Preparation of timber for Industry

Visit this link and read about the preparation of timber for its commercial use
Preparation of timber
and answer these questions:

1. List and explain (in few words) the stages of timber proccessing
2. Which tool is used to cut the logs
3. List different ways for cutting the logs 
4. Why is it neccesary to season the wood

Lesson 2: Graphic expression

Go to the following link
Technical drawing
You will find a presentation about Technical drawing tools / Materials.
Click Start to begin the test:
Type in a message the rigth answer to each question and send me an email with them (Formulario de contacto)

Technology Depleting Resources and Pollution

Connect to these page and read the content:

Technology Depleting Resources and Pollution

Answer to these questions:

1. When does most of the environmental impact of technology take place?
2. What takes more enrgy, creating a computer or using it? Give a reason?
3. List the amount of resources required to build a single computer
4. Why does Santa_Clara County have more EPA-identified toxic waste sites, called Superfund sites, than anywhere else in the USA.?
5. What is Technotrash?
6. What happens to american Technotrash? Who proccesses it?

Technologies timeline

Connect to this page in the internet:

http://www.datesandevents.org/events-timelines/12-technology-timeline.htm
Answer these questions:

• When did they invent the first known calculator?
• Where did they invent the suspension bridges?
• Who invented the microscope? When?
• Vaccunation was a breaktrouh in medicine. When was it invented? Who did it?
• When was electric motor invented?
• In which two centuries have more inventions happened?

Electricity

Connect to this link. Read the article and answer

• What is electricity?
• What do we mean when we say that electricity is an energy carrier?
• Give several examples on how electricity has changed our lifes

Electricity for kids 

Introduction to electronics

Watch this video and answer

• Who were the inventors of the transistor?
• What is the importance of this invention?
• In Silicon's valley, there is a remarable building. Which is its adress?
•  Why is this adress important for?
• Where the iventors of the transistor awarded? How?

Mechanisms in real life

You have studied 3 general kind of mechanisms (simple, trnsmission and transforming) and several cases of each one (such as lever, pulley, gears). Find one example of these (i.e. of the lever) in the real life and add a comment about what it is used for and where you found it