Science of Candles -The Secret to How a Flame Keeps Burning / Mr. Denjiro's Happy Energy!
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- Опубликовано: 5 сен 2024
- DENJIRO: Have you ever heard of the book titled The Chemical History of a Candle?
GIRL: It’s a book that’s been gaining lots of attention lately.
DENJIRO: It’s a book written by English scientist Michael Faraday. It is a book about lectures he gave on the mystery of candles using various experiments. Candles are actually filled with lots of science facts. Let me go over a few of them today.
There are many kinds of candle wax. This is standard paraffin made from petroleum. This is beeswax, which comes from a honey bee hive. And this is Japan wax, a plant-based wax. As you can see, candles can be made from different kinds of wax.
Let me explain to you how a candle keeps burning without going out. When you light the wick of a candle, the heat causes the wax to melt, and it is pooled at the top. The liquefied wax is sucked up by the wick. It is then vaporized by heat. That is how it keeps burning.
Now, doesn’t this raise a question? Why does the melted wax go against gravity and travel upward? Faraday conducted an experiment using salt to answer this question. Let’s recreate that experiment.
There is a mass of salt placed on a Petri dish. At the bottom of this salt mass, I’m going to pour water that has been colored with blue ink. Here I go.
GIRL: The blue water is traveling upward!
DENJIRO: The entire mass of salt is now blue. This is known as “capillary action.” Liquid travels upward through the narrow space in the salt mass. Capillary action occurs with a candle wick as well.
There are small spaces within the fiber of the wick. Since the wax continues to climb up the wick, the flame can continue to burn. Faraday’s The Chemical History of a Candle uses lots of other experiments to explain the science behind candles. I’ll be showing you more as well.
I hope energy will bring you all happiness. Our magic word is "Happy Energy!”
ファラデーの訳本は難しくて読みにくすぎて、挿絵もないからほとんどの人が挫折したと思う
はぴエネは短くてもわかりやすい
ろうそくで面白く科学を説明されるでんじろ先生は素晴らしい‼️
これが破壊神でんじろう先生の始まり
毛細管現象とか、ちまっとした現象も面白い実験でやってくれるから面白すぎる
なんかパート1が見つかんなくて探した
でんじろう先生はマイケル・ファラデー好きなんやろな
2:06 ここ富士山
この番組、ロウソクと液体窒素準レギュラーやな
2:12 富士山
え!ロウ自体が燃料になるの?
知りませんでした(35歳)
2:12
富士山
死体を使った屍蝋は無いんかな?