Creating a Flammable Bouncing Ball: A Scientific Approach

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Discussion Overview

The discussion revolves around the feasibility and methods for creating a flammable bouncing ball, intended for photography and novelty purposes. Participants explore various chemical approaches, safety considerations, and the physical properties of materials involved.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses a desire to create a flammable bouncing ball for photography, noting that previous attempts to set regular balls on fire were unsuccessful.
  • Another participant suggests soaking the balls in flammable solvents like acetone, referencing a "flaming balloon" trick, but expresses doubt about its effectiveness.
  • There is a discussion about the role of acetone in making the balloon flammable, with questions about whether it alters the material properties of the balloon itself.
  • Participants propose using alternative ignition methods, such as paper fuses, and discuss the challenges of timing and safety when igniting the ball.
  • One participant raises concerns about the potential hazards of melting rubber and shrapnel from a burning ball, suggesting that the density and smoothness of the ball's surface may hinder combustion.
  • Another idea presented involves soaking polymer balls in kerosene and drilling holes to improve oxygen access for combustion while maintaining bounce quality.
  • There is a comparison made to lighting flour, emphasizing the need for vaporization to achieve combustion.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best method to create a flammable bouncing ball, with multiple competing views and suggestions remaining throughout the discussion.

Contextual Notes

Participants express uncertainty about the effectiveness of various methods and the safety implications of creating a flammable object intended for bouncing. There are unresolved questions regarding the chemical modifications needed to maintain the ball's bounce while making it flammable.

SkepticJ
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No, I'm not crazy, nor will use them in an unethical manner. I simply want a novel subject to photograph for Advanced Photography (The judges probably haven't ever seen such a thing.) and to use on the 4th etc. I've tried setting bouncing balls on fire, doesn't work. How can I make them, or one from scratch, that is flammable to the point where it won't go out even when bouncing at high speed into the sky?
 
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I remember hearing about the "flaming balloon". Basically, this guy filled it up with hydrogen, soaked it in acetone, and then lit it and let it fly.

I guess you could try soaking the balls in some flammable solvent like acetone and then lighting it. I doubt this will work. Ideally, you'll need some sort of fuse so you won't burn your hand off.
 
Cesium said:
I remember hearing about the "flaming balloon". Basically, this guy filled it up with hydrogen, soaked it in acetone, and then lit it and let it fly.
I guess you could try soaking the balls in some flammable solvent like acetone and then lighting it. I doubt this will work. Ideally, you'll need some sort of fuse so you won't burn your hand off.

So what does the acetone do in the balloon trick? Make the balloon latex itself flammable?

Where do I get fuses? I've wondered this for years, because the fuses that are on some fireworks aren't nearly long enough. So I've wanted to modify them to give me time to get away and actually enjoy watching the thing go off; instead of running for my life.
 
the acetone put on the balloon is what would burn at first. If the actual rubber of the balloon was burning, it wouldn't stay a balloon very long, it would pop. It is like the trick where you put alcohol on your hand, then light your hand on fire. As long as you do it right, your hand is safe while the alcohol burns.
Coating a ball with just about any type of flammable liquid would work. Light it on first, roll it off a table, and quickly take the picture.

As for fuses, a really cheap-o verion I have come to use in some circumstances is a piece of paper. tear a paper strip and set it against the object you want to light, light the other end of the paper, and (assuming the paper doesn't blow away or go out), the fire will evenually move toward the other side.
 
mrjeffy321 said:
the acetone put on the balloon is what would burn at first. If the actual rubber of the balloon was burning, it wouldn't stay a balloon very long, it would pop. It is like the trick where you put alcohol on your hand, then light your hand on fire. As long as you do it right, your hand is safe while the alcohol burns.
Coating a ball with just about any type of flammable liquid would work. Light it on first, roll it off a table, and quickly take the picture.

As for fuses, a really cheap-o verion I have come to use in some circumstances is a piece of paper. tear a paper strip and set it against the object you want to light, light the other end of the paper, and (assuming the paper doesn't blow away or go out), the fire will evenually move toward the other side.

Ah, makes sense.
If I have to do it that way, so be it. I'd much rather alter the chemistry of the ball itself, without ruining the bounce. Bouncing balls are intentionally made non-flammable correct? They're made from polymers made from hydrocarbons. You can't ask for much better burning stuff than hydrocarbons or materials made from them; so what's added to keep them from burning well?

I've used those, but I was thinking more along the line of fuses with gunpowder, or whatever it is, in them that makes them burn fast.
 
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As much as I would love to see a Flaming Bouncy Ball, the melting rubber sticking to the surfaces of bouncing and the introduced shrapnial would be a turn down.

Also try soaking the polymer balls in Kyrosene (spelling), for 10-15 minutes and see if that does the trink in breaking down enough of the surface for the ball to ignite. Most of those balls are very dense, and very smooth on the surface, that makes it hard to get enough oxygen to combust. Also another idea is porting the ball by drilling many small holes in the structure to allow it to vent while keeping its bouncy qualities.

Its like trying to light Flour, you can't light a pile of Flour setting on a table, but if you vaporize it, your going to need to regrow your eyebrows for a month.
 

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