A candle burner, also known as a candle warmer is an electric warmer that melts a candle to release its scent. The advantages of using a candle warmers is the soot that often results from burning wax.
A science burner or what kind of burner?
The purpose of a cross over tubes on a gas burner is so that the fire ignited from the main burner can make contact with the gas coming from the other burners.
The best place to buy a tart burner is any home supply company. There are a variety of websites that specialize in selling tart burners, but if one is looking to have an in depth look at the burner they wish to purchase, any home supply company will be the best bet for one's purchase.
Not every candle burner is interested in a scent throughout the living area.
The purpose is the introduce the fuel gas in the burner.
safety feature of a gas burner
No recommended, oven glass is designed for a specific purpose. It you what to put 'glass' on a burner, buy a 'pan' or product for that purpose
accident
The purpose of a battery operated candle is for ones safety. It is used to help people keep safe as they are safe to use. You can buy these from online.
Bunsen burners are preferred over candles or fires because the Bunsen burner produces a much higher temperature (noted by the blue flame) and it is much easier to contain/control a Bunsen Burner flame.
i think the purpose is to heat up water and/or other liquids.
A Bunsen burner is a convenient way to supply a small, controlled source of heat.