My responsibilities towards my wife
In this verse, the Quran demonstrates the responsibilities of towards women, from which I glean the lesson of how to treat my wife.
lessons
Do not use Expanded Polystyrene (EPS)
Learned this one the hard way — never use EPS foam for building a model plane body.
Motor Efficiency
In this post, we discuss what things you need to consider when picking a motor for your efficient aircraft.