How does fluorescence work?

A description of what fluorescence is and its connection to variety of topics and disciplines of everyday life and science.


The magic of the invisible coin – Playing and stimulating with Science

Where is the coin? Why has this happened? Where is the coin going to go when adding water to the glass? A possible explanation: the angle of the light refraction does not let you see the coin.


White light Composition

Decomposition of the white light and identification of the primary and secondary colours of the light. 


How do Solar Panel Work?

A short video that gives a detailed description of how solar panels work.


Electrotechnical Engineering - From the invisible to the real

This video, from the Portuguese Engineers Association, presents Electrotechnical Engineering and generally describes the profession of an Electrotechnical Engineer and his present contribution to social and economic development


Measuring the Speed of Light with Marshmallow Bunnies

The speed of light is measured in a microwave oven using the frequency of the microwave and the wavelength in a pyrex full of marshmallows by measuring the distance of the hot spots.


Lamp Temperature Control

The application allows the user to switch on/off the lamp and the fan and to check the evolution of the lamp and room temperatures in a graphic. It also allows to perform a basic on/off control to stabilize the temperature at a reference point set by the user in the remote experiment application.


Giant soap bubbles

Making soap bubbles makes any outdoor activity much funnier – specially if there is a smooth breeze to take them to the sky. The size of both the soap bubbles or the huge tubes depends on the used materials as well on the students’ expertise. The soap bubbles have no colour, but their amazing structure and the light properties make visible a complete rainbow. The outer surface that keeps the air inside is a thin water sheet isolated between two thin layers of soap molecules. It’s the way the light interacts with these layers that creates the colours we can see.


Transient - 4K, UHD, 1000FPS

Adjective. not lasting, enduring, or permanent; lasting only a short time; existing briefly. Philosophy. person or thing that is transient, especially a temporary guest, boarder, laborer, or the like. Electricity. a sudden pulse of voltage or current


The teen inventors of Greece: The children that make a Green Future

The teen inventors of Greece: The children that make a Green Future

The video presents two projects that developed by Greek schools and which combine technology with environmental awareness. 


Why does the sky seem blue? Analysing the theory of “Rayleigh scattering"

The physicist, Stavros Louverdis, analyses in an interactive way the optical phenomenon of sky’s “blue” colour. Based on the theory of “Rayleigh scattering”, he also explains why the sunset looks red. ThevideoisavailableinGreek.