Simulating Blackholes, Lightspeed TVs, and The Clever Geometry of Spacetime!
Audience: undergraduate
Tags: physicslinear-algebrarelativitycomputer-graphicssimulationspacetimedifferential-geometry
An undergrad / very-advanced-highschooler level explanation of the concept of 4D curved spacetime, grounded in the concrete problem of rendering blackholes and other spacetime metrics. Uses extensive animations I created using code, Keynote, and Blender to facilitate explanations. Almost anyone should be able to enjoy about the first 15-20 mins of the video, but some linear algebra knowledge is required for the latter part. Thanks a lot for watching and judging!!
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peeked my interest at the start but i kind of felt bored after some time
This video was very difficult to judge. On the one hand, I am extremely impressed with what the creator has done here. But on the other hand, as a teaching resource, I feel like this video will not be very useful. Don’t get me wrong, I think there is a massive amount of information contained in the video, but it’s really just too much for a student to make sense of, in my opinion.
To be constructive, I think the biggest problem is that the narration just goes too fast throughout the video. The topic being discussed is quite complex, and when the narration goes so fast the viewer simply doesn’t have any time to contemplate what is being said. And then the video just keeps going on and on and on, and it becomes extremely frustrating for the viewer. I know, it’s a video so I can stop it whenever I want, but nobody wants to continually stop a video every 10-15 seconds to try to contemplate what is being said. For me, I had a very difficult time watching this video all the way through, and I suspect the target audience will feel similarly.
So, as I said, this video was very difficult to judge. Again, the video is extremely impressive from the standpoint of what is packed in here. The graphics are amazing, and the topic is very interesting. But, unfortunately, I think it falls well short of being a useful teaching resource, and I think the target audience will end up frustrated and confused, and will ultimately learn very little from this video. Hence, my score is lower than I’m sure the creator was hoping.
Waow ! Very difficult matter (I will have to watch several time) but clearly an outstading approach.
Very well done! Clear motivational slides, nice walk through of physics, math and programming.
Very cool. Have you considered open sourcing the code?
The video is outstanding visually, the topic is super interesting, and the explanation is very professional. The video is a bit hard to follow, jumping from one thing to another very quickly. The video is very long, and there is no clear sense of “progress” towards a goal. It feel a bit like he is jumping between random bits of information that at the end come to a result. Overall, very interesting video, would recommend adding an “overview” of the video at the start.
Absolutely outstanding, beautiful graphics, clear explanation, simplified without losing track of what it’s trying to convey.