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What kind of lens would let you focus the sun's rays to start a fire?
Wiki User
∙ 14y ago
convex
Wiki User
∙ 14y ago
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How do you visualize a psi ball?
To see the Psi ball you must totally focus and concentrate on it, Hours of Meditation would increase your chance of doing so. If your interested in doing this kind of stuff i recommend that you start with less challenging practices and learn about the body and its chi points and how to use them.
What kind of heat you feel when you put your hands above a fire?
convection
What kind of energy does fire use?
The chemical energy in whatever fuel is burning.
What is the earliest source of energy used by man was?
Depending on what kind of energy you are talking about... For millions, nay billions, of years, our ancestors ate food, so the energy source would be anything from which we got food. If you mean other than food, like technological uses, that would probably be wood, used to make a fire.
Fire is the change of what kind of energy to what kind of energy?
chemical potential energy (in the fuel being burned) to heat (thermal) energy and a little light energy.
What kind of lens would let you focus the sun rays light to start a fire?
A convex lens would focus sunlight to the point that it could start a fire.
How would one extinguish a kitchen pan fire?
A kitchen pan fire is most likely caused by grease. The best option for putting out this kind of fire would be a fire extinguisher. Never use water on these kind of fires.
In olden days civilizations in south America use a lens to start a fire what kind of lens did they used and how did the fire start?
Well what u are refrerring to is the process of refraction. They would be using a convex lens. this lens has the ability to refract all the light rays which come from a far distance (known as infinity in physics) towards a common point (called focus). So obviously if all the rays reaching the lens from the sun are refracted by a convex lens they would heat up the point at which all of them converge. this started a fire. this can also be done with a magnifying glass as that also has a convex lens. TW K
Can you have a fire in an incinerator in a garden?
It would depend on the kind of garden you have.
What kind of mirror focus light rays to a point?
A parabolic mirror would do the job.
What kind of degree do you need to become a actress?
Majoring in Theatre or Film with a focus on acting would be a good way to start. Different companies have different requirements for their actors, so it would also depend on where you're hoping to work.
What kind of mineral can be set on fire?
Coal would be one example.
What ways could early man kind start a fire?
smashing stones together , turned out they were flint
In olden days civilization in South America used a lens to start fire.what kind of lens did they use and how did the fire start?
They Used a Convex Lens
Why does the hose in the fire engine not catch alight?
because the hose is fire-retardant. I would see it as kind of pointless to have a fire-hose that catches on fire. it just... defeats the purpose
What would cause smoke and sparks from exhaust pipe of ford focus?
what kind of gasoline are you running? and what color is the smoke?
What kind of spark plug is best for a 1979 corvette?
I would use split fire
