Do you know which ball will finish first? Or can you determine the inside of a sphere without tools? Or explain what will happen to the inner diameter of a washer when heating it? The explanations to these riddles seem complex but are straightforward when using your creativity and lateral thinking. In this book, 'Technical riddles', a collection of 40 technical riddles are explained in detail with many providing hyperlinks to resources for even more information related to the subject. Technic...

Hoe maken we een einde aan de zwarte pieten-discussie ? Het gedoe dat elk jaar weer op duikt en families en gezinnen en vrienden kringen en de hele maatschappij verdeelt ?

Kimberley Korenaar schreef een uit het hart gegrepen boekje dat het definitieve boek hier over wil zijn. Met een helder overzicht over de geschiedenis van hoe zwarte piet is ontstaan voor en tegen standers en hoe nu verder in Nederland ? Afgewisseld met prachtige zelf geschreven gedichten is dit een onpartijdige zoek tocht ...

This book is about reaching all the way back to your absolute core and releasing the person you were always meant to be. Learning to structure and articulate your hearts desire and souls intent of living yourself as the truly loving man that you are.

The ability to make emotions, love and communication work for you and give you the power to attract, keep and let flourish any woman as a friend, date, partner and/or wife. Giving a spiritual touch to what it actually means to be and become a â€...

Mathematics education is a mess. In primary education the development in arithmetic, geometry and other math topics is greatly hindered.

Mathematicians are trained for abstraction while education is an empirical issue. When mathematicians meet in class with real live pupils then they solve their cognitive dissonance by holding on to tradition. But tradition and its study materials have not been designed for empirical didactics. Pupils suffer the consequences.

The West reads from left to right...