The things need to create this device are: 2 litre plastic watter bottle (or) 2 litre cooldrink bottle with cap, nail to make hole in bottle cap, glucose bottle's connecting tube with injection needle, calcium carbide stones, water, scissors, knife.
How to make device?
Take the bottle's cap and make a hole in the center of cap. Take the glucose bottle's connecting tube with injection needle and make the one end of the tube free and other end with needle. Fix the free end of the tube to the bottle's hole. Fix it without any gap or hole. You will find a inbuilt controller attached to tube, keep it as it is.
Now fill the can with 600ml of water and put some 4 calcium carbide stones on it and mix it well and quickly close the can with the cap made by us. In the cap close the controller and open it slightly. Keep some flame on the edge of the needle it will catch flame soon and starts to produce flame with high pressure. This is due to the formation of acetylene which is a flamable gas.
The reaction is:
CaC2 + 2H2O ? C2H2 + Ca(OH)2
Calcium carbide + water = Acetylene.
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