h a l f b a k e r yWhat's a nice idea like yours doing in a place like this?
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The punching bag features touch sensitive sensors that
send
varying voltages to the trigger mechanism dependent on
how
hard you hit them with your heavy bag gloves.
A safe distance away, an upward pointing cannon has
carbureted fuel shot into its combustion chamber
triggered by
your
hitting the bag. Heavy hit, large explosion, light
hit,
small explosion.
A smaller version could just have the explosions come out
of the top of bag itself, but I'm thinking to get the effect
I'd want, these explosions should be several hundred feet
in diameter. Fireballs should rage from house size for
light punches to city block size fireballs for haymakers.
Whatever the size, every punch would cause an
explosion. This would be rad.
Fiery columns
https://youtu.be/6rqaYe31LMo?t=42
See annotation. [TomP, Apr 08 2016]
[link]
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// A safe distance away, // |
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// explosions should be several hundred feet in diameter. Fireballs should rage from house size for light punches to city block size fireballs for haymakers. // |
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That's not an "explosion" - or rather, not a detonation. A fireball, as beloved of Hollywood, is an over-rich fuel mixture burning in air. A lot of light and heat, but essentially just Act V Scene 5. |
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Pastry witheld pending a greatly increased risk (or better, certainty) of prolonged hospitalization for users. |
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For full effect, I'd want a pretty tiny delay. I already feel a
bit odd using guitar amp modeling equipment, and that's
supposed to be in the 5-15ms range. I'd want to punch, and
see an immediate boom. Trouble is, the explosions are
going to have to be distant.... the speed of sound is against
you there. |
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You could have large amplified speakers that relay
the explosions via microphones at the explosion
site directly to you. |
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Then you'd have an echo effect, original explosion
that you'd hear immediately coming through cables
to your amplification system and explosion delayed
by the speed of sound coming to you through the
air. |
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Playing percussion instruments through echo
devices are very cool. |
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It's like those wonderful effects you get when an A-10 does a
gun run, from the ground perspective at least. You see the
thing be destroyed, then you hear the thing being
destroyed, then you hear the gun firing. |
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Spraying and igniting the fuel will also cause latency. |
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// wonderful effects you get when an A-10 does a gun run // |
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Oh, yeah.... and when a GR-7 dumps all its CRV-7's at once on a single target... shock and awe.... |
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//A fireball, as beloved of Hollywood, is an over-rich fuel mixture burning in air.// |
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Very true: I watched a pyrotechnitian setting a pair of those up once. He dug two small holes in the ground and put a small black powder charge in each. On top of those went a few chunks of compressed cork and gallon petrol can and voila... 40ft tall fiery columns with obvious bits of 'stuff' flying from the base. [link] |
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It's better to slice the top off an empty (repeat EMPTY) propane or butane tank- the 11 to 15 Kg size- and put a B.P. maroon in the bottom, running the firing line over the lip. Then place a heavy-gauge polythene bag over the maroon and pour in a few, or not so few, litres of gasoline and zip-tie the top to prevent any of those precious hydrocarbons escaping prematurely. |
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By all means fill any remaining space in the bag with absorbant, flammable rubbish. |
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The walls of the tank contain the force from the lift charge and greatly improve the height of the flame, much more like an H.E. shellburst. |
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It's worth attaching a length of thin steel cable to the outside of the base of the tank - that way, when you have to make a run for it (because the sirens are getting closer) it's possible to drag the still-hot tank behind you when heading for your vehicle. Those things have serial numbers, and it's not wise to leave evidence for them to find. |
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