• Publications
• Influence
Modeling ICBM Trajectories Around a Rotating Globe with Systems Tool Kit
In the April 2018 issue of TPT, Joseph Amato presented an analysis of intercontinental ballistic missile (ICBM) trajectories as applied to recent test launches from North Korea. Using properties of
High-speed escape from a circular orbit
• Physics, Geology
• 26 October 2020
You have a rocket in a high circular orbit around a massive central body (a planet, or the Sun) and wish to escape with the fastest possible speed at infinity for a given amount of fuel.
Rocket Propulsion, Classical Relativity, and the Oberth Effect
• Physics, Education
The Physics Teacher
• 19 September 2019
The role of work and mechanical energy in classical relativity has been a subject of renewed interest in this publication. Here we present a problem that illustrates the relationship between impulse
Satellite Splat: An Inelastic Collision with a Surface-launched Projectile
• Physics
• 23 April 2015
A projectile is launched vertically from the surface of an isolated planet. It collides with and sticks to a satellite of equal mass that is initially moving in a circular orbit around the planet.
A discrete, energetic approach to rocket propulsion
• Philip Blanco
• Physics, Engineering
Physics Education
• 16 August 2019
Most rockets convert the energy stored in their propellant mass into the mechanical energy required to expel it as exhaust. The 'rocket equation', which describes how a rocket's speed changes with
Satellite splat II: an inelastic collision with a surface-launched projectile and the maximum orbital radius for planetary impact
• Physics
• 16 May 2016
Starting with conservation of energy and angular momentum, we derive a convenient method for determining the periapsis distance of an orbiting object, by expressing its velocity components in terms
Lessons Learned from Teaching Astronomy with Virtual Reality
• Physics, Education
• 28 December 2019
The initial phase of an ongoing, multi-stage investigation of how to incorporate Virtual Reality (VR) technology in teaching introductory astronomy concepts can serve as a useful guide to expanding the role of VR in the astronomy classroom.