Telescope: optics and resolution range. Amateur astronomy is an enjoyable and educational passtime. If at any time you are able and want to get an astronomical telescope you should first find out about its possibilities.

The following visual which simulates a telescope can help you answer which telescope is better.

Telescope elements and the invention of the telescope

Graphs of the movements make data tables unnecessary.

Las representaciones gráficas de los movimientos pueden hacer innecesarias las tablas de valores

Escena interactiva para estudiar el concepto de superficie equipotencial en un punto. El punto en cuestión se puede mover y está sometido al campo gravitatorio de un planeta, cuya masa se puede modificar. La escena permite dibujar las curvas equipotenciales y las líneas de fuerza asociadas a dicho punto.

Concept of surface tension

Concept of surface tension

When a wave is limited in its propagation at one or at both ends, a wave can appear with points which are not displaced with time (nodes).

Explanation of since an image is formed using convex lenses.

Explanation of since an image is formed using convex lenses.

The terms speed and velocity are sometimes confused although they have different meanings.

Concept of speed and mass of the electrons

The educational resource shows an interactive animation about the specific heat concept: when a body is heated, the temperature it finally reaches depends on the nature of the body. This property is known as specific heat.

Soddy and Fajans stated the laws of transmutation which govern the process by which one element transmutes into another. Soddy's 2nd law: When a radioactive atom emits a beta particle, its atomic number increases by one unit.

Soddy and Fajans stated the laws of transmutation which govern the process by which one element transmutes into another.

Simulación de un telescopio puede ayudar a resolver si un telescopio largo es mejor que uno corto, o si uno ancho es mejor que uno estrecho

When an electric current of variable intensity circulates through a coil an induced current originates inside it.

Concepto de sistema de referencia

The description of a simple harmonic motion can be carried out more easily by using an auxiliary uniform circular movement.