Gun Powder and alcohol
Yes
No. That would be stupid!
to make fire. when you are out in the wilderness and don't have any matches or a lighter. you can rub two sticks together for a while and it will make a fire!
rubbing your hands together... eventually making heat.. and eventually fire! mu hah hah
Friction that is caused by the movement of two surfaces against each other is known as kinetic friction. This is different than static friction which is opposition to motion before the motion occurs.
Friction by spinning a wooden stick in a hole in a second piece of wood. A wheel bearing not properly lubricated
stick
Fire by friction!
Rubbing two sticks together will generate heat to start a fire.
To start fire with sticks, the sticks need to be very dry. Fire will be started by rubbing the sticks continuously together. Fire will be produced as a result of friction.
No. The action of rubbing together two Doritos chips would crumble them before sufficient friction could result in enough heat to cause combustion.
Ralph thinks that the beast on top of the mountain top is preventing them from the fire
Mechanical energy is being converted to thermal energy as the scout rubs the sticks together, creating friction that generates heat to ignite the fire.
By rubbing 2 pieces of wood together which then made a fire.
No. That would be stupid!
by rubbing two stones together
The friction caused by rubbing the sticks together causes heat causes the fire
Yes, people in prehistory invented this kind of lighting a fire. Rubbing two dry sticks together makes heat and if you are patient enough it will make fire.