En física, la normal es una recta perpendicular a una superficie. <br/<br/>>

Twig - Física

Término mediante el que se denomina a aquellas sustancias que se transforman fácilmente en vapor a temperatura y presión normales. <br/<br/>>

Twig - Química

La luz puede ser transportada a largas distancias a través de cables de fibra óptica sin prácticamente pérdida de información. ¿Cómo es esto posible?
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What caused Voyager I to send this weird message?

Betelgeuse, Betelgeuse, Betelgeuse. Why were you dimming? Scientists may have finally come up with the answer thanks to data from Hubble.

Mood rings are rings that have a stone or band that changes color in response to variations in temperature. They are also composed of liquid crystals, which undergo a change in color in response to changes in the temperature of the body...

When we experience anxiety, our sympathetic nervous system is activated and initiates the fight-or-flight response. This response is a host of physiological changes that prepare us to either fight or flee. One of the effects of the...

Muscle trembling during weightlifting or intense exercise is a result of muscle fatigue. Muscle fatigue, in simple words, refers to the state when our muscles get tired. To understand this phenomenon, it is better to first understand...

Short answer: Yes, drinking a lot of water will certainly change the pH of the stomach, but this amount is trivial. However, since your stomach is very acidic, to begin with, drinking water will not dilute it significantly. Also, there...

En este vídeo vamos a hablar sobre las fuerzas de contacto que podemos encontrar en nuestro día a día, así como de las fuerzas fundamentales y de los sistemas ligados y algunas consideraciones que debemos recordar a la hora de estudiarlos.

This video discusses the definition and causes of heat waves, as well as the increase in their frequency due to global warming. It provides tips on how to stay cool during a heat wave, emphasizing the importance of staying hydrated and...

In physics, the normal is a line perpendicular to a surface.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

The pressure that blood exerts against the walls of blood vessels.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

A cell that has half the number of chromosomes as normal body cells, containing a single set of unpaired chromosomes.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...

A positively charged particle found in the nucleus of all atoms.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

A substance which turns easily to a vapour at normal temperatures and pressures.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Short-lived dark spots on the surface of the Sun.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

Why scientists dispelled rumours of extreme waves at sea, based on flawed mathematics. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract...

When light hits something, a number of things can happen: it can be reflected, refracted, diffracted or absorbed. But what does this mean? Physics - Waves - Learning Points. Manipulation of light is vital to our survival. Light waves...

In 1997, Scottish scientists announced the first successful cloning of an adult animal - Dolly the Sheep. But her birth was mired in controversy. Biology - Cells And DNA - Learning Points. Dolly the sheep was the world's first clone....

Floods are one of the most devastating natural hazards you’re ever likely to encounter.
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Learning Points
Flooding is more likely to


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Discover how Robert Smalls led a daring escape from Charleston Harbor on the Confederate steamship, the Planter. Learn about the high-stakes plan, the critical role of his knowledge of security signals, and the bravery it took to...

By the end of this learning object, the student will be able to: Identify the concept and laws of light reflection.13536

By the end of this learning object, the student will be able to: Summarize the main points related to the reflection and refraction of light.86740