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Une minute de science, s'il vous plaît! / Óperation levier
Xtec Organización
- 1667 visitas
Avec des muscles, on impressionne ses amis... ou on règle des différends. Quand la force brute ne suffit pas, on se sert de sa tête. Et d'un outil... (Vidéo français / vídeo francès)
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The proclamation of Tucumán
EduBook Organización
- 1518 visitas
We, the representatives of the United Provinces of South America, assembled in General Congress, invoking the Eternal Force that presides over the universe, in the name of and by the authority of the…
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Church in the Middle Ages: from dedication to dissent
V&V Books Vicens Vives Organización
- 1442 visitas
The Church was a powerful force in medieval life, dominating everyday life for the majority of people. Dr Alixe Bovey examines how the Church was organised, why people went on pilgrimages, and what…
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ESA - Space for Kids - Technology - The first rockets
V&V Books Vicens Vives Organización
- 1 lo usan
- 1122 visitas
Everything on Earth ? including us ? is held down by the force of gravity. Without gravity, we would all float off into space. It is said that Isaac Newton discovered gravity when an apple fell on his head.
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Climate refugees: the communities displaced by global warming
V&V Books Vicens Vives Organización
- 1 lo usan
- 974 visitas
With climate change set to force millions of people from their homes due to more frequent extreme weather events and rising sea levels, one academic has been travelling the world to see how the people…
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Forces and Motion: Basics
Cristina Seco Organización
- 804 visitas
Explore the forces at work when pulling against a cart,and pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the…
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Forces and Motion: Basics
V&V Books Vicens Vives Organización
- 879 visitas
Explore the forces at work when pulling against a cart,and pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the…
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Check. Work and energy
EduBook Organización
- 5596 visitas
Remember what you have studied in this section and answer the questions: What does the abbreviation SI represent? Why is SI important? How much work does 1 joule represent? If you know the work done and…
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Analyse. Study the law of the lever
EduBook Organización
- 2980 visitas
A lever is a simple machine consisting of a bar which pivots on a turning point or fulcrum. Using a lever and applying a force (F) to the longest arm (the part of the bar from the fulcrum to where the…