Video:Cat coffee gets Halal green light

This 2 minute video by Aljazeera explains how the expensive Kopi Luwak coffee is produced in Indonesia. A kind of cat eats the coffee berries and once the droppings are cleaned and toasted they get a…

Experiment. How does the light travel.docx.pdf

End-of-unit activities - Waves. Light and sound

Perhaps you have seen one of the latest 3D films at the cinema with spectacular light and sound effects. But have you ever wondered what light is? Which mechanisms do we use to see objects and colours?…

End-of-unit evaluation - Waves. Light and sound

Perhaps you have seen one of the latest 3D films at the cinema with spectacular light and sound effects. But have you ever wondered what light is? Which mechanisms do we use to see objects and colours?…

Final Autoevaluation T12 03 - Waves. Light and sound

Answer these questions: What do we use to see how white light is made up of many colours? Can a lunar eclipse happen if the sun is between Earth and the Moon? What is closer to the Earth in a solar…

Learn. Some optical instruments - Waves. Light and sound

Some optical instruments Most optical instruments, like microscopes or telescopes, consist of lenses, mirrors and prisms. Lenses Lenses are disc-shaped, and one or both sides are curved. They are made…

Completa los huecos de la canción Guiding Light de Muse

Escucha la canción Guiding Light de Muse y completa los huecos. Tienes 4 modalidades: - Quiz: Cuestionario con preguntas - Beginner: desplegable con opciones - Intermediate: tienes que completar el 10%…

Final Autoevaluation T12 04 - Waves. Light and sound

Answer the following questions: Why does sound not propagate in space? Why does sound reach its highest speed in solid media? What is pitch? And timbre?

2012 Nobel Prize: How Do We See Light?

What was the 2012 Nobel Prize in physics given for? Capturing a single photon of light! Congrats to Serge Haroche and David Wineland http://translate.minutep...

Final Autoevaluation T12 03 - Waves. Light and sound

Answer these questions: What is sound? What are the characteristics of sound? At what speed does sound travel through the air?