Video Definition and 724 Threads

This was my attempt at making an explanatory video discussing some of the misconceptions about the experiment. I'm looking for feedback on how it could have been better. In particular, based on some of the confusions in the comments on the video, it's clear to me that I should have e.g. gone...

For many years, the on-bike cameras in Sportbike/Superbike/MotoGP racing showed the leaned images tied to the bike that the cameras were mounted on. Great stuff, but the new camera video from some of the MotoGP bike camera feeds for the last few years have included gyroscopic horizon...

https://arxiv.org/pdf/2011.15126.pdf https://nvlabs.github.io/face-vid2vid/ https://wandb.ai/ayush-thakur/face-vid2vid/reports/Overview-of-One-Shot-Free-View-Neural-Talking-Head-Synthesis-for-Video-Conferencing--Vmlldzo1MzU4ODc One thing in this modern world seems to be ubiquitous; the demand...

Here's a nice video which is a size comparion of a great number of fictional structures from science fiction novels, movies and games. The video is called "FICTIONAL STARSHIPS Size COMPARISON" but it includes some structures I personally wouldn't call starships, but anyway... Enjoy...

Hi everyone, I was hoping the internet would be filled with video lectures since lots of universities have been forced to conduct online teaching. However, that doesn't seem to be the case. Therefore I was hoping that some of you know of some great video lectures for nuclear and particle...

This following video demonstrates just how far the automotive safety has come over the decades.

In contributing to the thread https://www.physicsforums.com/threads/i-need-recommendations-to-read-about-physics.996304/ , I see that the video that greatly influenced me to study relativity is now available online on YouTube (made available by the film distributor). In 7th-grade, after...

I've heard of Zoom, of course, as a video meeting tool. However, I've heard stories of it being hacked into by people and it being sometimes unsafe. I'm wondering if there is something like it that is both free and "safe" (I assume nothing is 100% safe, but am thinking of just not having any...

How did you find PF?: Google Search 1) Have created YouTube video clips about electronics, cochlear implants, and Robert's Rules of Order => https://NDAcademy.FoxPing.com/. The electronics covers topics industry needs (zero theory). Starts at middle school grade level, ends at college level...

Lets imagine that I will put the recording camera and ticking clock into a box and so that camera can record this clock all the time ticking. I will put then this box to the speed of 1/2 speed of the light, after a minute of mine I would stop this box and take the camera from it. As it was at...

In this video the presenter says that motivation comes after starting the process and achieving the goal but when I start the process and I achieve it I get relax and start doing things slowly, maybe i am not able to grasp something in this video. Will i have to gain external motivation on daily...

I recently started studying electrodynamics from Griffiths and found It rather challenging. I was able to finish the first chapter on basic math, Although my concepts on things like greens/stokes theorem were quite shaky as I am finding it rather difficult to follow the derivation of said...

There is a youtuber named Roel Van de Paar who is using some program in order to spam video uploads and it is completely flooding the search by upload stream. Minute by minute this jerk keeps uploading tech vids with pseudo-content. I have actually never seen anything like that. I have...

If so, I want to have a nice thread where I can ask questions. :smile:

Is the presenter's explanation correct in all respects? And has anyone seen one of these "in person"?

I stumbled across this on youtube and wondered if someone could explain what we are actually looking at here. Looks amazing!

Here is the video in question: In the video at 4:23, Michael says, "Now Thales's Theorem tells us that the two other points, where these rays contact the circumference, are diametrically opposed. They are on opposite sides of the circle and a line passing through them will pass through the...

I find this video absolutely amazing, and have watched it over a dozen times now. It helps if you can use the spacebar to pause it and read the text, and arrow keys to back up 5 seconds. - This is NOT phone friendly! Big monitor and 1440p recommended. So two different questions for...

The program ffmpeg can be run on a video file to print out information about the file format. An example of some output: What is the meaning of the brand information?

I think this is an excellent educational resource for younger students, and I'm trying to find out more about high quality versions of these videos that may still be in use anywhere. https://animatedscience.co.uk/eureka-physics-videos-2 I have 2 pressing questions. 1) Where to locate these...

I am switching from Mathematica to Maxima. Although both of them are symbolic computation programs, I think it is better to start studying Maxima's language from the basic stuff. Could someone recommend some good video tutorials to me? Thanks.

Do you have some links of best aerodynamics video lectures?

Hi, I was watching a video on the origin of Taylor Series shown at the bottom. Question 1: The following screenshot was taken at 2:06. The following is said between 01:56 - 02:05: Halley gives these two sets of equations for finding nth roots which we can generalize coming up with one...

For a DVD player, the amazon website https://www.amazon.com/gp/product/B07ZZMB571/?tag=pfamazon01-20 has the notes: Do the definitions of various video formats such as *.mp4, *.avi allow them to specify a "signal format", such as "720p" (https://en.wikipedia.org/wiki/720p) ?

Does ball (in video)when flying ,going in straight line or in curve line,so if I am inside this ball, will I feel like I am in car which accelarate in straight line or car which accelare in curve? I think ball is going straight,curved path is just illusion..

I am a high school science teacher working on arts integration for thirty years in schools where many students have academic skills below grade level. I am looking for feedback.

Good for the general viewer who wants an overview, it then gets into the more detailed medical aspects for the medically knowledgeable or curious. Detailed explanations starting with the basics of how it spreads, through how it infects and affects the body, and diagnostic markers.

Looking for a best vid program that will let us have a group video call for more than an hour at no cost; expected max participation would be around 20. The ones I know about, off the top of my head, are Skype, Zoom and Google Hangouts. We are not a school or non-profit, just a bunch of...

Personally I think it is chess. Which also makes it relatively safer to play. Video games are designed to suck up hours of time, while chess, if challenging enough, is such a mental workout that one game is enough. Both chess and video games can be addictive, but video games are often designed...

I have a camera that can shoot in 4K video, but trying to edit the footage is very laggy and my computer won't export the footage in 4K. I'd like to upgrade the computer I have instead of buying a whole new one. But I'm not sure what exactly I need to upgrade and what to upgrade it to. My...

A question to Vsauce's famous video about the Banach-Tarski paradox at 10:09: Can you really construct the hyper-webster like that? If you choose the order like that, you'll never get any words containing other letters than "A". Shouldn't you choose an order like A, ... , Z, AA, ..., AZ...

Continue reading...

Hi, I’m looking for video lectures on lattices in mathematics (or lattices in computer science) which might be related to number theory. Could anyone recommend some? Senmeis

hello! I've been trying to read through Sakurai's Modern quantum mechanics textbook ( My goal is to finish the first 3 chapters and understand the Dirac formulation of QM specifically) but I find myself stumbling at many places. Are there any video lectures on the internet that follows this text...

I saw a post here about calculating damage per second (DPS) and tried to modify it to my need. https://mathhelpboards.com/pre-algebra-algebra-2/formula-calculating-dps-damage-per-second-18847.htmlis the original post. My attack power is 46722 and I make 2.15 attacks a second, that come to be a...

Is it true, what he's saying from 04:28 to 04:56 ? I have my doubts, but I thought I'd better ask here.

There are been many threads at PF on the perception of color. I would like to share a good video on the subject, which contains many interesting visual effects. This is from the Technology Connections channel, which has many videos of interest to our community. I encourage you to browse around.

If I understand correctly, when we interpret our data about the universe it seems the big bang came from nothing and threw out everything. Is it reasonable to compare this to a video game? Games also start from nothing and have suddenly loaded everything. If the game's AI was able to analyze...

The Intl Math Olympics of 2011 had a problem that stumped many young participants except one who received a perfect score: Its called the Windmill problem: More here at AoPS: https://artofproblemsolving.com/wiki/index.php?title=2011_IMO_Problems/Problem_2

This is one of the most powerful and incredible short movies I have ever seen. (I got the link to it from a friend today.) It contains clips of interviews of American soldiers who were exposed to real nuclear detonations. What they have to say is terrifying, intense and important. That's all I...

Hi, googling for Voltaic cell I found this video about it. At minute 2:35 to 2:54 you can see that, without any electrical conductor connected between electrodes, in the Copper half-cell the metal electrode (Cathode) gets an amount of negative charges (electrons). Basically what described there...

Hi, I am currently studying for our third year solid state physics course. We follow chapters 1-9 From Charles Kittel's "introduction to SSP" Youtube has a lot of videos on solid state physics yet i am struggling to find any video source for lectures that follow the book of Kittel. I would...

Hello, I am beginning a course in thermodynamics in which we will be using the textbook "Fundamentals of Engineering Thermodynamics" (Moran, Shapiro Et al.). Does anyone know of a video series which covers similar topics as in textbook? I have the textbook, I am just looking for a supplement...

1) What is the relationship between buffer at encoder and buffer at decoder? 2) How much preloading is necessary to ensure no buffer empties over the length of the simulation I.e. what is the minimum no. of bytes that must be in the buffer? 3)How to estimate delay due to buffering? 4) What is...

SmarterEveryDay is posting a series of videos (this is the first one) on Youtube Video Identification hacking, what it is and how it affects what we see online. Its really good even though the notion of manipulating the Youtube algorithm is very disturbing.

I understand partly what he is saying, but can you discount the measurement effect as a feature of the world? Aren't measurement effects going on all the time between macroscopic and microscopic systems, making it in practice, at times, an indeterministic world? Or is he assuming that...

Hello. In my bachelor thesis I make motivational video experiments in physics (for high schools). I want to mention some already existing videos. I know videos from our country or channels from YouTube. However if I'm looking for some videos from Universities or professional organizations...