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"Urtext" (German for "original text") editions are generally the closest to the composer's intentions. Since centuries have passed, sometimes it is difficult to tell whether an Urtext ...

Star formation begins when dust and gas starts to gather to form a cloud called nebula. Gravity causes the cloud to spiral and form a Protostar, where gravity accelerates...

Firstly I would try to learn about the students abilities and maybe do an easier linear equations (without brackets) to ensure they have a basic idea how to solve these types of equations. For this questi...

Imagine that there are 10 apples to be sold at $1 each and that there are 10 people wanting to buy (demanding) an apple each. Now imagine there is an apple health-craze in this country and so now there ar...

This is a common misconception when learning to distinguish ser and estar. There are many rules and exceptions regarding this. Here's an example: "Mi abuela es mayor" vs "Mi abuela está may...