Watching the B-1 Lancer dropping bombs while going supersonic got me curious about the math behind the trajectory. Thanks for the video!
@junfourАй бұрын
Wow, you could teach this in kindergarten, it's so simple and beautiful!
@maaarx1158Ай бұрын
Great explanation, but how do you prove that theta prime 2 = theta 2? I cant seem to find an angle that adds to both to equal them to 90 degrees
@matthewjohnson2554Ай бұрын
@@maaarx1158 Hi, it’s similar to how you show that theta1 prime = theta 1. You can just use, say, B as the angle between the second theta2 I drew and the horizontal line, and you know they have to add up to 90 degrees. Also you can also see that B + theta2 prime +the 90 degree corner must = 180 for a triangle. Therefore theta2 prime + B = 90, therefore theta2 prime = theta2.
@leo3.14Ай бұрын
one of the best videos .. i ever seen in my life genius 👌🌹
@leo3.14Ай бұрын
🌹
@matthewjohnson2554Ай бұрын
@@leo3.14 you had mentioned something about us being called to adventure in this life and yes I agree, just like Abraham was called out of his country and father’s house to embark on an adventure to receive God’s blessing and promise.
@leo3.14Ай бұрын
🌹👌
@devonstrader9972Ай бұрын
Thank you so much! So helpful and you make it easy to understand
@jenspi4725Ай бұрын
Good explanation, thanks.
@pokpikchanАй бұрын
wow very cool
@stefangrozdanovic49082 ай бұрын
4 years of university study explained in a 8 minute video. Bravo sir!!
@matthewjohnson25542 ай бұрын
@@stefangrozdanovic4908 thanks my man
@aungkyawmoe80232 ай бұрын
isn't this low pass filter?
@dhanushkumar.r11752 ай бұрын
Awesome explanation, thank you 🎉
@blockstarpluto78012 ай бұрын
Proof on my tik tok and my facebook page
@blockstarpluto78012 ай бұрын
In 2026 the world will be exactly 6000 years I think in 2026 on trumpet day tishri 1st Yahusha hamashiach coming back to put his 1000 year reign on earth. I got proof on my page Adam was created in 4004bc Yahusha was born in 30bc/0Ad Yahusha died in 33ad Right now we in 2024 ad Yahusha died 1991 years ago on cross Yahusha was born 2024 years ago in 1 Ad 30 bc
@blockstarpluto78012 ай бұрын
33 ad is right
@adosar72612 ай бұрын
Correct me if I am wrong, but the video DOES NOT elaborate further the dot product intuition introduced in 3b1b video right?
@matthewjohnson25542 ай бұрын
I discuss the dot product a little bit at the 2:19 mark.
@Umitto3 ай бұрын
excellent explanation
@mejiqal3 ай бұрын
smart people should ask this in low pass filter in order to understand why his explantion is wrong* : 1. the capcitor is fully charged when the input frequency is low like 20hz, ok and simple to understand, nothing complex... then 2. when frequency input is very high like 500hz then the capcitor just dont fully charged but way less because of the speed of the input frequency...mean the capacitor start to charge him self and suddnely the source go off state, hence not fully charged, in different words.... which mean according to his explantion in the first situation the capcitor is fully charged and in the second example the capcitor is just dont fully charged lets say half.....ok up to this point everything is simple to understand...here the problem comes.... then someone smart ask but hi, the frequency stay the same its just the capcitor dont charged fully and the output of the capcitor also the same charge he charged... then how the hell its filter high frequencies ?????? low pass filter mean this...for example the input is 1000 hertz(1khz) mean 1000 cycles per second and after it pass the circut its 200 hertz, mean 200 cycles per second, mean less cycles per second...which mean ......that the capcitor dont charged every time but miss alot of the cycles and hence the output its lower frequency...other wise according to his explantion you dont filter out frequencies...but just output half the input, but frequency is the same
@mejiqal3 ай бұрын
the resisitor is just constant suck in electrons and output them as heat.....
@jetlinux3 ай бұрын
Fun and instructive.
@EmpyreanLightASMR3 ай бұрын
5:45 k hat literally appears out of nowhere. is it meant to represent the tangent at any point on the line?
@matthewjohnson25543 ай бұрын
Yeah that did magically appear out of my k-hat. Don’t have an immediate answer for you as I’m not teaching anymore. I’d like to get back to you later though.
@EmpyreanLightASMR3 ай бұрын
@@matthewjohnson2554 ok, that sounds good. likewise, if I find an appropriate answer, I'll reply back here, too. Thank you so much, and fantastic video.
@EmpyreanLightASMR3 ай бұрын
@@matthewjohnson2554 I found in my textbook (Briggs 3rd ed.) p 1108, *k* is the z-axis unit vector = <0,0,1>, and to find a unit vector *n* in the xy-plane normal to C and orthogonal to *T* (unit tangent vector I think) and *k* , then *n* = *T* x *k* (cross product) Maybe this is what's going on.
@matthewjohnson25543 ай бұрын
@@EmpyreanLightASMR Hey so the k hat is there to specify that the curl of a vector field in the x,y plane would be defined in the perpendicular z plane. If you prefer to ignore the k-hat that’s fine. The explanation I’m giving doesn’t really depend on the k-hat, it just specifies the curl is technically in the z direction.
@tarungarg153 ай бұрын
One of the best explanation.
@leepatrick17564 ай бұрын
Thanks. That is beautifully clear!!
@divyeshvegad81264 ай бұрын
That was very good explanation. i can see how much you have work hard to explain and did good work out of brain
@lilnoodz4 ай бұрын
you have 12 likes on this video :D
@matthewjohnson25544 ай бұрын
Perfect, now I just need to lock the likes, 13th would be bad luck!
@notaras19854 ай бұрын
Or you can have a mosfet acting as a switch right?
@landonzafiropoulo55104 ай бұрын
Omg thank you so much you don't know how many videos I watched and this one just clicked
@benfoxsmith5 ай бұрын
Brilliant!
@papess6905 ай бұрын
You are a star!
@MortyYT5 ай бұрын
great video man
@Atheistic0075 ай бұрын
Thanks!
@malikjavadov3666 ай бұрын
very good! thanks
@singingloverbyayush62346 ай бұрын
sir actually its not clear that which one is thita2prime can you please just state it
@matthewjohnson2554Ай бұрын
@@singingloverbyayush6234 hi if you see my explanation on the comment above maybe that helps.
@vl2926 ай бұрын
Thank you for the tutorial, it was helpful!
@hardikjain-brb6 ай бұрын
nice
@collinsk87546 ай бұрын
Great tutorial! 👏👏
@dennisbor-iq9lp6 ай бұрын
Very clear
@patrickmulumba55477 ай бұрын
Best explanation so far
@ElectricalEngineeringApp7 ай бұрын
Thanks sir
@FVDaudio7 ай бұрын
✨✨👌🏻👌🏻
@herogeorge60507 ай бұрын
You just opened my eyes, thanks so much man
@sergiomendoza46607 ай бұрын
were you being held at gun point??
@matthewjohnson25547 ай бұрын
Nope, why?
@christianm28577 ай бұрын
Great explaination! Additionaly it would have been interesting to change the value of the resistor. My question I ask myself is: which frequency should I set the filter for a DC Signal to filter out noise on the ADC input of my esp8266. Can it be too low? Ist it better to use a big resistor or a big capacitor to get a specific frequency?
@ARMIN7679A8 ай бұрын
awesome,but how does compression work with light if electromagnetic waves do not need any particle to propagate?i mean how do we see this effect with electromagnetic waves?
@matthewjohnson25548 ай бұрын
The Doppler effect is based only on the speed and the wavelength of the wave. I suppose though it would also be dependent on how fast the wave travels. Sounds travels at a certain speed through air just like light travels at a certain speed depending on the index of refraction.
@premiere36109 ай бұрын
Wow very good explanantion
@user-eg1zw3ky4s9 ай бұрын
hello sir , first thank you very much for you're amazing explanation but i have a question. shouldn't the capacitor by connected directedly to the ac source ? and the resistor in parallel with the output?