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Archive for the ‘2 ESO Bil’ Category

Image from hyperphysics.phy-astr.gsu.edu

At supersonic speeds (those greater than the local sound speed), there is no sound heard as an object approaches an observer because the object is traveling faster than the sound it produces. Only after the object has passed will the observer be able to hear the sound waves emitted from the object. These time periods are often referred to as the zone of silence and the zone of action. When the object has passed over the observer, the pressure disturbance waves (Mach waves) radiate toward the ground, causing a sonic boom. The region in which someone can hear the boom is called the boom carpet. The intensity of the boom is greatest directly below the flight path and decreases on either side of it.

Text from:

http://www.scientificamerican.com/article/what-happens-when-an-airc/

 

Image from aviation.stackexchange.com

And one video: Breaking the sound barrier [Jets Compilation]

 

 

 

 

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This is a 15 minutes short  video of amazing images flying over, hiking and discovering the magical Aragonese mountain Monte Perdido. This  scientific geology documentary made for the Pyrenees National Park (France) and the Comarca de Sobrarbe (Spain) in collaboration with UNESCO shows all the beutyness of the highest limestone peak in Europe in the heart of the spectacular central massif of the Pyrenees, at Ordesa y Monte Perdido National Park.

Video also in French at this location: vimeo.com/112795337

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Esta semana realizamos la actividad medioambiental de visita al río Huerva en su tramo Parque Bruil-Desembocadura. Actividad realizada en colaboración con el Gabinete de Educación Ambiental del Ayto de Zgz, formando parte de las actividades ambientales ofertadas.
Con esta pequeña excursión el alumnado conoce un espacio natural cercano y aprende a reconocer su importancia y a valorarlo.
El Departamento de Biología y Geología del IES Pedro de Luna tiene una especial implicación en dar a conocer entornos naturales cercanos para ser vividos por el alumnado y entender así la importancia de su valor, disfrute y protección. Además, este departamento está involucrado con otros colectivos sociales y ecologistas en esta labor de divulgación y protección dentro de la  coordinadora ‘Vive el Parque Bruil’ . Esta misma semana se ha vuelto a  reclamar una propuesta que permita la integración del rio Huerva en el Parque Bruily apovechar la ejecución del plan LIFE para este fin.

El día 5 Noviembre salieron los cursos de 2º C y 2º D con los profesores Ana Sanz y Rafael latre (Tecnología) Y el día 6 Noviembre 2º A y 2º B con los profesores Fernando Gómez y Charo Alevesque (Educación Física)

En la visita nos guiaron los monitores David y Lucas. Lucas tiene un blog de naturaleza muy recomendable: NATURALEZA, pueblos, ríos.  (naturalezadmip.blogspot.com)
Puedes ver más fotos de la salida en este enlace: Huerva Nov 2014 2ESO-

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STEPS TO SOLVE A SCIENTIFIC  EXERCISE

(Natural Sciences: PHYSICS) 2º ESO

  1.  Read the problem carefully
  2.  Write the formula that you need.
  3.  Use the data that you know.
  4.  Calculate.
  5.  Write the result with the correct units.

 

image from

 

 

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Last week when explaining The Earth´s Internal Energy and its effects: Earthquakes, volcanoes, folds, faults and orogenies, a couple of students form 2ºESO A, came up with a very interesting question. In fact, not all the scientist agree with a same answer.

 Why aren’t there any volcanoes in the Himalayas?

If you want to know, follow this link:

DSCN9408

Picture by zombra (Annapurna Base Camp 2012)

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This was the fantastic project done by David Aladrén and Pablo Torralba, students from 2ESO D.

In this presentation they explain step by step the whole process to make the kaleidoscope:

 

It is one example of the Light expriments done by the kids during Xmas holidays.

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This is a funny song to know about Alfred Wegener, his Continental Drift theory and the posterior Plate Tectonics Theory.
The title of the song is : Continental Drift (or: the posthumous triumph of alfred wegener) you can also listen to the acoustic version.

The band is The Amoeba People

Hereby the lyrics:

In the year of 1910 there was a scientist
Whose name was Alfred Wegener
He noticed that the continents looked just like
Pieces of a broken puzzle
By 1915 he called it Continental Drift

It caused a rift
With his fellow scientists (who sang)
Ha! Ha! Alfred Wegener!

You are a crazy man!
Ha! Ha! Alfred Wegener!
You are a crazy little man!
They reminded him he had no proof

For how or why the continents could do this
And until you show just how or why
You merely have one interesting hypothesis
Until this evidence we see
You don’t have a theory
Ha! Ha! Alfred Wegener!
You are a crazy man!
Ha! Ha! Alfred Wegener!
You are a crazy little man!In the year of 1930
On an expedition to Greenland
Wegener got caught in a blizzard
When they finally found him
It was much, oh much too late
And they buried him in an icy mausoleum30 years after he died
A new idea came to light
Plate Tectonics, Plate Tectonics
It changed the way geologists saw the world
And brought Continental Drift back to lifeNow everybody sings:

Yee haw! Alfred Wegener!
You are a brilliant man!
Yee haw! Alfred Wegener!
You are a brilliant, brilliant man!

Continental Drift!
Alfred Wegener’s theory!
Continental Drift!
Alfred Wegener’s theory!
Continental Drift!
Alfred Wegener’s theory!
Continental Drift!
Alfred Wegener’s brilliant theory!

credits

released 01 January 2012
words and music by Ray Hedgpeth

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