The principle of a magnifying glass is when using a magnifier, the object is placed in the focal length, and the illusion of the object is magnified by the convex lens. Everyone knows that magnifying glass can magnify the detail things especially for the elderly. Magnifier makes part or all of your screen bigger so you can see words and images better. With the different magnification lenses you can adjust the best vision and look more clearly. Magnifier also commonly used in works. For instance jeweler may use the magnifier to identify the jewels, the electronic engineer use the magnifier to fix the board and the field expert can use it to observe the plant and insect.
Not only magnify the things but also can focus the light, such as to concentrate the sun’s radiation to create a hot spot at the focus for fire starting. If you are camping in the wild and forgot to bring the ignition. Don’t worry! You can take out your magnifier and put it under the sun….wait for the amazing things will happen! It’s on fire and you can cook the cuisine.
It’s really a smart way to get the fire without ignition. Even if a little lightweight magnifier can make the biggest effect. There is a tip that you can reference.If you use a pencil to paint paper black, it will burn faster because the pencil is made of graphite, and graphite carbon, carbon will burn. However, there are two disadvantages: First, it may be a time-consuming work. Second is whether the magnifier could create a hot spot at the focus for fire starting has a big relationship to the weather. It’s best to loo the weather before creating a hot spot.
It’s really an easy, handy tip to getting a fire when you’re outside without any tools.
沒有留言:
張貼留言