JHU Innovation Summer Course
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Legacy articles aren't reviewed and may be incorrectly formatted.
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How Algorithms Decide What You See: The Maths Behind Recommendations
Introduction Imagine this: You open up YouTube and you start watching a video. Within seconds, your algorithm begins adjusting what it will show you next. Watch a couple of minutes of that YouTube video and you're bored, so you open TikTok and scroll for 10 minutes. After every
Red Light, Green Light: Game Theory in Traffic Networks
Traffic systems are game-theoretic systems systems. Multiple players - primarily the drivers and control systems - make strategic decisions in which individual outcomes depend on others’ choices. Game theory provides a mathematical framework for analysing these structures and relationships, through the concepts of players, strategies and payoffs. This framework applies
Aerodynamics By Hand: Designing The Airfoil Before CFD
The advent of Computational Fluid Dynamics (CFD) revolutionised the way we design and optimise aircraft and analyse fluid flows. It was proposed by Lewis Fry Richardson, who wanted a way to predict weather, when he published Weather Prediction by Numerical Processing in 1922. This involved having to solve partial differential
Gyroscopic Principles and Its Practical Technologies
Introduction: Brennan’s Gyroscopic Monorail In 1910, at the Japan-British exhibition, Irish Australian mechanical engineer Louis Brennan unveiled a monorail that could balance dangerously on a singular rail with inline wheels. This 22-ton machine, even when stationary, did not tip over, and could carry up to 50 people around a