Thursday, 19 May 2016

HOW HAVE INVENTIONS CHANGED ART AND MUSIC?

Many artists now use computer software to produce their work. Musicians digitalise music, so they can change the pitch and tone of the music by using modern technology. Digital recording makes it possible to mix different tracks to produce a new version of as ong. Instruments can be added or removed from the recording.
By Rebecca Wilson (originally posted to Flickr as Vicariously) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Other artists use modern software and technology to produce digital images. They use stylus and touch-sensitive pads to draw or to edit digital images.
Photo via youtube

There are many inventions to help us doing exercise: running machines, exercise bikes, rowing machines, heart rate monitors...
By Tomwsulcer (Own work) [CC0], via Wikimedia Commons

Thursday, 5 May 2016

MODELO DE EXAMEN DEL TEMA 14

Hola, aquí os dejo el modelo de examen para el tema 14 de matemáticas:
Y aquí os dejo las soluciones:

AREA Y VOLUMEN DE UN CONO

Aquí está la fórmula que necesitamos para calcular el área y el volumen de un cono:

ÁREA Y VOLUMEN DE UN CILINDRO

Aquí tenéis las fórmulas para calcular el área y el volumen de un cilindro:


ÁREA Y VOLUMEN DE UNA PIRÁMIDE

Aquí os dejo esta imagen que os explica cómo calcular ambas cosas.

ÁREA Y VOLUMEN DE UN PRISMA

Hola,
aquí os dejo esta imagen que explica como se calcula el área de un prisma y también el volumen.

WHAT INVENTIONS DO WE USE IN OUR DAILY LIVES?

Inventors design machines to solve problems or to make something easier to do.
Modern machines have changed the way we live in many ways:
  • Food production: machines have changed the way the food is prepared in large factories, sometimes it has been frozen or packaged in a tin, so it stays fresh for longer periods of time.
    Cheese production. Photo By No machine-readable author provided. MatthiasKabel assumed (based on copyright claims). [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
  • Clothing: most of our clothes contain synthetic fabrics (nylon, viscose). So they're cheaper, more resistant to temperature than natural fabrics and they do not wear out so quickly. 
  • Healthcare: Doctors use microscopes, computers, X-ray machines and scanners...
    By Cmglee (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
Many inventions have changed the way we travel:
The bicycle, cars (before the invention of cars we travelled by horse and carriage), steam engine, the hovercraft, aeroplanes...