that discusses how one of the following is applied or observed in the real world:

that discusses how one of the following is applied or observed in the real world: pertaining in aeronautics

Energy and power
Potential or kinetic energy
Gravity
Thermal expansion

Provide a brief summary of your research.
Explain how the research illustrates the concept(s) you are discussing.
Discuss any ethical or practical considerations that might arise from this application of the concept. These might include (but are not limited to) environmental impact, safety concerns, or issues of effectiveness.
Your summary must be in your own words.
Be sure to cite your source(s) and include the URL.