Galileo's pendulum, astronaut centrifuge, Boyle's law, waves on a lake: these are classic physics experiments that would be interesting to perform with real equipment such as a smartphone, but that sometimes cannot be carried out physically. That is why we created a simulation tool within FizziQ Web — not to replace experimentation in the physical world, which remains the only truly relevant approach for analysing the world around us, but to make experimentation easier when it cannot be done...

The history of educational science software is, first and foremost, a history of teachers. Since the 1990s, teachers have been the ones building the tools that still equip thousands of classrooms today, coding in their own time, on evenings and weekends, for no pay. Over time, universities and foundations extended this offering with Scratch, PhET, Phyphox, and others: free software, often open source, adapted to real classroom needs because it was built by people who work there.

In February 2026, Elon Musk announced his intention to install data centers in orbit to run artificial intelligence. Very quickly, one argument dominated the comments: in space, cooling would be “free”, since it is very cold there. This widely shared claim is nevertheless false. It reveals a common confusion between temperature, heat, and heat transfer. Above all, it offers a valuable opportunity to develop critical thinking and to revisit simple but fundamental questions: what is...