Welcome to Arctanon
This website has only just been started. Eventually it may comprise two main sections, one about aspects of the Solar system (gravitation, trajectories and orbits), and one about structures (illustrated chiefly by examples about bridges). There is a subtle connection between these two sections.
Most recent articles on astronomy:
Jupiter – Io – Speed of Light
This combination of words may remind some people of Ole Roemer, because he made a set of measurements that could be interpreted as an indication that the speed of light…
G – The gravitational constant
G is the multiplying factor that appears in Newton’s inverse square law of gravitation and in Einstein’s theory too. Our units of measurement have been chosen to be reasonably suitable…
Transits of Venus
What’s it all about? What lies behind these rare passages of the planet Venus in front of the Sun? And why do they matter? It is not easy to visualise…
Most recent articles on structures:
Oscillations and Vibrations
Oscillations and vibrations are movements of parts of a system that can occur without translating the system as a whole from its original position. Vibrations may be repetitive or non-repetitive,…
Basic Definitions
List of Topics The definitions given below are intended to be as simple as possible while retaining correctness. Galilean relativity and Newtonian physics as assumed, as nothing in these pages needs…
Funicular 3
Funicular 1 deals with flexible hanging objects in tension (ropes, cables or ties), while Funicular 2 deals with stiff objects in compression (struts). Since the two classes are closely related,…