Density is a very important concept that explains many things that happen in everyone’s everyday life. For instance, the reason why ice floats in water is solely because of the fact that water is denser. However, this is not only applicable to ice and water in a glass. It also applies to when rivers and lakes get frozen over. The fact that ice has a lesser density then water, is what keeps many of the fish living below the ice layer alive, and not crushed by ice. Also, swimming would be much harder if humans were denser then they already are.
Density is rather easy to find if one has the right tools. The equation for density is mass divided by volume. This means that if someone has a scale, and either a graduated cylinder or a measuring tape, they can find the density of nearly any item they want. You simply have to determine the weight of the desired item. Then, if it is easily measurable, you can use a ruler or measuring tape. However, if it is not easy to measure, you can simply put it in a graduated cylinder that has some water in it, and by observing how much the water level rises, you will have found the volume. This just goes to show how simplistic yet complex the idea of density is. It is a very important quantity that many scientists need for their incredibly intricate experiments and publications. However, some one who has no previous relation to science can determine the density of an incredible number of substances.
The supposed tale of how density was discovered is probably a myth, but it is still a good way of explaining the process used to find density. The tale goes that was a king believed that the goldsmith had diluted the pureness of the gold used in his wreath by adding in a cheap alloy. He gave Archimedes the task of determining whether or not the wreath was in fact one hundred percent gold, or if it was diluted. The only guideline was that the king did not want this amazing wreath injured because it was incredible work of craftsmanship. Then the tale says that Archimedes got into a full bath, and he noticed the water fell over the sides. This is when it is thought that Archimedes ran through the streets yelling, “Eureka.” Archimedes then used water displacement to measure the volume of the wreath. He then weighed it and he was able to compare the density of the wreath to that of solid gold.
The applications of density to everyday life and the natural world are very widespread. For instance, when you look at things like shipping freighters and they do not look like they should float at all because of the fact that they are made of steel, density and displacement of weight are what make these massive ships not sink like a brick. The metal is spaced out very far apart, and this leaves a lot of empty space. This empty space’s density decreases the boats over all density until it is not as dense as water. If something is not as dense as water, then it will float. Also, people involved with the selling and purchasing of jewelry use density constantly. They use it in order to determine the ratio of the pure sought after substance to another component like an alloy that is added in.
Density is a very important topic that ties into many human lives and interaction. That is what makes it such an interesting topic for research and discussion. However, the discovery of density is not credited one scientist or group of scientists, aside from the debatable tale of Archimedes. That is rather perplexing because it is such an incredibly crucial idea to science, that one would think its origins would be praised. However, the truly important fact is that density was introduced to the world, and because of this introduction, we as humans understand multitudes more.