The concave face of the mirror concentrates the sun's rays onto a small area of the paper. This concentration heats up the paper to flash point, after which it will burst into flames.
When a candle starts burning heat energy is transformed either by radiation or conduction or convention(in case of liquids).
The elements or compound between which the force of attraction is less and they are not abele to transfer heat to the other bound compound or element and the material starts burning is called a bad conductor of heat for example....- wood , mercury
Chemical energy is held in the bonds between the atoms of molecules and is released when these bonds are broken, as in burning. Such a reaction usually starts by applying heat to activate the burning process. As the chemical burns, bonds break, and energy escapes as heat and light.
Carbon fusion is a stage towards the end of a star's life. See para below and link Carbon burning starts when helium burning ends. During helium fusion, stars build up an inert core rich in carbon and oxygen. Once the helium density drops below a level at which He burning can be sustained, the core collapses due to gravitation. This decrease in volume raises temperature and density of the core up to the carbon ignition temperature. This will raise the star's temperature around the core allowing it to burn helium in a shell around the core. The star increases in size and becomes a red supergiant.
It starts to drop the instant it leaves the barrel
Standing on the top of a concave slope means you can not see down to the bottom due to the bulge in the middle. A concave slope starts gently and gets steeper, once over the bulge, near the bottom. Standing on a concave slope means that you can see the bottom of the slope. A concave slope starts off steeply and becomes less steep near the bottom.
why Covering the crucible with its lid as soon as the magnesium starts burning
Mirror, Mirror by Jane Taylor
Mattress
No, it starts burning a Millisecond after you put it in your mouth.
Tooth Burn
glass mirrorgel (shower gel)glass mirror
Press and hold the desired "Home" garage button on the mirror until it starts blinking (approx 20 seconds)… Do not release… Press and hold the button on the hand-remote until the the light on the mirror starts blinking at a much higher rate. Tip: Hold the hand-remote approximately 4-6 inches from the mirror. Done.
not to long at all you need to fill it up
Because the bread dries out as a result of the heat then starts burning.
yes because there is friction and friction produce sparks and it starts burning.
When it is burnt it starts burning as a green, then towards the end as the electrons start to settle right down it starts to burn orange with a touch of green.