Question

How to become a black-hole :D (in 4 mins)

So I am creating video series on gravity and stuff. Fast videos. Let me know how you like it ;-)

This one is on escape speed
http://youtu.be/YhtxCvN9Uik

Answer 1

can you really do it

Answer 2

Yuppeerrss :D

Answer 3

Feedback :D. Sorry for annoying you guys.. but since m just starting up.. I need reviews badly for each video I make.. (and critics :P)
@ganeshie8 @UnkleRhaukus @dan815 @nincompoop @perl @Kainui

Answer 4

@sammixboo @Zale101 @bibby @ShadowLegendX

ok.. thats it.. guys give me feed backs!! chop chop .. its fun 4 mins video on raw concept!

Answer 5

nice well made :) , Id suggest maybe slowing it down just a bit when you are speaking about potential energy and kinetic energy but then again this is good, people can always re watch the videos over so..

Answer 6

Awesome!

Answer 7

@dan815
Thanks .. yea I did feel, I was going over it little fast.. But i was thinking since we have the power to pause, people could pause.
But if I make longer, and people get bored, then I have lost viewers and their referrals :D

But yes.. I need to keep the speed optimum, so this is my second video like this, and maybe in a couple more, ll hit it right :D
Also thanks unkle :D :D!!

Answer 8

I liked this a lot, it was quick and really utilizes the technology. If it's too quick, you can pause it or even use x0.5 speed if that's what you need. It links you directly to where you need to go if you have questions (I'm assuming, I didn't click any of the links yet but I'm gonna go check them out soon, I subscribed)

As far as content is concerned I feel like I actually learned several pretty awesome things. I mean, of course I knew there was an escape velocity but I never really thought about how we could use that same simple little calculation to reason out why earth has an atmosphere and the moon can't! On top of that, this also gave me the most concrete definition for a black hole I've ever heard of. I mean, I guess I just thought of black holes as being super dense masses that light can't escape but I never really thought you could calculate this sort of thing classically, so that was really pretty cool.

I'm gonna check out the stuff about how you derived that expression, I don't hear people use reasoning like "at infinity, etc, etc..." ever, but I personally use it in my reasoning as a way of thinking all the time, so it was nice to see. For example, when I think of the divergence test to see if a series diverges, unless the final term "at infinity" is 0, then of course there's no possibility that the series can converge since "at infinity" any number other than 0 means you would still be adding finite quantities, etc...

Anyways, yeah this ended up being longer than I expected but I enjoyed it a lot and hope to see more!

Answer 9

@Kainui

Thanks a lot for that detailed feedback.. really means a lot.
And about the links.. well I haven't put them yet.. if you hover you ll see 'coming soon'

So what I am doing as I make a video, i think about what other links are required (which needs a detailed explanation and so requires a video of its own)
So Now ll start doing all those linked videos and then put a link there to talk about their applications back to this video
and so basically I want to connect all the dots.. (the dots being the videos) each dot circling around a particular concrete and compact concept and its pre requisites and applications connected to other dots :) :) :)!

Answer 10

Well, since advice/ideas are free for me to give away and you seem to be looking for some, here's just a bunch of opinions and stuff. Feel free to throw away what you don't like, but whatever here goes:

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Yeah I think that sounds like a great idea! It lets you sort of explore whatever you like, one pitfall you might run into is you run the risk of having some branches that are either really long to get to the bottom of, or eventually have a cycle somewhere haha.

The problem I have with Khan academy type videos is they sort of don't say what needs to be said succinctly enough. I am not saying it's not useful to have a relaxed environment with someone walking through a problem one step at a time. It kind of seems like you're supplying more like explanations, justifications and applications of concrete mathematical formulas in physics. Sort of like pieces of the subject to help build intuition. At least, this is my kind of impression, I'm not trying to tell you what you are!

I guess when it comes down to it, I see math and physics as collecting ideas, and the common youtube approach to science/math seems to either be mathless popsci, worked homework style problems, and that's about it. I guess if I was to compare your videos to anything, they seem like they are kind of like the numberphile and all those videos, except instead of just being amusing interesting ideas, you also have them connected to others.

One thing I'd like on the video is in the description have a chronological listing of links as they pop up in the video. Since it's so fast paced it would be nice if they were just listed at the end for me to easily click them without having to remember or find where exactly the links were. Put an overview of the video with time links in the description as well... And sure, why not, add a list of links in the description and at the end of the video to show where it falls in a logical tree so you can go more complicated or less complicated.

Alright, hope that gives some fun ideas to kick around, good luck!

Answer 11

A cycle would be awesome :D....I ultimately want them to be all connected haha :D

Most famous science videos on youtube are all non academia. Look at veritasium and minute physics (the ones i love the most) or Vsauce for that matter, they all have amazing approach, but tomo when you are studying for exams you are not going to be watching them. So they are fun and brilliant but doesn't help academics

Academic videos like Khan academy or bunch of others, well.. are quite slow paced, and they will attract only a limited crowd. Now yea Khan academy was sort of first of its kind so it went boom, but there are so many, and all are basically class room teaching.

So what I want to do is
a) Academic purpose. I basically want to cover the science along with the math, so derivations and problems
b) I want it to be quite fast.. so it will attract more, cause you can look at specific concepts when you are in a hurry. I guess it would work when you are doing a last minute revision (which would be a HUGE market if you can tap into it :D)
c) I also want to keep science in it, with good animations, so it would attract atleast a small percentage of non-academics also. (I want to include non academic videos too)

SO I want to make a blend

And most importantly, there aren't any great science channels from my country India. (which I feel is sad). Most teachers are only after making money and taking tuitions and extra classes here, and hardly anyone is into technology.
SO this is an experiment..

And you are right about the annotations. I Should mention them in the description and links.. I shall do that.. thanks for that valuable advice :D