2 papers
physics.class-ph2021
Rotorcraft RPM on Mars
Philip Blanco
The Ingenuity helicopter test flights on Mars in April 2021 marked the first time a powered aircraft has flown on another world. Students who have access to model helicopters and d…
math.DS2013
Regions of Stability for a Linear Differential Equation with Two Rationally Dependent Delays
Joseph M. Mahaffy, Timothy C. Busken
Stability analysis is performed for a linear differential equation with two delays. Geometric arguments show that when the two delays are rationally dependent, then the region of s…