We invite you to watch the film of the launch of our stratospheric balloon. The launch took place in Rockenhausen on May 7, 2025 at 3:00 p.m. The flight lasted 2 hours 46 minutes, rising to an altitude of 36 km. Our search team found it on a German farmer's farm 25 km from the launch site. The balloon landed safely on a parachute. All the measuring equipment prepared by us survived extreme conditions in the stratosphere. On board the balloon were test tubes with liquids and gas and slime mold, a camera and 3 sets of measuring systems with Python software, which recorded parameters in the stratosphere, including pressure, temperature, humidity, UV radiation, volatile organic compounds, CO2 and the voltage generated by the solar panel. Extreme conditions prevailed in the stratosphere. Our raspberry Pi Pico2 on board recorded the lowest pressure of 2.1 hPa, minimum temperature of -50 degrees Celsius and minimum humidity of 6%, high levels of UV radiation and high levels of CO2. You can find the processed results on this page.

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On May 5-9, 2025, 19 students from partner schools implementing the Erasmus+ Ballon Measurement an Environmental Consciousness EU-Ballon project met in Rockenhausen, Germany, in the Palatinate region, to carry out a practical flight in a stratospheric balloon, which took prepared elements on board.

The German team of students, led by teacher Lutz Rothe, took care of the technical part of organizing the balloon flight (preparing the elements of the container, parachute, pumping gas, loading the measuring systems and experiment elements, preparing the recording with a 4K camera and connecting the system enabling tracking the balloon after returning to mobile phone range.

And so the French team prepared an experiment, the aim of which was to examine the behavior of various liquids and gases contained in test tubes in extreme stratospheric conditions (very low temperature, very low pressure), another French experiment was to examine the behavior of slime mold in these extreme conditions. Slime mold is often an indicator of environmental cleanliness. The French idea of ​​measuring solar energy in the stratosphere using a solar panel was implemented by the Polish partner based on the method presented at the training in Kozienice in November 2024. Measuring systems containing a Raspberry Pi Pico2 microcontroller and appropriate sensors were prepared in Kozienice for the container that the balloon was to take with it. The values ​​measured by the sensors were saved in the microcontroller's memory in the form of a simple database file that can be easily analyzed, for example using a spreadsheet or Python.

The Polish team prepared software to measure UV radiation, CO2, volatile organic compounds, acceleration, temperature, pressure, humidity and the voltage recorded on the solar panel.

The flight took place on May 7 at around 3 p.m., lasted 2 hours and 46 minutes, and was recorded with a 4K camera placed in the container.
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TV relation from local TV "Kronika Kozienicka".
Material about our project and the meeting in Kozienice (25-29.11.2024)

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As part of the project implementation, from November 25 to November 29, 2024, a project meeting will be held at the school in Kozienice, in which 21 students and 8 teachers from partner schools will participate.

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