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Physics Demos
United States
Приєднався 19 сер 2016
This channel contains physics lectures and demonstrations by Dr. Boyd F. Edwards, Professor of Physics at Utah State University, assisted by James Coburn (demonstration specialist), David Evans (videography), and Rebecca Whitney (closed captions), with support from Jan Sojka, Physics Department Head, Robert Wagner, Executive Vice Provost and Dean of Academic and Instructional Services, and Shane Thomas, Manager of Classroom Technology and Media Productions.
Seestar S50 Equatorial Mount: Addendum
In this video, we describe three small improvements to our equatorial mount (ua-cam.com/video/9Pgy4dHBgA4/v-deo.html) for the Seestar S50. All three save time and aggravation in using the mount, and all three simply involve locking existing screws into place. In a separate video (ua-cam.com/video/ObM6bGUChFE/v-deo.html), we show how to polar align the Seestar and how to orient it to the equatorial view of the sky so you can use the Seestar app to find and track objects automatically.
Materials needed are:
Eskonke Red Thread Locker: a.co/d/28JHrxg
J-B Weld Steel Epoxy: a.co/d/2KWm1SZ
Materials needed are:
Eskonke Red Thread Locker: a.co/d/28JHrxg
J-B Weld Steel Epoxy: a.co/d/2KWm1SZ
Переглядів: 3 729
Відео
Seestar S50 Polar Alignment and Operation
Переглядів 10 тис.7 місяців тому
In this video, my son Reynold, "King of the Dark," and I (Boyd Edwards) brave the elements to show how to polar align our equatorially mounted Seestar (see ua-cam.com/video/9Pgy4dHBgA4/v-deo.html and ua-cam.com/video/Xs4v44iD9W8/v-deo.html), and how to orient the Seestar to the equatorial view of the sky so you can use the Seestar app to find and track objects automatically, the same as you wou...
Seestar S50 Equatorial Mount Assembly
Переглядів 21 тис.7 місяців тому
This video describes how to convert an altitude-azimuth tripod into an equatorial mount for the Seestar smart telescope. In a separate video (ua-cam.com/video/ObM6bGUChFE/v-deo.html), we show how to polar align the Seestar and how to orient it to the equatorial view of the sky so you can use the Seestar app to find and track objects automatically. And in a third video (ua-cam.com/video/Xs4v44iD...
Coriolis Carousel: Safety
Переглядів 1,9 тис.11 місяців тому
This video discusses safety considerations in using the Utah State University Coriolis Carousel, which was designed and built by Boyd Edwards, John Edwards, and Reynold Edwards for a Science Unwrapped lecture on January 19, 2024 sponsored by the USU College of Science. The carousel is robust, collapsible, and portable, and can be used on any smooth, flat surface without damage to the surface. B...
Coriolis Carousel: Demo
Переглядів 6 тис.11 місяців тому
This video shows how the Coriolis force can be seen and felt on a rotating platform, called the Utah State University Coriolis Carousel. As seen by riders on this carousel, balls that are passed between them and dumbbells that they thrust forward are deflected sideways. Discussed are: (a) applications for motion on the earth's surface, (b) how this force arises when transforming Newton's second...
3.3 Projectile Motion, Part B
Переглядів 3 тис.Рік тому
This is a video describing how to calculate the height, range, and time-of-flight of a football.
Newton's Second Law in a Rotating Frame (9.6)
Переглядів 12 тис.4 роки тому
In this video, I show how to write Newton's second law in a frame that rotates with constant angular velocity, and introduce the Coriolis and centrifugal forces.
Accelerations in Inertial and Rotating Frames (9.5)
Переглядів 5 тис.4 роки тому
In this video, I relate the accelerations as seen by observers in the inertial and rotating frames of reference.
Velocities in Inertial and Rotating Frames (9.4)
Переглядів 7 тис.4 роки тому
In this video, I relate the velocities as seen by observers in inertial and rotating frames of reference.
Time Derivatives in Inertial and Rotating Frames (9.3)
Переглядів 8 тис.4 роки тому
In this video, I write down a relationship between the time derivatives of a vector quantity in the inertial and rotating frames.
Example: Box in Railroad Car
Переглядів 1,6 тис.4 роки тому
In this video, I show how to apply Newton's second law in an accelerating frame by considering a box on the floor of an accelerating railroad car.
Linearly Accelerating Frame (9.2)
Переглядів 2,5 тис.4 роки тому
In this video, I rewrite Newton's second law in a frame that accelerates with constant acceleration, and identify the associated inertial force.
Reference Frames (9.1)
Переглядів 2,5 тис.4 роки тому
In this video, I define "inertial reference frame," "non-inertial reference frame," and "inertial force."
Kepler's Laws (8.10)
Переглядів 2,4 тис.4 роки тому
In this video, I show that Isaac Newton's three laws, when coupled with his universal law of gravitation, give Kepler's three laws, a feat that Newton accomplished in 1687 in his Principia. I also show that the periods and semimajor axes of planetary and asteroid orbits obey Kepler's third law to high precision. The result is one of the most profound and historically significant results in phys...
Lagrangian in Polar Coordinates (8.5)
Переглядів 9 тис.4 роки тому
Lagrangian in Polar Coordinates (8.5)
Kinetic Energy in Polar Coordinates (8.4)
Переглядів 5 тис.4 роки тому
Kinetic Energy in Polar Coordinates (8.4)
Newton's Universal Law of Gravitation (8.1-8.3)
Переглядів 1,3 тис.4 роки тому
Newton's Universal Law of Gravitation (8.1-8.3)
Shortest Distance Between Two Points (6.2)
Переглядів 15 тис.4 роки тому
Shortest Distance Between Two Points (6.2)
Statement of Calculus of Variations (6.1)
Переглядів 1,8 тис.4 роки тому
Statement of Calculus of Variations (6.1)
Forced Harmonic Motion: Amplitude (5.7)
Переглядів 1,7 тис.4 роки тому
Forced Harmonic Motion: Amplitude (5.7)
Forced Harmonic Motion: Solution (5.6)
Переглядів 1,5 тис.4 роки тому
Forced Harmonic Motion: Solution (5.6)
Forced Harmonic Motion: Equation (5.4, 5.5)
Переглядів 3,2 тис.4 роки тому
Forced Harmonic Motion: Equation (5.4, 5.5)
Diffraction Demo: Single Slit and Circular Aperture
Переглядів 82 тис.6 років тому
Diffraction Demo: Single Slit and Circular Aperture
Excuse me sir, I‘m Korean high school student and trying to make this machine in my school physics club. So if you don’t mind, I want to ask you if I can get a blueprint of this coriolis carousel.
Nice demo. Now I really want that hoberman sphere
Bro went back to OG America
what a poor demonstration of a cattleman crack. if ya'll ever want someone with more whip skills, to give you a demonstration, please let me know
Thanks i done i get pratival tbanks you teach
I have one question. Concave mirror form a real image means the image form in front of it and we need a screen to see it. But in that demonstration the image is formed inside the mirror. Can someone please explain where i lack understanding.
Thank you sir ✨
Looks like some students will study correctly after that
For the last sixty years, I thought I understood Bernoulli's principle... now I am not so sure.
Wish I could have had more teach like you when I was in school
Iam here to visualise physics, now I felt physics by heart as this is most conceptual topic of phyiscs that required visualisation
Freaky proff…
You do realize we are not supposed to get an interference pattern with a single slit, right?
In past we didn't need to show illustration 👴🏻
Why were the water levels different on the two outside tubes?
ok, now change the material of the box to metal and heat it up!!!
Don't do it! I cringe when people do this. Even ZWO don't advise placing it on an equatorial mount, you're going to void the warranty! . The gearing inside are plastic and over time the drive mesh will wear away, and all you will end up with is an expensive door stop.
That was what I thought as well. I would like to hear input about the longevity of this modification.
I cant find a video on how 2 object with the same mass colliding at the same speed, but 1 is heavier in the centre and 1 is heavier on its edges
Task. Generate 3rd harmonic in the exam.
Of course. Bro has experience...
Exactly what i needed!
Sir can you tell the materials used for this demo
But the smaller sphere has a lower moment of inertia and did reach the bottom first.
You have very different perception of color. What you call purple is blue and what you call turcoise is lightblue. You was not even close
Damn
Hello! I don't like the fact that the bob has some negative potential energy, -mgL, when it's at its equilibrium position (I understand it's arbitrary, but it's not very intuitive to lift the bob to the x-axis and declare it has zero potential energy! Not to mention, lifting it directly vertical and declaring it has but mgL potential energy when it is 2L away from the equilibrium position is also awkward). I would rather we write the potential as U = mgL(1-cos(θ)), where h = L-Lcos(θ). This gives us zero potential energy at equilibrium, mgL potential at the x-axis, and mg2L when vertical.
but where's the demo? (if anybody else is interested, alpha phoenix did a video where he shows electricity propagating with the speed of light through a circuit). Also, 1ns isn't that tiny: it corresponds to a 1GHz signal. Your average desktop CPU runs at ~3GHz
Pendila?
Thank you sir ,harekrṣnaaaaaaaaaaaaaaaaaa
01:54 - aren't you actually letting air back into the interior as the vacuum had already removed the air from the inside?
why??
The earth is flat I knew it. Dome life.
I just love bro teaching so much
وين الموهوبين😂
😁
Sir please answer my question, When two objects are in thermal equilibrium, do they have ....same temperature same inetrnal energy... Or both?
Anyone tell me what is the name of the round rod
parker looks like justin bieber
now I need to pee
Simply Excellent
If the surface of both the balls are same (very smooth) then why the plastic ball will move slower in air ??
WATCHED.✔
Brian: “Why are you saying it like that? Why do you put so much emphasis on the “H”?”
Hey thank you so much! I don’t know what exactly I’m looking for so if someone could help me with search terms? I have chronic pain, no core strength, and I believe things are shifting that contribute to me having less balance. I love to bounce, squat, dance, swing around, anything like that. I have even more fun experimenting with the fluidity of my body when I’m drunk and am not held back by my pain :P I would be more flexible if pain didn’t hold me back too :) I just want to find more activities that I could do that have the same feeling
Great lecture series, thank you!! I had some initial confusion which resolved itself - may be worth sharing with fellow learners. I was thinking, even if the train moves at a constant velocity (hence in an inertial reference frame) and the traveler observes a free falling object - detached from the body of the train - in front, then it will appear to be coming towards him. On further thought, the distinction is the following. In the above description, the mass is initially kept attached to the body of the train till being dropped. So, in the constant velocity scenario the mass has already acquired the velocity of the train, so the traveler inside will observe it to be falling straight down upon being dropped. However, in the acceleration scenario (non-inertial reference S), he will still observe the mass to be rushing towards him upon being dropped.
who all are here after gaurav gupta sir's lecture like me😂😂
This is really helpful. Thank you so much
You can't really appreciate the peak or positive waves because the background is of the same color as the string, genius. Other than that, it's awesome.
One problem I am struggling to wrap my head around, is why a 60W bulb glows brighter than a 100W when wired in series, specifically. Our prof made us do this experiment, but the explanation is still unclear to me. Resistance is greater across the 60W....but why would that make it burn *brighter* ?
now i understand the concept, thank you so much sir
Parker is still and more noticeable than the moving string 😂