martes, 24 de mayo de 2016

The magnetic train

The magnetic train
 
 
 
¿How does it works?
 
It works like that because is flying in the super-magnets.
Is a transport that uses magnetic levitation to transport people from a place to an other without touching the graund.
 
 
 
¿what are the components?
 
The magnets , the rail and the train.
 
 
 
 
 
Other things.
 
  1. There are only two in the world
  2. It overcomes the 600 kmph
  3. the two tipes have a diferent mechanism
  4. It name is : "el tren bala japonés" or the maglev train
 
 
 
 Resultado de imagen de the magnetic trainResultado de imagen de the magnetic train
 

 
 This is one tipe                    and this is the other
 Resultado de imagen de the magnetic train

The dishwasher

THE DISHWASHER



REALLY WHAT THE DISH WASHER WORKS WHITH MAGNETISM????

YES, OF COURSE 
The dishwasher works with magnetism because it has a solenoid that 
is a piece of metal with a wire around it.

When the machine is switched on, then the electricity passes through the wire and finally the metal is magnetized   







AND WHO INVENTED THE DISHWASHER??????


The dishwasher was invented by Josephine Cochrane. She presented it at the Chicago World's Fair of 1893.

A curiosity about Josephine Cochrane is that it is the granddaughter of the inventor John Fitch who invented the steamboat.
She said : "If nobody invents a machine that can wash the dishes
then i will do it myself." and she did it.

It was not until the mid twentieth century where the dish washer began to routinely installed in the kitchens of lots of house wives impatiences to have more free time because with this machine it saves a lot of time.

OPERATION OF THE FIRST DISHWASHER

Josephine adjust each individual compartments around a wheel that was in a large copper pot , when the engine starts , the soapy water came out from below with such pressure that cleaned the dishes.

AND ... WHAT IS THE PROCESS OF A DISHWASHER?????

The process of a dishwasher is divided into several steps:

                                                                                      

1. Fill
2. Heating
3. Detergent
4. Washing process
5. Emptying water
6. Emptied


I hope you learned a lot with my work!!!!!

























Magnetism and Electromagnetism

                                                                    The drill  



    The drill is an electric tool that makes holes. You can find it in tool shops,
     workshops and tool factories.
   





                                Who invented them and when?
                               Types
      
    These are some types of drills:
          
 Desktop drill: was made by James Nasmyth in 1838.
 Column drill: was made by Joseph Whitword in 1850.
 Radial drill:    was made by Sharp, Roberts and Co in 1851

          
      How does it work?
       
      First, you have to put a screw on the tip of the drill,
 then you put the drill where you want to make the hole.
  After that you press the button and the drill makes the hole.


       Materials that the drill can drill.
     
   DRYWALL(MATERIAL THAT SOME WALLS ARE MADE OF)

       WOOD
       METAL(SOMETIMES)
       HARD PLASTIC(SOMETIMES)
       ETC.


    Relationship between the drill and magnetism.

   The relationship between the drill and magnetism is that
   the electric motors have an electromagnet, that is the thing 
   that move the tip.
   
  In my opinion the drill is a very useful tool because if 
  it didn´t exist we couldn´t make holes.

   

THE DIGITAL BLACKBOARD

THE DIGITAL BLACKBOARD.





TODAY I AM GOIN  TO TALK ABOUT A THINK THAT US ELECTROMAGNET THAT IS......
THE DIGITAL BLACKBOARD,WHY? BECAUSE THE DIGITAL BLACKBOARD HAVE CABLES THAT WHEN YOU HAVE THE PENCIL AND YOU PUT IN THE DIGITAL BLACKBOARD THE CABLES MOVE AND YOU CAN DROW PLAY AND DO LOTS OF THINGS,BAT, WHY THE CABLES MOVE? GOD QUESTION, BECOUSE THE CABLES HAVE MAGNETS INSIDE AN THEN WHEN THE MAGNETS MOVE YOU CAN DROW AND ETC, LIKE THE HARD DISC, BAT THeRE ARE OTHER THINK.
IS THAT THE PENCIL THAT DO THAT YOU CAN DROW HAVE A MAGNET ON THE END OF THE PENCIL AN THAS MAGNET CONECTED TO DE CABLES WHIT THE MAGNETS OF THE DIGITAL BLACKBOARD AND THEN YOU CAN DROW OR OTHER THINKS THAT YOU WANT TO DO IN THE DIGITAL BLACKBOARD.

The Loudspeakers

Elisha Gray

The Loudspeakers


Who do I invent the loudspeakers?
  • The first electrical synthesizer of music was invented by Elisha Gray in 1876. He invented a basic oscillator of note. It used flageolets of steel that his vibrations were transmitted on a telephonic line by the use of electroimánes.


What is a loudspeaker?
    New loudspeaker
  • A loudspeaker is an acoustic driver who transforms electric power into acoustics. This does not happen directly. First, they transform the electric power into mechanics and then the mechanical energy into acoustics.

Older loudspeaker











Parts of a loudspeaker.

  • Magnetic Part: the magnet and the mobile bobbin compose it. Here, the electric power comes to the mobile bobbin placed inside the magnetic field and because of it there produces to itself the movement of the mobile bobbin.
  • Mechanical Part: formed by the cone and his suspension. On the cone there is mounted the mobile bobbin, which on having moved drags to the cone and to make it vibrate. 
  • Acoustic Part: it is the one that transmits to the enclosure of hearing the sonorous energy developed by the cone.



lunes, 23 de mayo de 2016

Brief history of the microphone



The microphone by Inés Devís 








It is a device used to convert sound waves into electrical energy and vice versa in the process of recording and reproducing sound.

The term "microphone" is known since 1827 when it was first used to describe an acoustic device designed to amplify weak sounds. The word comes from the Greek terms "micro" meaning little and "phon" meaning sound.



Today there is a wide variety of microphones according to the transducer used, according to their usefulness (domestic use to industrial use) and according to quality.

Microphone´s parts


Diaphragm: is a membrane that receives the vibrations of our voice and is attached to the system that transforms these waves into electricity.

Transducer device: converts sounds into electricity that is audio

Grille: protects the diaphragm avoiding sound blows and blows falls

Housing: container intended to place all components of the microphone,


Output connector: connection area through the connector carries the signal to the console.

If you are more interesting in these devices, you can see thi web, very interesting.
http://microfonos.com.es/


Electromagnetims

                                                        Electromagnetims





Is a branch of physics which inovels take study of the electromagnetims force.



Examples:
Microwave~To heat food☕
Toaster~To toast the bread🍞
Fridge ~To keep food very cold🍦
Camera ~To takes photos📷




Mobile phone📱☎📞

The mobile phone is a machine that you use to :
•search
•call
•send messages
•play
•listen to music 
•...

 The History of the MOBILE PHONE

The phone was invented by Martin Cooper, in 17/10/1973 .The first mobile was called : Dyna-Trac.