## Astrodidactics

A Place to Learn about Physics and Astronomy My name is Peter Krumbein, I have a Licenciatura in Physics from the National Pedagogical University, Bogota/Colombia, and studied Physics at the University of Hamburg, Germany. I have a Master in Physics Education, from Andrews University, Michigan, and Master in Astronomy and Astrophysics from Valencia International University,Continue reading “Astrodidactics”

## Trivia 3

As we commonly know, rocks are classified as igneous rocks, metamorphic rocks, and sedimentary rocks. Igneous rocks are rocks that have been melted, and are formed when a hot molten rock cools, from magma. These rocks melt in the upper mantle of the Earth and below the crust. The igneous rocks are rich in mineralsContinue reading “Trivia 3”

## Trivia 2

Have you ever thought about the reason why, when we have in the northern countries, like in the USA and Canada, and the countries in Europe, cold winter season, and in South America, like in Argentina and Chile during the same time a warm summer? First, we need to remove the idea that it isContinue reading “Trivia 2”

## Trivia 1

The states of matter depend on how the average distance between their molecules is compared with the size of the molecules themselves. In a gas, the molecules are separated in average by distances much larger than the molecules sizes. There are, as we know, substances in solid state at normal temperature and pressure. Their moleculesContinue reading “Trivia 1”

## Lesson for Today- Lesson 02

How do Planets, or other objects move around a star? The observations of the German astronomer, Johannes Kepler (27 December 1571 – 15 November 1630), deduced the three laws that are being used today to answer that question. I will describe the three laws in three different lessons, starting today with the first one below.Continue reading “Lesson for Today- Lesson 02”

## Lesson for Today – Lesson 01

The Astronomical Unit – Definition The distance from a particle (or a planet) to the Sun, is measured in terms of the semimajor axis of the ellipse traced by that body around the Sun. According to Kepler’ law, the square of the period (time that the body takes to go once around de Sun inContinue reading “Lesson for Today – Lesson 01”