The orientation of a plane in space was considered [Transparancies 1 and 2]. The right-hand rule was defined.
The concept of a vector product (also known as a "cross product") was defined [Transparancy 2]. Justification for this definition was given in terms of torque and magnetic force.
By exploring the cross-product of the unit vectors of a right-handed coordinate system, we came up with a rule for the components of a general cross-product [Transparancy 3]. (We had to assume the distributivity of the cross product here. It will be proven next lecture.) The components of a cross product can be expressed in terms of the determinant of a matrix. This is a useful device for calculating cross-products.
A geometrical interpretation of the cross product in terms of the area of a parallelogram was given [Transparancy 4].
Here are the scanned-in transparancies, in full-colour JPEG format:
