Using just an orange and a little cooking oil you can make a candle that glows interestingly in the dark.

Necessary materials

– Orange
– Cooking oil
– Knife
– Scissors
– Lighter

Step by Step.

-En primer lugar, cortar la naranja por la mitad. Si desea hacer una vela más alta, corte un pedazo más grande que el otro.
-Con unas tijeras, hacer cortes alrededor de la parte blanca de la naranja. Hay que tener cuidado de no cortar la base. Haga cortes también entre la cáscara y la pulpa.
-Quitar o, consumir obviamente, toda la pulpa, dejando casi blanca la cáscara por dentro, dejando que se forme una especie de mecha en el centro con la misma hebra.
-Deje la naranja secar por un par de días. Si usted puede ponerla en el sol, mejor. Estará listo cuando esté seco. Si está mojado, no funciona.
-Llenar con aceite la naranja. Si la mecha es demasiado gruesa, cortar un poco. Lo ideal es contar a unos 3 mm de diámetro. Más que eso, es difícil de encender y generar hollín.
-When lighting the wick it may take a few moments to light, the flame of the candle increases over time. The duration is approximately six hours and can be recharged during this time.

What is capillarity?

The “secret” of this experience is the phenomenon of capillarity, which makes liquids have a tendency to fill spaces. This happens in candles, for example, in which the liquid paraffin crosses the wick, overcoming the force of gravity.
Capillarity exists because there is an attraction between the molecules of liquids and solids. This phenomenon is very important for plants, as it helps in the circulation of liquids within them.

By Dr. Eric Jackson

Dr. Eric Jackson provides primary Internal Medicine care for men and women and treats patients with bone and mineral diseases, diabetes, heart conditions, and other chronic illnesses.He is a Washington University Bone Health Program physician and is a certified Bone Densitometrist. Dr. Avery is consistently recognized in "The Best Doctors in America" list.

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