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A Guide to Understanding Uses of the Density Formula

“Density” is a word that every person has probably heard at some point or another. If, for example, you’ve ever taken a science class, the odds are good that density came up at some point in time, particularly if the course was chemistry-centric or physics-centric. You might not, however, fully understand what density is or what the formula of density is. Luckily, there are guides like this you can turn to for help.

To start, the density formula is the mass of an object divided by it’s volume. By now you might be thinking that there’s no way you’ll ever need to use density in your day-to-day life, but this isn’t necessarily true. There are, as you’ll discover in the following paragraphs of this guide, a variety of pragmatic purposes for the formula of density. Though you might not use each one of these applications in your own life, you will certainly have to use some of them frequently and others occasionally.

Understanding Archimedes’ Principle
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An incredibly well-known use of the density formula has ties to buoyancy. As the tale goes, Archimedes of Syracuse was commissioned to determine if King Hiero II’s brand new crown contained the proper amount of gold; the king was under the impression that his goldsmith might have stolen some of the metal for his own gain. Ultimately, Archimedes realized that the volume of the crown could be determined by the mass of the water it displaced in a tub. The volume, in turn, was used to determine the density, as per the density formula.
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The Seasonal Stratification of Lakes Can Be Studied

Water’s density maximum tops out at 4 degrees Celsius. In all but the very shallowest lakes, the water has stratified properties; this refers to the fact that the most dense water goes to the floor and rarely, if ever, mixes with the less-dense water that can be found at the surface. When the chill of fall and winter come each year, cooling the temperature of lake waters, the dense water that had been at the bottom over the spring and summer is pushed towards the top, restoring nutrients and making sure the lake is prepped for the upcoming year.

Lava Lamps Were Engineered Around Density

Lava lamps, which are also called fluid motion lamps, skyrocketed to popularity in the 1970s and remain popular among some consumers even now. The formula of density is a key part of the functionality of these lamps. The oil that is used to fill the lamps is slightly denser than the water, causing blobs of water to move up and down when the oil is heated via the use of a lightbulb.