Toroidal Propeller
(wikipedia.org)
A toroidal propeller is a type of propeller that is ring-shaped with each blade forming a closed loop.
A toroidal propeller is a type of propeller that is ring-shaped with each blade forming a closed loop.
The Problem with Sci-Fi Body Armor
(acoup.blog)
This week we’re covering the winning topic from the latest ACOUP Senate poll, which is a look at some of the odd designs and mechanics for futuristic science fiction body armor, particularly rigid ‘hardsuits.’ Naturally, this post isn’t going to cover every variety of armor that appears in science fiction, so I want to be clear that I am generally limiting my scope here to rigid non-powered armor.
This week we’re covering the winning topic from the latest ACOUP Senate poll, which is a look at some of the odd designs and mechanics for futuristic science fiction body armor, particularly rigid ‘hardsuits.’ Naturally, this post isn’t going to cover every variety of armor that appears in science fiction, so I want to be clear that I am generally limiting my scope here to rigid non-powered armor.
Energy is frame-dependent, infrastructure of energy is frame-independent (2020)
(blogspot.com)
The concept of energy and the elaborate mathematical infrastructure that surrounds it are so fundamental to mechanics that they are generally introduced less than half-way through the first semester of the introductory course in a college classroom (true whether you are doing a force-first or momentum-first introduction).
The concept of energy and the elaborate mathematical infrastructure that surrounds it are so fundamental to mechanics that they are generally introduced less than half-way through the first semester of the introductory course in a college classroom (true whether you are doing a force-first or momentum-first introduction).
A 15-minute intro to involute gears
(lcamtuf.substack.com)
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their shape?
Involute gears are everywhere: toys, kitchen appliances, cars. But what's so special about their shape?
Understanding Ship Rudders: Types and Functions
(medium.com)
Ship rudders serve as a critical component in maritime navigation, playing a fundamental role in steering vessels by manipulating the flow of water past the hull.
Ship rudders serve as a critical component in maritime navigation, playing a fundamental role in steering vessels by manipulating the flow of water past the hull.
The Physics of Colliding Balls
(vanhunteradams.com)
Consider the case of one ball of mass $m$ approaching and striking a stationary ball of mass $M$. As we'll see, solving this problem sets us up to solve arbitrary collisions.
Consider the case of one ball of mass $m$ approaching and striking a stationary ball of mass $M$. As we'll see, solving this problem sets us up to solve arbitrary collisions.