Research applications of logarithmic functions as mathematical models. Some idea

Research applications of logarithmic functions as mathematical models. Some idea

Research applications of logarithmic functions as mathematical models. Some ideas include but are not limited to: pH (acidity of solutions), intensity of sound (decibels), brightness of stars, human memory, progress over time in a sport, and profit over time.
Choose an area of interest from above or provide one of your own, and explain how logarithmic functions are used.
Provide at least one example.