- Видео 277
- Просмотров 75 459
The Mindful Physicist
США
Добавлен 17 сен 2020
We are a resource for students trying to understand physics concepts with clear and simple examples. Our focus building connections between physics, biology, and nature. This makes this channel an excellent resource for preparing for the MCAT and studying for college and high school physics exams.
We are also a resource for students interested in balancing their understanding of the universe with an understanding of their minds. For too long, scientific knowledge has lived too far away from the knowledge of what makes us happy. The Mindful Physicist believes that it is easier to find joy in science and school when we know how to find joy in life.
We would love to hear your feedback. Please reach out at sstambac@gmail.com.
PS - Check out my debut novel, The Invisible Life of Ivan Isaenko (a.co/d/2b1Uzza)
We are also a resource for students interested in balancing their understanding of the universe with an understanding of their minds. For too long, scientific knowledge has lived too far away from the knowledge of what makes us happy. The Mindful Physicist believes that it is easier to find joy in science and school when we know how to find joy in life.
We would love to hear your feedback. Please reach out at sstambac@gmail.com.
PS - Check out my debut novel, The Invisible Life of Ivan Isaenko (a.co/d/2b1Uzza)
Can Baby Make Mom Pee?
Here is another real-life example of the physics of pressure. For nine months, the fetus growing inside of a pregnant mother is pressing on her bladder 24/7. As the baby grows more massive, is there ever a point at which it could trigger the micturition reflex? (i.e. the micturition reflex is triggered when there is enough weight on the bladder for the bladder to spontaneously release its contents).
Просмотров: 25
Видео
How Much Does an Arctic Fox Need to Eat Every Hour?
Просмотров 22Месяц назад
In this video, we use the Fourier Heat Equation to determine how man calories an arctic fox needs to eat just to maintain homeostasis.
Conservation of Energy: Clif Bars to the Moon
Просмотров 54Месяц назад
In this video, we use the most powerful physics problem solving technique (conservation of energy of course) to estimate the number of Clif Bars you would need to eat in order escape Earth's gravity and jump to the moon.
Pressure: How Deep Can We Safely Snorkel?
Просмотров 21Месяц назад
Here is an interesting question in pressure physics-how deep can we snorkel without an oxygen tank and still be able to breathe atmospheric air? Is there a limit? Turns out there is and it's not big!
Thermodynamics: How long does it take to cool down after a workout?
Просмотров 61Месяц назад
In this video, we use the heat equation to determine the real-life physics example of cooling down after an aggressive workout.
Stressed Out Giraffes and the Hydrostatic Pressure Equation
Просмотров 62Месяц назад
The fact that a giraffe is so damn tall has important implications for its blood pressure in its ankles. In this video, we use the hydrostatic pressure equation to determine a giraffe's blood pressure at its ankles.
Sliding vs. Rolling: A Story About Energy.
Просмотров 136Месяц назад
Sliding vs. Rolling: A Story About Energy.
How to Make an Engine Mount for a Model Rocket
Просмотров 9983 года назад
How to Make an Engine Mount for a Model Rocket
Momentum and Center of Mass - What is Momentum?
Просмотров 1423 года назад
Momentum and Center of Mass - What is Momentum?
Momentum and Center of Mass - Intro to Conservation of Momentum
Просмотров 543 года назад
Momentum and Center of Mass - Intro to Conservation of Momentum
Momentum - Elastic vs Inelastic Collisions
Просмотров 743 года назад
Momentum - Elastic vs Inelastic Collisions
Momentum - Conservation of Momentum in 2D
Просмотров 633 года назад
Momentum - Conservation of Momentum in 2D
Momentum - Center of Mass of Non uniform Objects
Просмотров 803 года назад
Momentum - Center of Mass of Non uniform Objects
Momentum - Conservation of Momentum Worked Examples
Просмотров 603 года назад
Momentum - Conservation of Momentum Worked Examples
Momentum - Center of Mass Introduction
Просмотров 993 года назад
Momentum - Center of Mass Introduction
Momentum - Center of Mass of a Human Being
Просмотров 773 года назад
Momentum - Center of Mass of a Human Being
ELECTROMAGNETIC field travels at finite speed. True. But that doesn't explain how ELECTROSTATIC field can exist around a charge upto arbitrarily large distances, which effectively is, action at a distance.
That’s interesting! Thank you!
The whole day would be gone. I am sad all day. Rumination is not a choice.
Yes, Jesus said in the Bible to love one another, not because we feel like it or when we want to.
Thank you so much👍❤
@@MounaAimene my pleasure!
Thank you sir
@@Agasped happy to help!
Now I know what positive and negative twerks are
Very instructive video, this will blow up.
Now I understand why we engage only roughly 60% of our body weight while doing a pushup. Brilliant video!
@@nipunsyn appreciate the kind feedback ☺️
Great video sir, very thoughtful. And the funniest part is when you emphasise glorious and luxurious hair which is of course for your baldness😅. I'm sorry i dont mean to hurt you
This is an amazing video thank you so much! I love how you go through everything step by step and there's no rushing so I actually get what's going in thank you.
@@Pouredbooyy thank you for taking the time to share this sentiment 😊
If we are talking AC not DC as most transmission lines are, there needs to be other RF variables included... It is a dynamic threat not a static threat as you suggest...
You are absolutely correct. Just taking an oversimplification to illustrate here. The EM version of the spherical cow :)
Favorite teacher so far!!
is it not right hand rule?? Why is this man using his left hand, if its out of field is it not just down???
Confession: To make these videos, I need to flip the image in post production or I'm writing backwards! This makes the right-hand-rule very difficult to teach in this format. But you are totally right. I should add a disclaimer.
This video was very well made and informative! Your grip on this subject is really displayed throught your fluent presentation of this example and you made it simple to understand. I look forward to seeing more of your educational videos! Sincerely, Nathan
Wow, this is so kind and lovely to hear. Thanks for taking the time to share.
atrocious audio :(
Working on it!
since they both will have the same potential energy (at the same height), does this mean that the linear velocity of the sphere will be lesser than that of the block?
I would think some of the potential energy will be converted into rolling if the object in motion is able to roll. This is an imaginary scenario where both happen to be undergoing translational motion, and happen to be moving at 10m/s. Though if they were dropped from, say, the edge of a skateboarding bowl (accelerating from rest instead of starting at same speed) we might see them move at different speeds
Absolutely. 👏🏻
mmm so for our next experiment...accidentally leaving someone in an mri machine and disabling any safeties built in.
Lol
Lovely 😊😊
What about tue high electric field surrounding overhead power transmission?
Nice observation. This exists too and carries its own danger.
God I remember this in class lol 😂it never got old! And I’m still amazed
Here's something even crazier-that was 14 years ago!!!!
physics is so cool man
I had a 30-minute, 3 tesla MRI about 9 days ago. I asked the MRI technician if in his MRI training he and the other students were encouraged to keep a distance from the MRI machine in order to minimize any affect the 3-tesla magnetic field might have on his body. He said, "No, magnetic fields do no harm to the body as far as anyone knows." From that conversation, I learned that the magnetic field of the MRI machine is not turned off and on with each patient. The 3-tesla magnetic field is on 24-7. He told me that it costs tens of thousands of dollars to "extinguish" and re-establish the magnetic field. Every time they extinguish it they have to release all of their liquid helium, which is there to keep the MRI conductors at super-conducting temperatures. Replenishing the helium is expensive. I have said that to say that the technician is in and out of the very strong magnetic field many times a day every workday of the week and through out his or her career. If they were being harmed, almost certainly we would have heard of it by now. Also, I have searched quite a bit on websites for information about harm from electric or magnetic fields, but those whose job it is the research these things say they cannot find evidence of harm. Some of those who say that these fields don't appear to do harm are: WHO, CDC, FDA, IEEE, European Commission, OSHA, FCC, and on and on. The only such fields that may cause harm are those electromagnetic waves which carry enough power to cause heating of flesh, or those whose frequency and photon energy are ionizing. The frequency of the EM wave would need to be higher than 2.4 million GHz (10 electron-volts).
Do you type laterally inversed😮
I wish I could say yes. I just flip the video!
if you want to know the truth, watch this one. This guy is missing the real impact of the high voltage pylons with multiple lines. ruclips.net/video/FssSoQNZc1Y/видео.html
Can someone calculate the speed at which the pollen grain is moving during transfer?
I will add a video of this if I get a moment. Just takes some conservation of energy.
Thankyou so much sir ♥️🫡
Tritium is radioactivy yet has only 3 nucleons so size doesn't seem to matter. Women know this lol
Lol
If it were stronger than the em force, He-2 should exist.And it doesn;t. The repulsion and attraction tend to offset each other with repulsoin winning sometimes and nuclear binding force (aka nuclear strong froce) winning sometimes
isn't the 60Kg result we get the mass of the RIGHT side of the board ???? otherwise it does't really make sense to me
Are these calcs based on a single wire? Most transmission pylons in Europe carry six or more lines, does that mean the percentage is 8% times six?
Einstein's Nobel prize was for photoelectric effect, not brownian motion. Still a great video btw.
Thanks for the clarification! And for the kind words :)
really helpful!!! hopefully i ace my phys test
Hyperopia is not the same as presbyopia... This is how to correct for farsightedness in general... Alsp is not fix, is correction lol
Thanks for the correction!
This video should be noticed, wow great work so brief and understood
Awww! This made my day. Thank you so much.
Most overhead lines are AC 3PH not DC.
The big...long distance...power lines are usually DC...but yes...the power lines in your city/town are AC.
Writing in reverse is pretty impressive, cool video.
I got 33.3 m/s for cheetah problem and 10,755.6 cm/s for falcon problem :)
Goated
didn't explain anything waste of my time
You are great
Thank you so much :)
Thank you for wasting three minutes of my time
You're very welcome!
FR, did u end up finding a video with good explanation ?
Cant see that blue writing against the black background dude.
@stev-1211 maybe its easier on a computer. But it's way too difficult to see on a phone.
Thanks ❤
Everything shrinks
thank you professor!❤
If you guys think that Black Holes are nuts like I did, look up "Spaghettification". Basically, once you get close to a black hole to where it pulls you in, the force is so great that you get stretched out like a Spaghetti noodle. Black Holes turns you into Spaghetti. Supermassive Black Holes smashes you into a pancake instead (known as Pancake Detonation). So, Supermassive Black Holes turn you into Pancakes. Even more nuts! universe.nasa.gov/news/241/what-happens-when-something-gets-too-close-to-a-black-hole/#:~:text=This%20effect%20essentially%20stretches%20out,A%20Brief%20History%20of%20Time.%22
"I hope this did a fun job of merging the physics world that we've been studying for this last year with this chemistry world where you've studied atoms for the last you know probably since high school, and now you kind of understand how they fit together and they're married in a holy matrimony" Those two must be long-time compatible partners to fair so well after all these years! Their child, Chemical Physics, must be just as neat as its cool, fun parents!
For those of you wondering why at 11:57 , Sin(θ) = y/L when it should be tan(θ) = y/L since L is adjacent to θ and is not the hypotenuse, and in SOH CAH TOA, Sin(θ) = Opposite/Hypotenuse whereas Tan(θ) = Opposite/Adjacent, please look up and read more about Small Angle Approximation for Tangent, where for very small angles in right triangles, the hypotenuse and adjacent lines are almost similar in lengths, thus tan is going to be equal to sine. www.google.com/search?q=Small+Angle+Approximation+for+Tangent&sca_esv=662cffd7cc06fb3f&hl=en&sxsrf=AM9HkKkKbdZyoEiwmN18pionvzrXN2MUZw%3A1701398700243&source=hp&ei=rEhpZcKgDLjXkvQPwN-uiAE&iflsig=AO6bgOgAAAAAZWlWvJWfxpJOj32gP6roy0CQrKZLK2NU&ved=0ahUKEwjCppaJnO2CAxW4q4QIHcCvCxEQ4dUDCAw&uact=5&oq=Small+Angle+Approximation+for+Tangent&gs_lp=Egdnd3Mtd2l6IiVTbWFsbCBBbmdsZSBBcHByb3hpbWF0aW9uIGZvciBUYW5nZW50MgUQABiABDIGEAAYFhgeMgYQABgWGB4yCxAAGIAEGIoFGIYDMgsQABiABBiKBRiGAzILEAAYgAQYigUYhgMyCxAAGIAEGIoFGIYDSMUFUNECWNECcAF4AJABAJgB_AGgAfwBqgEDMi0xuAEDyAEA-AEC-AEBqAIKwgIHECMY6gIYJw&sclient=gws-wiz
why do you not need to use Fdcos(180) for your work to friction?