Przemiany U19

The generation that is now at school age will have to face the problems generated by the present in a few years. The future belongs to them. Instead of waiting passively, young people are already trying to shape it. They use their ingenuity, new technologies and fabrication tools to solve problems of food production, storage and waste.

During the festival meeting, they’ll present projects inspired by food technologies, bioinnovations and robotics.

In the programme:

The 3D printer for food

Every year, only in Poland almost 10 tons of “food mass” is thrown away, including uneaten cookies, chocolate leftovers, and other sweetmeats. Students created special feeders and systems allowing 3D print using these raw materials. Instead of being put in the trash, snack leftovers can be reused now. The 3D printer can also give them much more attractive form than they had before – any complex shape, unattainable when using conventional techniques.

Houses for insects

With the growth of our civilisation, we observe decreasing number of insects supporting people in our environment. Another proposal from young designers includes hotels for helpful insects, which live alone – such as mason bees, ladybugs, bumblebees, wild bees. It turns out that spring mining bees are often more productive than bred honey bees, and larvae of ladybugs and insects called green lacewings feed on pests living in our orchards and gardens – aphids. The houses are made of small pieces of wood, sticks, bamboo. Hanged in gardens, near crops and fruit trees, they become a shelter and hatching place for young specimens. They contribute not only to the growth of insect population, but also improve the process of flower pollination and fruit growth.

Educational greenhouse

Potatoes, carrots, tomatoes, cress, and chives grow in students’ greenhouse. Owing to special application, the plants are photographed every day, which allows following their growth later in time-lapse. It is also possible to read about them, and analyse humidity and temperature inside. However, the most important element is its irrigation system controlled by Raspberry Pi. Correct answer to the question regarding water saving and not wasting food is required to activate the system. Each good answer starts the pump for specified number of seconds. The project can be developed further, depending on invention of young authors.

Waste bin

Designer shape, solar power system, lots of sensors and lights. This is a description of bin for organic wastes, which everybody wants to use! The container reacts with fanfares when waste is thrown into it, and after filling informs that it is necessary to empty it. It helps younger children to develop correct habits, and makes older sensitive to the issue of segregation.


Compact unit designed to treat biological sewage generated in the kitchen? It is possible. Students’ set consists of several successive treatment tanks using aerobic microbes. After flowing through the tanks and sedimentation chamber, purified water is used for hydroponic farming of herbs. The crop is additionally exposed to LED lighting with adequate wavelength.

Fridge behind the window

A life without a fridge? In winter months this concept does not have to be a nightmare. Young designers decided to use low temperatures to save energy and learn to buy food more deliberately. Window fridge fits on outer sill, and its door is replaced by one of window sashes. In case of high insolation, the structure can be shaded. The whole system is equipped with temperature sensors operated by Arduino, and fans.


When and where?

5 October at 11:00
Copernicus Science Centre, auditorium

Free admission, registration is not required