Math and Physics of the Everyday
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- เผยแพร่เมื่อ 19 มิ.ย. 2024
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Thanks to everyone who voted on this video topic in the community tab! For those whose vote didn't win I will try to get everything that I can (priority will be on 'mathematics of astronomy/astrophysics' though). Enjoy!
Are you a engineering?
Yes I studied engineering
In kleppner was a task, where rock was thrown from a peak of hill which slopes downward uniformly at angle a. For maximum range, angle was pi/4-a/2
Hiw did you animate. It was good.
@@wenslo8514and 🎉n nmj😂njk😅 much 😅n😂jimk 2Jimi m 2:48 v 2:56 s
Can we take a moment to recognize that this guy has never clickbaited us
yes. in a sea of clickbaits sometimes we find an island of awesome content
Recognised 😊
I wanna ask something cuz i rly dont get it
4:45
1st, how do we know which distance we should chose between two points?
Like, how do we find the correct angle of the line?
In this example to me it looked like the bike lenght was assumed beforehand, and then that lenght was used to find out the direction.
Sure tho we can assume about how long it is based on the fact that bikes tend to be made within a small range of lenghts
But then 2nd
Why wouldnt you find the same going the other way?
If the line fits in one direction than it would fit in the other since its the same lenght between the two wheels no matter which direction the front tire is facing
Idk, i assume im missing something, but it really doesent make sence to me why you wouldnt be able to fit a same line of the same lenght all through out the two bike tracks.
If anyone can explain this to me, i would greatly apreciate it
Ill tell you a joke in return
Idk what else i can do on here to pay ya back( maybe a story, or a concept, as you like)
Have a good day
I took a physics section in one of my classes (I'm taking forensic science in undergrad),and physics is used in accident reconstruction, mass shooting/sniper scenarios, blood spatter analysis, etc. Very useful
OdiumOdyssey Physics and math are used in almost everything in life!!! It’s fascinating!
Im an emergency room RN and its also used in trauma medicine when we consider the mechanism of injury, the trauma surgeon considers the physical properties of involved tissues and the forces of their injury in predicting possible injuries (i.e. bones may withstand compression well but react less well to torsion)
I cant figure this out, so im sending people the same coment question with hope to get an answer
4:45
1st, how do we know which distance we should chose between two points?
Like, how do we find the correct angle of the line?
In this example to me it looked like the bike lenght was assumed beforehand, and then that lenght was used to find out the direction.
Sure tho we can assume about how long it is based on the fact that bikes tend to be made within a small range of lenghts
But then 2nd
Why wouldnt you find the same going the other way?
If the line fits in one direction than it would fit in the other since its the same lenght between the two wheels no matter which direction the front tire is facing
Idk, i assume im missing something, but it really doesent make sence to me why you wouldnt be able to fit a same line of the same lenght all through out the two bike tracks.
If anyone can explain this to me, i would greatly apreciate it
Ill tell you a joke in return
Idk what else i can do on here to pay ya back( maybe a story, or a concept, as you like)
Have a good day
Majoring in Engineering is tough, but it’s videos like yours that remind me of the fun in the science and math behind it.
This is why am in love with mathematics 😎😎😎✌🏾
I love maths too:D
Math is magical
Love???
More like addiction. I am bad at a lot subjects not related to math because of my addiction.
You're in love with it, cause it is reliable...
Let's be honest here...
@@Super_Smash_Dude same I love math
love seeing math and physics concepts applied to the real world. makes it more interesting!
The unicycle murders
That was excellent
I am an aspiriing mathematician and trust me... i love your channel
The amount of information in your videos and the practical applicability of it is absolutely beyond anything I have experienced on TH-cam and I would like to think I have delved pretty deep in my endeavors...
For me personally this is one of the greatest formats I have had the pleasure of learning from because you spend just the right amount of time on each topic where it's kind of rapid fire but I can comprehend everything clearly in real time so I am able to focus intently without having to think about something and having my mind wander and miss a piece of information...
I like the way your brain works and I truly appreciate the time and effort you are putting into presenting these.
I always love reading coments like this one, because they give me a sence of hope for the human race
Id like to think that most of us have something which we are fascinated in, and some person or people who we apreciate without any pretence, without any jelousy or envy, even if we sometimes might disaguree, but instead filled with curiosity to learn from one another
Im sure he would apreciate reading this if he did read it
Coments like this are proof that there are people in the coments who treat other people like actual humans instead of just abstract messages without a source, because it feels like most coments i see in general are written by people who at that moment fail to recognise that they are writing to an actual human beeing with feelings and other opinions besides the ones outlined and so on
Anyway
Have a nice day
@MalkuthEmperor ya kno looking back at this comment 5 years later it feels just a little silly because I probably look like a crazy person to a lot of people but I remember when I found this guy and he was small enough that I knew there was a chance he would read it and I genuinely loved and appreciated all the content I had seen from him and I know how most people do kind of just comment into the void without much actual substance and I just wanted to let it be known for what it was worth that I saw what he was doing and the level he was doing it at and who knows if he ever read it or not but I will always be that weird person who speaks how they really feel even if everyone judges me for it or I'm misunderstood at least I tried ya kno...
The case for Kristen Gilbert is very interesting. My student and I calculate the probability of 40 deaths in Gilbert's 257 shifts, the probability is 7 in a billion. So yes, those deaths most likely don't happen randomly. This is cool. We need more real world applications of maths and physics in textbooks exercises.
I have that very thought everytime I'm doing problems in a textbook.
But that doesn't prove that she did it? Although the numbers are astonishing, how can someone 'induce' a heart attack and let alone the probability of someone doing something so evil just to "save the day?" This makes no sense
I cant figure this out, so im sending people the same coment question with hope to get an answer
4:45
1st, how do we know which distance we should chose between two points?
Like, how do we find the correct angle of the line?
In this example to me it looked like the bike lenght was assumed beforehand, and then that lenght was used to find out the direction.
Sure tho we can assume about how long it is based on the fact that bikes tend to be made within a small range of lenghts
But then 2nd
Why wouldnt you find the same going the other way?
If the line fits in one direction than it would fit in the other since its the same lenght between the two wheels no matter which direction the front tire is facing
Idk, i assume im missing something, but it really doesent make sence to me why you wouldnt be able to fit a same line of the same lenght all through out the two bike tracks.
If anyone can explain this to me, i would greatly apreciate it
Ill tell you a joke in return
Idk what else i can do on here to pay ya back( maybe a story, or a concept, as you like)
Have a good day
@@learning_with_irving4266that alone doesent prove it indeed.
A greater likelyhood of something happening does not mean that something happened or will happen for cirtain, so without any further evidence, it would make sence to convict her
But the stats themselves would provide at least some correlatory lead
This guy is good. I predict 1M subscribers in the near future. He certainly deserves it!
You were right about the milion, but idk when he got it, whether it was in the neer future
Tho neer is relative
Anyway, have a nice day
This video is amazing! I absolutely LOVE seeing math and science applied to every day situations, or at least situations in general, I dunno how every day some of them are. But this love is the whole reason I got interested in engineering and physics. Thanks for taking the time to make this and the other videos on your channel which are just as amazing.
I wish i could like this video more than once.
I love math. Look at everything it has given us and will continue to give.
Maths is beautiful!
It's like solving a puzzle. Maths allows you to use the little that we know to figure the things we don't know. We use maths to see the connection between things around us. It allows us to understand the world around us.
It's also amazing to consider that without maths, we most likely wouldn't have chemistry, biology, programming, computer science, physics and even more, because all the things people used to discover all of these things were built by maths! None of these subjects would be nearly as big as they are now if not for maths.
I thank God for helping me see the beauty of maths.
Very interesting video. Thank you !
This was so enlightening😮
Great video! Really shows the application of maths and physics in daily life
im glad you are using metric system. thank you
In a Tom Clancy story, the Russians had an extremely stealthy submarine, one that absorbed sound that hit it so sonar couldn't pick it up, and had silent engines. Impossible to find, right? Finally our heroes realized that they could find it by knowing where it WASN'T. There's always background noise that looks like fuzz, so all they had to do was look for a void in the background noise, and there was the submarine. Genius!
*Thanks 🙏 for such nice video which is Very essential to create awareness among people about the use of Mathematics and it's application almost in every thing.*
*Love 💕 from India 💕*
Can you do a video on quantum computing and what majors needed to get into the field?
Your best bet is to probably major in either physics with an emphasis in atomic/molecular/optical or condensed matter physics. But a degree in applied mathematics with an emphasis in mathematical physics would be good too.
Great work keep it up
this video is so interesting, this is why I love math so much, and there is still so much to be discovered.
The water sway technique for building balance and the catenary were extremely cool. 😎
God I love this channel! And this guy is amaaaaaaaaaaaazing👏🏼
Wow!that's amazing.
Wow, I've learned a LOT
I have a physics teacher who was able to use physics in case to prove somebody was speeding. Pretty cool
Dope. Shout out from a fellow Mathematician in SC
Hey majorprep live your work, been subscribed since 5k :)) Would you be able to do a video on architectural engineering as rare as it may be?
MajorPrep, I know you don’t usually focus on high school related topics, but I am going into high school next year and I have started worrying about SAT’s and I really want to be ready. So if it is not too much too ask could you make a video about SAT tests and how to prepare for them? Please.
Pertaining to the slosh tank at 11:16, it has been determined that with a boat, when the period of a wave matches the oscillation of a boat, the boat capsizes. Wouldn't there be the same effect with a building where the swaying of the building matched the oscillating wind speeds?
This was a very interesting video.
Ah yes the old trick of using string to find the most structurally effect and strongest arch for a building.... You talked about soil, mass damper and slosh tanks... You have made my day.
I wish I could've seen your channel when I was in high school
Regarding traffic jams (and you know, stop lights), watch the brake lights on the car in front of the car in front of you. Then you are reacting to their stimulus, and if everyone did this, it'd cut the effective reaction time.
I think you can actually make a *series* (got it?) about this topic! This is basically engineering: applying physics and chemistry, which applies math
Better. Make a book about it.
Better. Create a community for people to learn the major prep way. Beyond just school, low to no profit organization that allows others who have a true passion to learn about lifes complexities to meet up collaborate and learn in an environment that isnt as assessment enforcing as school can be. And privides a collaborative environment that promotes togetherness, teamwork, and a better understanding of how concepts apply in real world situations.
I feel like if something like that exists a lot more people will become more open minded and at the least have an appreciation for mathematics and physics. And at the most everyone will realize how cool engineering really is and younger kids will have a better premise to what they can expect to gear up and prepare for the work it takes to getting into the field of study. Or they can realize the work and not get into it lol. But come out still with an appreciation and understanding that they cant simply compare any other work load in a common business job to the work it takes to build such complex modes of understanding within physics and mathematics.
Your bicycle example is only correct under very strict conditions. You must state the velocity, where the contact patches for the tires are in relation to the bikes center line, and if there is loss of traction for either or both tires to judge if it is true.
Loved your video on finishing the book How to Prove it, I'm Midway through it myself, and have wondered what to move on to after. I would love to know your thoughts/suggestions on this
Nice! I’m doing number theory right now. I think you could probably move on to real analysis as well (assuming you have the calculus background).
The animation at 5:44 is from CGP Grey "The Simple Solution to Traffic"
i was looking for someone else who saw that
This video slaps
I guess you forgot to mention the cgp grey's video reference, right?? Great video btw.
You should make a video for Statistics majors
Noooo, too boring. Keep it Physics/Math oriented :)
The next video is going to be stats related. It won’t be the typical ‘stats careers’ or ‘the statistics major’ type video but hopefully people find it interesting.
MajorPrep Nice!
it's interesting to see statisticians aid in prosecution, ultimately ending in a conviction based on a small sample size.
Right!?? That was so stupid, getting fired for doing your job well..
You forgot to say that the throw angle that maximizes the distance, depends on air drag.
With drag the angle is smaller (typically around 20 deg)
PHYSICS AND MATHEMATICS ARE BEST.
I love Physics and Mathematics. 👍🏻👌🏻
Do architecture and architectural engineering
I've seen two of your videos. Both do Bayes theorem
Noice I have the same wallpaper on my PC !
How about more in-depth videos on each of these topics seperately?
Coolest thing ever, always being impressed when studying engineering... hahahaha
Lmaooo
So, given the optimum viewing distance for a statue is
D = (Htop * Hbase)^{0.5), can I assume the optimal viewing distance for a building which has a height to the bottom of ZERO since most buildings aren't on platforms would NOT be the sqrt of 0....(height *0)^(.5) = (0)^(.5)? would the optimal distance simply be the sqrt of the buildings height ?
12:30 Mazda RX7 spinning dorito intensifies
The fact he started off explaining statistics and math
So all this I can apply this to real world situations
As each flip is different flop the flip prior to it doesn't it mean the 1000th flip is also 1/2 probability.
Is there a frequency where a slosh tank would be counterproductive?
Oh lord that is a old lithuanian 5 cent coin
0:19
@5:37 the bike is facing the wrong way
What about the fact that when you are going fast enough on 2 wheels, turning the front wheel to the right will make you go left and vice versa.
If you dont know what im talking about, It's called counter steering. And its how professional motorcycle racers are able to make those sharp turns where they lean the bike over and scrape their knees on the ground without falling over and crashing. 🏍️
Is it also right to assume that more distortion means front tire?
If you mean more variation in amplitude then you are correct.
Hint, don't add more lanes.
Have 2 lanes and viable options that are not car. 6:17
I have never felt the 'I like this' sentiment more strongly on clicking the like button as I did on this video
sir I really like your videos is there any way I could get in touch
Hi, I am 15.What extracurriculars do I need if I want to get into Ivy league collages like HARVARD AND PRINCETON.I'm really interested in going to MIT if I can.I am really good at academics but I have no idea about extracurriculars.I have some experience programming to make games, apps and some robotics.Is there any way I can get into MIT if I have a good programmer portfolio.What projects can u recommend????
find videos on youtube specifically pertaining to these requests, by searching them up. and check out Rishab Jain who got into MIT & Harvard, and people's maker portfolio videos on youtube (there's a ton of examples)
i'm also 15. extracurriculars for engineering: FRC & FTC are the best (pertaining to mechanical, electrical, & computer engineering). Science olympiad and TSA could also work if that's NOT your main thing. F=MA & Usapho are a physics olympiad. Carrara got into MIT & UC Berkeley, check out his channel too. math is helpful for any STEM major. math extracurriculars: AMC (only helps if u AIME qualify), state math contests, college math contests. Go to your local math club or school math club. For all of these, google search & youtube search your questions pertaining to all these names i gave you. really the thing that will help you the most is not me typing out a paragraph, or even 5 paragraphs, it's that you USE this info by searching it on youtube & google.
13:35 But if the statue is at the same level as me but much taller then the equation is sqrt(0*L)=0.
That is correct, because as soon as you step back that angle decreases. I imagine it like standing in front of a skyscraper. You'll appreciate how tall it is the most by standing right under it and looking up.
Mathematics can really explain everything. What a tool we've created.
Are you sure it was created? You can't state that like it is a fact.
hey majorprep, do you lift weights? following your channel for a while now, i think you put on some muscle mass!
Haha yes I do! Thanks for noticing
The issue with the Gilbert present one is that Lucia de B was found guilty in her court case without actually having done it.
Math and science are the real life video game.
Do I need to know calc 1 in order to take introduction to physics?
You need a solid understanding of algebra and trigonometry to take aphasics class and be succesful. Intro physics won't show you how to describe physical phenomena in there true form(calculus/differential equations) until university level. If you are a physical science major or engineering.
Nope. You need to know how to use what's called the power rule in differentiation. But that's really easy and that's all. Classical mechanics is mostly pre-calculus stuff. Lots of tricky algebra and clever trig applications though.
Doesn't the bike turn to the left at the end?
40 deaths on her shift vs 34 when it wasnt her shift
Given there are 3 shifts, we would need to know if those other deaths occur spread out across the 2 remaining shifts, or do they all happen on one of the two shifts
Did they take in account any other person who was usually also in her shift that could have potencially tempered with something?
How long did they survay the hospital for?
We have such little informatipn to go by in order to conclude if she did something or not
I assume that there was more evidence which we are not privy to , at least i hope so .
Because a correlation does not equal causation.
I don't understand the differences between the shifts in the table at 1:42. Could anyone explain them?
40 deaths occurred while gilbert was present at the hospital (257 shifts overall during her time there). When she was not present only 34 people died and that was out of 1384 total shifts. The percentage of deaths happening on her watch was really high (kind of like having a coin that keeps coming out 9 heads out of 10 flips).
I legit go from this guy “canceling a porn subscription” comedy video to this and honestly Zach star could be more versatile in his intelligence than Jamie fox.
At 5:57 the motorcycle is doing a very dangerous move to pass the bus. Just sayin...
4:45 wait
1st, how do we know which distance we should chose between two points?
Like, how do we find the correct angle of the line?
In this example to me it looked like the bike lenght was assumed beforehand, and then that lenght was used to find out the direction.
Sure tho we can assume about how long it is based on the fact that bikes tend to be made within a small range of lenghts
But then 2nd
Why wouldnt you find the same going the other way?
If the line fits in one direction than it would fit in the other since its the same lenght between the two wheels no matter which direction the front tire is facing
Idk, i assume im missing something, but it really doesent make sence to me why you wouldnt be able to fit a same line of the same lenght all through out the two bike tracks.
If anyone can explain this to me, i would greatly apreciate it
Ill tell you a joke in return
Idk what else i can do on here to pay ya back( maybe a story, or a concept, as you like)
Have a good day
You take the direction the solid line currently is at any arbitrary point.
Extend a straight line in both directions from multiple points on the solid line in accordance with that
in 1 direction, the distance until they cross the dotted line will always be the same (in some cases, will cross the dotted multiple times, only the distance that is in every measurement matters), this is the direction the bike is heading, and the distance is also the distance between the front and back wheel
in the other direction, the distance will not be equal, and in fact may be infinite/undefined (they never cross), this is not the direction the bike is heading
Using the example in the video, I measure the distance at several points according to this method.
The distance he has going to the right is aprox 3.5 centimeters on my monitor (not the length of bike, but is the onscreen model, would be scaled up in any actual situation)
taking from the points he picked in the graph, the first point is aprox 4.5 centimeters from the dotted line in the other direction, the second aprox 3.5, the third aprox 2.5
while it ALWAYS touches at 3.5 cm to the right
I don't think I'm understanding this "shift" data. How long is a shift? Is it really the case that the average relevant employee (not sure who they are) spent 26 hours per week working?
Evryone misunderstands what p value refers to. In classical statistics the question what is the probability that the given hypothesis is true is meaningles. It's eather true or fals. Only in a bayesian setup can one make sense of such questions. What p values realy stands for is how inconsistant is the data to the hyphothesis given that the hypothesis is true. If the sample has a too low probability of occureing given the hyphothesis, than we coclude the hyphotesis does not reflect the data well and we choose the alternative hyphothesis.
At 5:44 please quote from whom you took the gif ( th-cam.com/video/iHzzSao6ypE/w-d-xo.html ) so that someone interested can check the video and learn more
i swear ive taken off no hands with front wheel sideways.. i think forward motion will overcome your angle
just put your hands on the seat to steady you if youre 12
Maybe a silly question, but I wonder, how the direction of a bike going circular is determined.
I just came from his how easy it is to lie with statistics video so now i am paranoid about all statistics
👨🎓🤍🗽great observation
It’s so weird seeing him smart
Despite making up 13 percent of the population.....
This kinda math?
What are the careers in physics? Someone plz reply me
Your question doesn't makes sense. Are you saying you want to work in physics? In that case you need a Phd in physics. Depending on what you focus in physics will determine what type of research in physics you will do.
isn't de 5:48 footage from CGP Grey? just asking?
dandysixties it sure is. But it looks like someone had turned it into a GIF
One person cannot be convincted based on probability! If such happens its not justice.
@12:03. Many years ago, I asked the question about manhole covers of persons who applied for a mechanical engineering job. You would have failed that question. A large enough manhole cover will cover a small enough hole and not fall through as long as the widest hole dimension is less than the smallest cover dimension. It is a matter of the size of the supporting edge or lip of the hole. There are many reasons manhole covers are usually round (not all are). Those reasons include, but are not limited to, efficiencies in materials used, costs, stresses in materials, ease of orientation, ease of movement, etc. I like your videos, but you swung and and missed on this one example.
Woah, you just made a dumb guy like me interested in math.
3:00 the bike problem was solved by Sherlock Holmes in a story i don't properlt remember.
There were bike tracks on a muddy downhill and Sherlock understood where the bike went and told Watson the reason.
It was not "solved" exactly, he did not tell maths behind it. But gave a little bit of logic that i was not able to understand.
If i remember correctly i think it is the one story in which a football player goes missing.
MajorPrep, hello, can someone help me analyze something very old, and old math which i found in an old book, almost 1500 years old...i can provide you information.
First
I'm glad Jimmy Kimmel found another job.
so if you serve night shift and colleague serves day shift and people die more in the night then you go to jail... nice injustice system.
"Physics"
Hey, why you have 5 rubles coin tho?
Since there are 7 billions people, you can't just conclude that person is a criminal if his/her odds to be innocent is 1/million. Because with threshold 1/million you'll put 7000 innocent people into jail. 1/trillion sounds as about right threshold.
Curse you tree