understand. Try this: Radiation Antenna: As the electrons flow toward one pole of the antenna, electrons are flowing away from the other pole of the antenna. Although there is no electrical connection between the poles of the antenna itself, there is an "electromagnetic" connection and the Amplifier "driving" the antenna "thinks" there is a connection, so it thinks current is flowing (which it is but not by direct electron flow). It's sort like of how a capacitors allow AC to pass through even though there is no electrical connection between the two leads - But that is electrostic fields. Now, because current is flowing through the antenna, a magnetic field builds up perpendicular to the poles. So, as the electrons start to flow from 0 to max, the electric fields builds with the poles as the magnetic field builds across the poles, then as the electron flows from max to 0, the two fields diminish. Then the polarity changes and the electrons flow into the other pole while electrons flow out of the other pole. This cause the fields to reverse. As the current flipps back and forth (alternates current AC), so to the fields. This causes them to move away from the antenna as energy being "radiated" as an electromagnetic wave. Think of this. A circuit has to have a send and return path for current to flow, at the other end is a load (where electrons do their work, say convert to heat). If we design our circuit wires properly, the energy flow into the load will be optimal and thus max energy transfer. We call this impedance mating, if the driver, wires (transmission lines), and load all have the same impedance, the max energy will transfer. That's what antennas do, the impedance match the driver, transmission line, and the antenna itself to free space (air on earth). What is key about electromagnetic (EM) waves is, once an antenna converts electron flow into a radiated electromagnetic wave, no return path to the receiver is needed, that EM wave will then couple into the receiving antenna and cause electrons to flow back and forth in it, but at a much less strength (magnitude). Just like light diminishes by the inverse square law, so do propagating EM waves. Why the connection? Light propogates as an EM too, just much higher frequencies than radio waves.
Gotta love Hypershock !!
I'm a retired teacher, but occasionally I teach telecom. Can I use your material, as long as it obviously cites its authorship? 
hi, can you send me the schematic of that board?
I like how there's a random "how to cook everything" book just sitting there
Love the HyperShock crew
Thank you for explaining so well. God bless you!
RF is all cool till you get to my house and then it falls apart.. lol radio radio don't work
Bot? RC car really.
I am not sure where the line is. I think if it had tracks instead of rubber wheels, that would be enough it to be a 'bot' for me.
This was great. What is the best way to study and then take the test for my Technician license?