Månadsarkiv: juni 2012

Euclidean Definitions

A line has length between two points but no width. A point has no components i.e. it can’t be divided into parts. A straight line traces the closest distance between two points. A curved line has no straight segments. A surface … Läs mer

Publicerat i Geometri, Uncategorized | 4 kommentarer

More Elements

There are two types of proof: Direct proofs: Where it is proved (deduced or induced) from the basic axioms, definiyions or earlier proved theorems that the statement is correct. Indirect proofs: The principle for this type of proofs is that … Läs mer

Publicerat i Uncategorized | Lämna en kommentar

Venus transit

Last Wednesday the planet Venus passed between the Sun and the earth. A rare astronomical event that will not happen again until 2117.

Publicerat i Astronomy | Lämna en kommentar