pdi

The pdi (digital interactive slate) is a computer connected to a projector that projects his image on a slate that controls the computer.He manages with a type of pencil with metal top that it does of mouse and of a wireless keyboard.

In my class there is a pdi and my personal opinion is that this very well because it is mas entertaining that a normal blackboard.To my class they have taught us to handle it well.

credits:

wikipedia digital blackboard 20/6/2007

sahara

صحراء

the sahara is a desert in the nord of africa.

The desert of the Sahara is the biggest desert of the world, with approximately 9.065.000 km ² Has more than 2,5 million years.It borders on these countries: Algeria, Tunis, Morocco, Western Sahara, Mauritania, Níger, Lybia, Egypt and Chad.

Only it has snowed once in the sahara in February 18, 1979 in the part of argelia.
For the desert it is possible to travel in camel, in 4x4 or walking.

credits: wikipedia

podcasting

The podcasting is a sound file that you put in your blog or in your web page and the people can listen in the moment or to disburden it.

There are many blogs that alone have podcasts.There are many types of podcast there are people who them makes short other one that makes them long putting musical or putting them of fund also there are people who does as programs of radio etc...

the majority podcasts are of technology and science.

credits:
wikipedia in wikipedia searrch podcasting www.wikipedia .com