Explore the geometry of curves shaped by a constant pressure along a moving line of force.
This nonfiction work studies how a particle travels in a plane under a position-based force and a pressure relation P = kN. It presents a complete, exact description of the family of curves defined by this rule and shows how their shapes are tied to a single differential equation, written in both intrinsic and Cartesian forms. The book reveals how the motion depends on initial direction and speed, yielding a rich, quadruply infinite array of trajectories.
Two clear sections frame the value:
- It derives the governing equations and then examines the geometric properties that characterize all curves in the family.
- It connects special cases to familiar curves, like trajectories, brachistochrones, catenaries, and velocity curves, illustrating how they arise from particular parameter choices.
What you’ll experience
- A detailed look at how centers of osculating conics trace out new curves at each point.
- Visualizations of how curvature, tangents, and normal components interact under the pressure rule.
- Step-by-step reasoning that links intrinsic forms to Cartesian forms, plus implications for multiple systems.
What you’ll learn
- How to identify and describe infinite families of curves governed by a single law.
- Ways to interpret geometric properties such as centers of curvature, osculating conics, and higher-order contacts.
- The connections between general theory and the four “special cases of physical interest” that relate to common trajectory types.
Ideal for readers of advanced geometry and applied mathematics who want a rigorous, self-contained treatment of curve systems shaped by a proportional pressure constraint. If you enjoy exploring how abstract equations translate into tangible geometric behavior, this edition offers a thorough, methodical study.