He's wrong about the first one. You should be worried. The geometric series that you get by progressively halving the previous number, its sum always gives you a finite number.
Sir, if two marbles dropped together effects two marbles at the opposite end. Then perhaps if you drop just 1 marble of :equal weight and equal surface impact area. Would two marbles still want to bounce off at the opposite end?
@@CuriosityShow Actually, Rob, it's the conservation of energy, not conservation of momentum, that explains why you always have the same number of marbles moving before and after the collision. Lets say you pull one marble back and let it go. After the collision there are multiple results that would satisfy the conservation of momentum: you could have one marble moving at the same speed as the first (the reaction we always see), or you could have 2 marbles moving at half the speed , 3 moving at 1/3rd the speed, etc. All those results would satisfy the conservation of momentum, which is just mass times velocity, but you only ever see the first reaction, and that is because that is the only reaction that satisfies the conservation of energy, 1/2 mass times velocity squared.
Glass doesn’t just shatter anytime it is hit. It needs forces applied to it either at very high amounts (not nearly enough from a swinging marble) or you need to stress/shear the glass at an angle (not really possible with a round marble)
Could you please start running the audio of these videos through a sharp low-pass filter at ~14khz so we don't have to put up that really high pitched 15.5khz tone that about half of these videos have? It shouldn't impact the actual intended audio of the video.
Sorry, but we don't get any of that high pitched sound here. These have to be uploaded directly from the o;ld videotapes and there is not much that we can do the alter that - Rob
Open the audio stream of the video file in any program that displays a spectrograph (Audacity is a free example) and you'll see the fine yet loud line at that range. If you're just listening to it, it could be that your headphones lack the range or your ears are too old (ears of older people cannot pick up sounds above a certain frequency often) I'm sure there's a step during your digitization process you could include this low-pass, but I understand it would mean adding an extra program to the workflow etc. and that's a hassle. Big fan by the way, keep it up regardless.
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He's wrong about the first one. You should be worried. The geometric series that you get by progressively halving the previous number, its sum always gives you a finite number.
*I need to try this*
This was very helpful
Thank you
Patricia
You are most welcome - Rob
I want this marble
This is neat! Does the gelatine/milk/water recipe for glass glue you have given us work on this project as well?
I don't see why not, although the gelatin one, being organic, may not have as long a shelf life afterwards - Rob
Sir, if two marbles dropped together effects two marbles at the opposite end. Then perhaps if you drop just 1 marble of :equal weight and equal surface impact area. Would two marbles still want to bounce off at the opposite end?
Not quite sure that I understand. It is a matter of conserving momentum, so mass rather than surface area is the key - Rob
The answer is very simple. Build it and do the experiment. The instructions are right here in the video.
No problem!
@@CuriosityShow Actually, Rob, it's the conservation of energy, not conservation of momentum, that explains why you always have the same number of marbles moving before and after the collision. Lets say you pull one marble back and let it go. After the collision there are multiple results that would satisfy the conservation of momentum: you could have one marble moving at the same speed as the first (the reaction we always see), or you could have 2 marbles moving at half the speed , 3 moving at 1/3rd the speed, etc. All those results would satisfy the conservation of momentum, which is just mass times velocity, but you only ever see the first reaction, and that is because that is the only reaction that satisfies the conservation of energy, 1/2 mass times velocity squared.
good explanation
#AmzadCreation
many thanks - Rob
Love your all shows from India
I thought the shows were from Australia.
I never understood how marbles don't break when they hit each other ?
Glass doesn’t just shatter anytime it is hit. It needs forces applied to it either at very high amounts (not nearly enough from a swinging marble) or you need to stress/shear the glass at an angle (not really possible with a round marble)
Could you please start running the audio of these videos through a sharp low-pass filter at ~14khz so we don't have to put up that really high pitched 15.5khz tone that about half of these videos have? It shouldn't impact the actual intended audio of the video.
Sorry, but we don't get any of that high pitched sound here. These have to be uploaded directly from the o;ld videotapes and there is not much that we can do the alter that - Rob
Open the audio stream of the video file in any program that displays a spectrograph (Audacity is a free example) and you'll see the fine yet loud line at that range. If you're just listening to it, it could be that your headphones lack the range or your ears are too old (ears of older people cannot pick up sounds above a certain frequency often)
I'm sure there's a step during your digitization process you could include this low-pass, but I understand it would mean adding an extra program to the workflow etc. and that's a hassle.
Big fan by the way, keep it up regardless.
Or take your head out of the microwave oven? I have no bloody idea what this guy's even talking about.
@@jechet10 Everyone has to pretend they are an expert at something. You took some audio classes. Yay! Good job....
26 y.o. and don't hear a high pitched tone :)