Top Uses of a Magnifying Glass

The magnifying glass is known as one of the oldest instruments used to improve sight. Modern magnifying glasses are double-convex lenses and they make the objects appear larger. The lens is convex on both sides, i.e. thicker in the middle. When viewing objects the light rays are bent towards the centre of the lens, making the object look larger than it is to the eye. Every magnifying glass has a focal length, which are the distances from the optical centre of the lens to the point where the light rays converge. The focal length of any lens is determined by the radius of the curve on the face of the lens. The mathematics that describes magnification is relatively straightforward and can be found in comprehensive physics textbooks.

Top Uses of Magnifying Glasses

Where would we be if we did not have magnifying glasses? They come in handy for a variety of things. Let's take crafts, for instance. Whether it is knitting, embroidery or some other handiwork, magnification can be the difference between a perfectly finished project, and something only a mother could love. If we could not see fine details, imagine all the handmade sweaters with dropped stitches walking around on the backs of people oblivious to wearing clothing that looks like Swiss cheese. Or all the stitched samplers on the walls of homes everywhere that are less than complete. More often than not, angled hems or crooked letters would take the place of symmetry and order.

If you are putting together a model without the use of a magnifying glass, your chances of having hardware left over increase exponentially. Tiny screw holes can be overlooked, the installation of a minuscule washer may be missed or a microscopic dowel might be forgotten. As a result, it's more likely that your miniature areophane, slot car or birdhouse might not perform exactly how it should. Even if it's just for show, it should be secure and complete and not fall apart on the shelf.

If you find it difficult to use a hand-held magnifying glass online, you can attach one to your eyeglasses or wear one around your neck. Voila! Hands-free vision. This is handy because when you're working on a task, you need both hands. You need one hand to hammer and one to hold the nail. One hand to hold the hoop and the other is to hold the needle to make the stitches. And have you ever seen someone try to knit with one needle? I think they call that crocheting and you still need another hand to guide the yarn. So without an apparatus to magnify the projects, you are working on, a lot of fine details may be missed. Fine details may lead to larger details, and the next thing you know, you're opening a gift from your mother and trying to keep a straight face when you discover the sleeves on your new handmade sweater are knitted shut. It looks like you might be getting mother a magnifying glass online or lamp next year.