Quantity, as a category, covers anything and everything related to numbers and measurements. From scientific equations to business metrics, if it involves counting or quantifying, you'll find it in Quantity. The most popular trends in this category reflect a fascination with understanding the world through data, from exploring the properties of electricity to analyzing market demand. It's not just about crunching numbers, though- Quantity also covers the ways in which we measure and observe the world around us. Whether it's defining the level of measurement in research or determining the wavelength of light, Quantity is all about getting a clearer picture of what's happening around us. So if you're a fan of counting, measuring, or just generally making sense of things, Quantity is the category for you.