- Видео 444
- Просмотров 126 895
Valentin Voroshilov (Dr. V)
Добавлен 12 янв 2012
Short and long videos from Dr. Valentin Voroshilov, i.e. me! (some more at ruclips.net/user/buphysicsvideos)
P.S. You may ask, why in the titles I call myself as the third person? Just to help search engines to find me!
P.S. You may ask, why in the titles I call myself as the third person? Just to help search engines to find me!
Видео
Obvious or not?
Просмотров 18Год назад
In this video there is a proof that things obvious to some are not to others. At least in physics.
General Introduction into an elementary physics course
Просмотров 73Год назад
General Introduction into an elementary physics course
A video manual for Lab 1 (how to use free lav software)
Просмотров 122 года назад
A video manual for Lab 1 (how to use free lav software). This video is NOT to show the full lab, but to explain how to take data using given programs.
Using a video analysis app for a virtual lab in mechanics
Просмотров 212 года назад
Using a video analysis app for a virtual lab in mechanics. Tracker and Graphical Analysis are free apps available online.
Solving a problem on ice-water mixture
Просмотров 452 года назад
A detailed problem-solving strategy for solving problems on thermal equilibrium involving a mixture of ice and water - an example.
12 minutes of struggle, making home a simple model of a spray demonstration
Просмотров 432 года назад
12 minutes of struggle, making home a simple model of a spray demonstration (or just skip to the last minute to se the happy ending).
A home-made Venturi Meter demonstration
Просмотров 1,4 тыс.2 года назад
A home-made Venturi Meter demonstration
The birth of a home-made demo experiment: air pressure power
Просмотров 112 года назад
The birth of a home-made demo experiment: air pressure power.
Sample of remote tutoring: Geometry, 9th grade
Просмотров 172 года назад
Remote tutoring is tough, there is no good hardware and software for good remote teaching (www.cognisity.how/2020/12/zoomsucks.html). But one can try (iergo.us/).
Comments to two problems on angular momentum
Просмотров 92 года назад
Comments to two problems on angular momentum
Introduction into electric force: simple demonstrations.
Просмотров 163 года назад
Introduction into electric force: simple demonstrations. For more videos: www.cognisity.how/2021/03/PhysicsDemoVideos.html For some publications on the strategies for teaching STEM go to www.cognisity.how/p/strategies.html
The definition and two nice demonstrations for an adiabatic process.
Просмотров 423 года назад
The definition and two nice demonstrations for an adiabatic process. For more videos: www.cognisity.how/2021/03/PhysicsDemoVideos.html For some publications on the strategies for teaching STEM go to www.cognisity.how/p/strategies.html
Calculating the efficiency of a non-Carnot engine.
Просмотров 683 года назад
Calculating the efficiency of a non-Carnot engine.
How to find the work done by gas in one cycle: an example
Просмотров 213 года назад
How to find the work done by gas in one cycle: an example
Two working heat engines: a small demo.
Просмотров 343 года назад
Two working heat engines: a small demo.
A problem-solving strategy for problems on torque.
Просмотров 253 года назад
A problem-solving strategy for problems on torque.
Solving a problem on torque: an example #1.
Просмотров 33 года назад
Solving a problem on torque: an example #1.
The equilibrium condition for a solid object.
Просмотров 103 года назад
The equilibrium condition for a solid object.
Mass v. mass distribution for rotational inertia.
Просмотров 533 года назад
Mass v. mass distribution for rotational inertia.
Why in UCM (uniform circular motion) there is always acceleration?
Просмотров 113 года назад
Why in UCM (uniform circular motion) there is always acceleration?
Velocity of a ball on a string in UCM (uniform circular motion)
Просмотров 433 года назад
Velocity of a ball on a string in UCM (uniform circular motion)
Introduction into LCLM (law of conservation of linear momentum)
Просмотров 983 года назад
Introduction into LCLM (law of conservation of linear momentum)
Introduction into LCME (law of conservation of mechanical energy)
Просмотров 503 года назад
Introduction into LCME (law of conservation of mechanical energy)
Why do we use dielectric?
Thanks bro
Super sir
Still don't get it what makes both of them bouncy or they have magnets of same pole
Which material is best for making the dipole?
Sir, I am highly inspired by your excellent demonstration. Can you please suggest about which material is very good for making the dipole? Regards
Prof, Heart felt respect. I have one small question. The black dumbbell is made of nonconductor. So, the charge transfer from metal to nonconductor will be on the upper surface of the dumbbell , not the whole surface of the balls. Am I right? Regards
Hi, I want to do something similar, but I'm struggling with how I can get the materials to assemble the Venturi Meter. If you see this, do you have any tips you can offer immediately?
Yes .. you can get stronger electron flow or ionic flow using a needle point or thin wire.. electrons can easily shed from those.
Demo apa?
We all know absolutely nothing.
Rich people being smart depends entirely on how they got rich in the first place
Hello
Надо ещё для наглядности с другой стороны дунуть. Как поведёт себя жидкость ? Я думаю также
Thank you.
Y a m AMBULANCE HOSPITAL SUNDAY*118
Very amazing and excellent demo experiment. Thanks sir.
Thank you for your video, it is clear and concise. It demonstrates "what is left to the reader" often for students.
It’s the same way people look at those who’ve been scammed as dumb. We get scammed all the time by banks, corporations, and the government(which just may be a form of double dipping by the banks and corporations). Rich people who live by a completely different set of rules and realities know we’re getting scammed(because it’s by them) and they go “god you are so stupid”.
Especially when they are the ones scamming us
Checked your videos, I'm going to subscribe, Professor.
Nice demo!
Welp, that about does it......great video lad!!!
Statistics showcase a very strong correlation between succesful Founders & CEOs and IQs that are in the top 1-2 percentile of the overall population. In fact almost 100% of them exist in that category.
And how many of them think they know more than they do? It’s often the case. They think because they’ve developed an expertise in one field or that they test well on IQ tests that they have nothing to learn. Our minds develop to achieve what they need to. A monkey is 1000x better at being a monkey than you would ever be. A lumberjack is 1000x better at being a lumberjack than a CEO could be. Given time and experience that could change, but the thing is, rich and powerful people think that intelligence is worth more than experience. Their egos grow too big and they forget what true intelligence is. They forget all they had to do to become skilled or knowledgable in a field that led to their success in the first place. Intelligence is not a shortcut in learning, if anything it is an accelerant. That’s the issue. Rich people are skipping all the steps to knowing and learning, because they are “intelligent” when in reality being “intelligent” should just make them a little faster at learning. Being smart or successful does not make you immune to ignorance, to fallacy, to overconfidence.
Everyone thinks they know things they don't know. The irony is, that's something I think I know... We do the best we can. That's all.
To have Elon Musk on there is absolutely absurd. The man is an absolute genius and possibly the smartest person in the world.
Like rich talk show hosts
Pot, meet kettle.
Yes, Steven Colbert falls right up there in the ranks of “richest individuals in our country”. Give me a break🙄
Once, in the Old Country, a rich man said to a rabbi, "I see the wise visiting the homes of the rich, but I don't see the rich visit the homes of the wise." The rabbi replied, "That's because the wise, being wise, know the value of riches, but the rich, being only rich, do not know the value of wisdom."
Rich have higher IQ. Poor have lower IQ.
@@user-nc9pc3gr4c cardi b will be splitting the atom any day now!
J must not be rich to have an opinion that dumb
I mean HBO
I guess guy own NBC is rich, just saying 🤷
except these moderately wealthy constantly do propaganda for the super wealthy people (cough cough) colbert
over paid TV Hacks doing the same sh1t .
Garda bhaisaahab...
Bill has a point, Steven…..eh. Jack Ma is a perfect example
Where’s Oprah Winfrey’s picture?
What happened when we put our hand between parallel plates when switch is on did we get a electric shock
Fabulous Explanation 👌
Very good 🙏🙏🙏🙏
Bandli
Sup
Жаль что у вас летние классы пересекаются с моим матанализом :(
Thank you very much sir🙏🤗... Now my doubts are gone with ur help
Indian?
Quick question: Will the dielectric get charged if you place a conductor ONLY on both of the ends? Meaning the conductor doesn't bridge both sides but only gets placed on the balls at the end, will is still get charged and generate an electric dipole?
Without the conductor, the balls both become polarized but each has a positive side and a negative side, but with the conductor, one becomes positively charged and the other negatively charged
@@martinhsl68hw If the two balls are conducting and connected by a conducting rod, is there any need of placing the conducting foil to create the dipole? Thanks N Das
@@nityanandadas5575 no there shouldn't be.
@@nityanandadas5575 the two balls shouldn't be connected with a conducting rod. Else, they'll neutralize each other the moment we switch off the electric field.
@@anushri407 can you please suggest about which material is very effective for making the dipole? Thanks
Tysm.it helped me.
www.cognisity.how/2019/07/Hanauer.html "Money make all the difference!" - deep, indeed! Especially right after "MY money did not make any difference! And I am an investing professional!".
Nice