Uses of friction wheels

Friction wheel are often used in stations and brake runs (usually block-sectioned). 

On some roller coasters, this same method is used on launches, or on lift-hill. This mechanism is so flexible that unlike lift chain it can work for spiral lift hills. Friction Wheels are tires that are connected to the track of  a roller coaster to control the speed of the train

PUBLISHED BY: Carmen

Hi, this week I put a short video of belt drive to see the prasctical application of this machine, click the link to see the video.

BELT DRIVES

CAROLINA.

VIDEO ABOUT GEARS - ÁNGELA

Hi everybody!!! Today I've got for you to remember one part of the explanation of our technology's class today a video about gears and how they work.

It's really interesting and very easy to understand,
here you are:

GEARS


Hope you like it!

Ángela

Hi, I know that we finish the unit of simples machines but this game is really interesting and you can learn with it, click the link to play .

http://www.maxgames.com/play/nuts-and-bolts.html

CAROLINA.

SIMPLE MACHINES

In this unit we were talked about simple machines, so I think this video can be a funny way to learn a little bit more about them. Hope you enjoy :)

Published by Sara

LEVERS

Did you know that we have levers also in our body? you use levers for exaple when you up and down you head or when you walk but in the next link you will find a video that is going to explain it better than me. 

                                                                    LEVERS

Published by Marta

HOW THEY WORK? - ÁNGELA

Hi everyone!! Today I've got some links in where you can see how a crankshaft + pushrood, an excentric wheel or a cam move. They are very useful to understand how they work and maybe they give you some ideas for making your mindmaps.

Here you are:

-Crankshaft + Pushrood =>  http://upload.wikimedia.org/wikipedia/commons/a/ac/Cshaft.gif

-Excentric wheel => http://mc142.uib.es:8080/rid%3D1KBLQ8Z4J-F1RMW0-3GW/excentrica.gif
                          => http://materialdeclase.wikispaces.com/file/view/excentrica.gif/72420631/excentrica.gif

-Cam => http://upload.wikimedia.org/wikipedia/commons/4/41/Nockenwelle_ani.gif
          => http://e-ducativa.catedu.es/44700165/aula/archivos/repositorio//1000/1102/html/levaanimacion.gif


Hope you like it and use it to revise :)


Ángela