Heat is transmitted through conduction (touch), convection (flowing) and radiation (rays).
When you hold your hand beside a flame the radiated heat will reach you (it radiates out in all directions like the light), but not much of the convected heat, because convected heat flow is upwards (most things expand as they heat up, so they get lighter and rise), and you will not get heat from conduction unless a burning spark flies out and touches you and conducts the heat directly.
With your hand above the flame you are receiving heat from radiation and convection.
With your hand in the flame you would get heat from radiation and convection and conduction.
The hottest part of a flame is the position where most intense combustion is occurring. If you look at a flame there is usually a small more transparent area near the base of the flame. The boundary between this and the bright area above at the centre of the flame is the hottest area. (This is why when using a gas welder you focus this part of the flame on the metal area to be welded.)
I think its because the heat his radiating off the flame towards cold areas. Therefore your finger doesn't burn IN the flame but on the outsides of it.
because the hot air raise up which touhes our plam
Because the heat of the flame goes upward and it doesn't go sideways just like hot air goes up and it doesnt go sideways or down.
heat travels upwards
because heat rises
Air near the flame is heated and rises, thus reaching your hand. This is heat transfer by convection.
it gets warm
Mostly the heat you feel will be radiation from the flame, which travels in straight lines. Thus it hits the side of the hand nearer the flame.
Heat is transferred to your hand by conduction. The particles of the wax are moving faster than the particles in your skin and energy is transferred by collisions between the two sets of particles.
You cant cause the molocuels are to tightly packed thus making a barrier like a forcefeild
The process of heat rising would be the earth process in force if a candle is touched on the side and it is cooler than a hand over the candle. The hand over the candle will get burned because of the direction of the heat of the flame.
Yes it is - since heat rises.
Radiation
Air near the flame is heated and rises, thus reaching your hand. This is heat transfer by convection.
it gets warm
Fire can make itself bigger because it is a self controlled gas. But I put hand sanitizer in a candle and then lit the candle and kept squirting sanitizer in the flame. The fire roared! Sanitizer can really get a flame going!
To snatch the flame from Master ShangXi's hand, youplace yourcursor above the NPC's head, where the quest indicator is, Thisallows you to easily grab the flame.
A brandy warmer is an alternative to warming the brandy balloon by hand. It is a wire cradle with a small T light candle at the base. You light the candle and place the brandy in a brandy balloon in the cradle over the flame and let it warm to the right temperature. Quicker but not as civilized as warming it in your hands!!
Mostly the heat you feel will be radiation from the flame, which travels in straight lines. Thus it hits the side of the hand nearer the flame.
by keeping your hand over it par.
Eternal Flame by The Bangles
candles are safe but you have to be careful not to get too close to them to where your hand could touch the flame. Many people have done that before just to see what it would do and many found out the incorrect way.Mackenzie