Turbojet
Originally I was drawn to
a turbojet because of the inlet cone of a turbo jet. There is often a
spiral drawing on that cone. First I thought it was to frighten birds
so they wouldn't fly into the turbojet. Later I discovered its
function is to see if the engine runs stable. Anyway I decided to do
something with such an impressive object as a turbojet. After
research I found out that they only have 4 functions: intake of air,
compress, combust and exhaust of air. And instead of an impressive
machine I decided – after several steps and prototypes – to make
a version in 4 parts, like the 4 functions, and to make it accessible
by using materials that you want to stroke or by organic shapes.
Turbojet - Intake
Turbojet - Compression
The inside of the
accordion was adapted so it has a convex shape while it is still
pulled by strings. This convex shape is unnatural because it should
be a concave shape, given the laws of gravity. The iron of the
construction bended upwards and inwards because of the force of the
pulling of the strings.
Turbojet - Combustion
Black and transparent
water are slowly pumped through the same set of hoses without mixing
with each other. The black water pushes the transparent water further
and the transparent water pushes the black water further. 
Turbojet - Exhaust