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
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.
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.
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 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.