Slow-motion rockets: scientists combine liquid butane with a bottle of cola in a deadly variant of the Mentos experiment in the backyard
- Two scientists are filming themselves while performing a liquid butane reaction in slow-mo
- Add a deadly variation to the Mentos and Coke experiment in the backyard
- The pressure builds up within seconds while the butane boils and forms gas
This is the explosive moment when a few experimental scientists film themselves by combining liquid butane with a bottle of cola before they are turned upside down and the rocket shoots off.
In a deadly variation on the Mentos and Coke experiment in the backyard – which is already a dangerously powerful combination – the YouTube scientists decided to replace the Mentos with highly reactive liquid butane.
Scientists from Thame, England, who call themselves The Slow Mo Guys, set up the experiment in a remote quarry and covered themselves in protective face masks and lab coats.
Specialized in making 4K slow motion videos & fast responses The Slow Mo Guys, Gavin Free (Gav), 31 and Daniel Gruchy (Dan), 31, set their high resolution cameras only a few meters away from the reaction site, with garbage bags placed over the cameras to protect it against the Coca Cola spray.
Then explained: & # 39; There is an interesting scientific experiment with the interesting properties of butane.
& # 39; Because the boiling point is approximately 0 degrees Celsius (32F) – it is stored as a liquid in this can and is not a super-high pressure in the can. & # 39;
Within a second after the Coke bottle has been turned down with a layer of liquid butane, the bottle shoots out of Dan & # 39; s hand, to his surprise
He shows how the butane escapes as gas when it is released with the can in an upward position.
WHAT IS THE MENTOS AND COKE REACTION?
The reaction is caused by a process called nucleation, in which the carbon dioxide in the soda is attracted by dozens of small pores on the surface of the Mentos, causing so much pressure that the soda bursts.
Every carbonated drink has a similar effect, but diet coke became the most popular after it turned out to give the best results.
In 2006 the TV program MythBusters concluded that the potassium benzoate, aspartame and CO2 gas in the diet coke, in combination with the gelatin and gum arabic ingredients of the mentos, all contribute to the formation of the foam.
It then turns the can downwards (such as when you fill a lighter with fuel) and shows how liquid is released when the nozzle points downwards.
When filling the coke bottle with butane, he explains: & # 39; Because the butane is less dense than coca-cola, it will sit on top in a small layer, and it will boil and then vapor will come from the top & # 39;
Add: & # 39; When I turn it upside down, it happens because the butane is boiled almost immediately, because it has all the contact with the cola that is warmer than the butane, causing it to evaporate immediately.
& # 39; This increases the pressure in the coke bottle, causing the rapid expansion of gas escaping from the bottom to cause a rocket effect. & # 39;
The couple explained how the same reaction can be done with water, but the effects are not as pronounced if there is no carbonation – with coca-cola the carbonation comes out of the solution and contributes to the gas in the bottle and still gives more of a rocket effect.
Here Dan loads the coke bottle with liquid butane while Gav watches and gives a safety disclaimer
Then he remains in a cloud of vapor after he has turned the coke bottle upside down and sees him rockets a fraction of a second later
Within a second after the Coke bottle with a layer of liquid butane has turned to a downward position, the bottle shoots out of Dan & # 39; s hand, to his surprise.
Then they tried the experiment with a liter bottle of cola, which had slower results. And then again with a medium – & # 39; the best & # 39; due to the ease of its size, allowing rapid movement in the inverted position, which subsequently caused a faster response and greater thrust.
Gav offered a safety disclaimer that viewers & # 39; certainly not try at home, the bottle can fly up and hit you in the teeth or eyes and it is also incredibly flammable & # 39 ;.
Specialized in making 4K slow motion videos & # 39; s of quick responses The Slow Mo Guys, Gav and Dan, set their high resolution cameras & # 39; s just meters away from the reaction site
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