Final answer:
Fettiplace Hackney's experiment is not a recognized historical event or scientific experiment, making it impossible to provide details about it. Students may be referring to the well-known Stern-Gerlach experiment in physics, which can be studied using resources like OpenStax for a detailed understanding.
Step-by-step explanation:
The student asked about Fettiplace Hackney's experiment, which does not appear to be a well-documented historical event or a recognized scientific experiment. Therefore, I am unable to provide a detailed explanation or analysis of said experiment as it may not exist or may be too obscure for available historical records or scientific literature.
A possible confusion could be with the Stern-Gerlach experiment, which is well-known in the field of physics. This experiment conducted by Otto Stern and Walther Gerlach in 1922 demonstrated that particles such as electrons have quantized spin values. This fundamental discovery in quantum mechanics showed that angular momentum (in this case, spin) is quantized and provided insights into the behavior of particles at the quantum level. Students interested in learning about the Stern-Gerlach experiment can refer to resources such as the OpenStax link provided, which explains the background and implications of the experiment in depth.