First, please don't try to recreate anything you see in this video as anything involving fire can potentially injure you. Secondly to anyone saying that the sparkers wrapped in the tape is a bomb that's simply not correct if it's done anything like in this video. It is never going to explode with just a few wraps of tape and open ends. As soon as lit the tape just burns and both ends are open for gasses to escape. in order for there to be any potential for an explosion it has to be airtight and wrapped up many many many times. It would have to be done with intention, it's never going to happen accidentally. Any time you try to contain rapidly expanding gasses you have the potential for an explosion but that's not what's depicted in the video.
The red sparklers will blow up, trust me I use work at fire work stand I was 16. If you had added a bit more tape boom. The green and gold ones don't work. Remember to pull one out for wick.
@@SoundsLegit71 The red ones will blow up? How is that possible if the gasses are not contained in any way? by that logic then one single red one would also blow up. There are videos of people lighting thousands of sparklers together and no explosion. They can only explode if you fully trap the gasses which is not what I do here at all.
Yes Sparkler bombs are a real thing. I have made many of them. Duct tape a package worth, leave one extended. Light the extended on, when it hits the bundle BOOM! Will easily take a hand off, leave a crater in the ground & is easily lowder than a shotgun. Extremly dangerous. The standard silver colored on the wire, work just fine. There's no debating this, as I said, I have made +100 in all my 4th of July days. Yes, it's real, it works.
The third jug effectively turned into a simple pulse jet... that was awesome as the fuel ignited and turned to thrust and exhaust it created a negative pressure in the jug which sucked in more oxygen for re-ignition a simple pulse jet engine!!!😁
One possible mistake - the 'candle pressure demo' at 10:06 may have a small amount of gas expanding and contracting, but the main reason the liquid is sucked into glass is that as the candle burns it uses up the oxygen, and the CO2 given out doesn't take up as much volume. This is what I was taught as a child, anyway!!
I was taught that the chemical reaction was the (main) reason as well, however I have no doubt temperature change also has an effect, and that both factors work to decrease the volume. I don't know what the relative strengths are. One interesting thing you can see is when the container first seals on the water surface, there are some bubbles that escape, which means that right then the gas is expanding. Presumably a bunch of air could leave, then as soon as it begins to shrink it would seal and draw water. Great vid, I especially like that you don't feel the need to put a bunch of filler in between 3 fast tricks.
You are right about the CO2 being produced, which takes up less volume, that's why the water rises, well that's what I was taught when we did the same experiment in science class, so we were taught the same thing, so it's got to be correct.
@@graybot8064 A thin layer of clear tape loosens up when hot, allowing a bit of expansion, so it just slightly contains the oxygen produced in the reaction of the burning sparklers and shields them from the cooling effect of the water, allowing them to continue burning under the water. If it's wrapped again with electrical or packaging tape (the stuff with nylon strings in it) it will not have room to expand, the reaction is confined and quickly explodes. Believe it or not, dynamite and c4 react the same way. They'll burn like a wax candle, but don't try to step on it to put it out, or they go boom in a big way.
@@FingerinUrDaughter Cold water perhaps, but certainly not ice. As you might have said, anyone who understands thermodynamics, and the specific heat of water, would understand why your assumption is incorrect.
This is a reupload of an older video with a section removed due to demonetization. I've added a few new sections so I'm not just uploading the same video again. Apologies for not posting in so long! New video coming in around one weeks time. Thanks for watching!
Do the fire-nado trick, but spike the methanol with salt water (or suspend a salt water soaked cotton ball above the flames) and light the room with sodium lamps, and you'll have a twisting column of black fire.
When I was a young kid my dad ordered science kits every week. The gallon jug and egg trick was one of the first science experiments sent. But we used a stick match.
Back in the day, when you could smoke in restaurants, one of my friends and I always delighted in setting fire to amaretti biscuit wrappers rolled into a cylinder when we went to Italian restaurants. They behaved exactly like the teabags. I imagine people would have a fit if you tried that these days but in the 80s, no-one batted an eyelid.
10:15 I agree with what you say but in this instance there are two forces at work, the force that you have mentioned and the flames using up the oxygen within the glass tumbler. The liquid level will have risen to around 18% of the volume of the tumbler.
Fun tip. You can make the flame tornado trick work with fine-mesh steel. It interrupts air flow enough to allow the vortex to form. It isn't as tight as this one, but it will work if the air outside is calm. The steel of course won't melt, but it will still get hot enough to burn you.
That first one would be amazing as a fire pit outside. "okay everyone gather round the fire pit!" *That's a fountain* "nope" >lights the water on fire "Fire piiiiiit!"
"Gas expands when heated and contracts when cooled" True, but the candle burning in the glass is consuming the oxygen, and as oxygen is about 20% of the gas in the glass, it's mostly that which causes the fluid level to rise at the end. The expansion due to heating only drives a small amount of gas out of the glass in the early stages of the demonstration.
@@Arikayx13 I thought most folk would work this out, but here you are.... A third of the oxygen is converted to water vapour, which then condenses, hence the rise in the water level. Did you not know this? The equation is something like this. C25H52+38O2(g)⟶25CO2(g)+26H2O(g) Carbon dioxide is also soluble in water, so some of that won't be around to fill the space above the water in the glass, too. Lavoisier would be proud! The remainder of the rise in the water level is due to the expansion of the air during the initial heating. Does this complete the picture?
@@tasmedic If the water level is rising because oxygen is being turned to water vapor which is creating that much negative pressure, the majority of the rise should happen before the candles are out, not after. You can do the experiment yourself. Take a plastic bottle, dash in a bit of alcohol, shake, light, so you now have hot combustion products but no fire, place bottle upside down in a bowl of water, watch as the denser air pressure around it pushes air into the bottle.
@tasmedic, looks like you fell into the "Make a deliberate mistake in your video to drive more engagement in the comments" social media marketing trap.
@@tasmedic I changed my original reply, but I’m curious if you did the math or the experiment fully before acting smug? Or did you repeat what you were told, but smugly?
In the case of the Candle Pressure Demo is more like Oxygen % in air Demo, water rises due to the consumption of oxygen, there was no time enough to eat the air inside, specially with just one candle.
4:27 - *Correction - its a Ferrocerium pellet, not an actual chunk of actual flint. Sure it works in similar ways but produces more sparks with less friction then flint and why its more commonly used. In conjunction with a magnesium block used to shave off bits, the ferro rod is an excellent, water proof, sturdy, and reliable method of fire starting in any wildness or fire-starting situation.
9:40 I Remember doing something like this once with a bottle of Everclear that I had just finished. I don’t remember what I was expecting to happen, but I do remember that it startled me a lot.
Ok. It’s official I’m a pyromaniac. I knew every single thing you were gonna do the second I saw you setting it up. Good stuff though. I still haven’t gotten the cyclone down yet.
Try wrapping about twenty-five or so of those metal rod sparklers up nice and tight with electrical tape and leave one sticking out. Light the single one and get the hell out of the way! It's an explosively good time!
