How Lighters Make Fire / Mr. Denjiro's Happy Energy! скачать в хорошем качестве

How Lighters Make Fire / Mr. Denjiro's Happy Energy!

DENJIRO: Today's topic is these lighters here. How do they make fire? They do so by burning metal. I have here powdered titanium alloy. Let me show you that metals do actually burn. There were sparks like fireworks. So powdered metal does indeed burn. In fact, lighters make fire because powdered metal causes the ignition. If you look closely, there is a metal part inside. A substance like ferrocerium, an alloy of iron and cerium, is used. This part is scraped with a file to create powder, and the friction caused from that starts a fire. The powdered ferrocerium that catches fire acts as an ember and burns the gas or fuel. That being said, not all metals burn. Now, let's try another experiment. Here's a grinder. Let's grind this piece of iron with it. The fine powders are creating a spark due to the heat from friction. When we take a look at the powdered iron, it almost has a circular shape. This is proof that this iron caught fire. Now, can we start a flame in this oil using iron? As you can see, it didn't cause the oil to catch fire. Let's try this one more time using ferrocerium, which is used in lighters. Now, the oil caught fire. When we compare the sparks between the two experiments, the sparks caused by the ferrocerium are brighter. This means the sparks were hotter. The sparks caused by ferrocerium are hot enough to set the oil on fire, and therefore used in lighters. Ferrocerium is also used in fire starters, which are often used by campers. I hope energy will bring you all happiness. Our magic word is "Happy Energy!"