1. Topic 3.2 – Technology develops through change
Mechanical Systems

2. Technology develops through change
Remember the pop can and all the changes it went through?
Let’s check out a sewing machine.
It was invented in the 1800’s
The first picture is the original sewing machine that relied on a hand crank and was only able to perform very simple stitches
The second picture was a MAJOR step forward towards the foot operated sewing machine
This allowed both hands to be free to better guide the fabric
Now the NEWEST AND BEST sewing machine can do a variety of jobs with the push of a button.

3. Our advancements in technology go hand in hand with out advancements in science.
If there wasn’t anybody trying to discover new ideas, where would we be?
JUST IMAGINE, No electricity? Dang!

4. Trains
The maglev train in Japan are powered by electricity and run on magnetic tracks.
THEY ACTUALLY LEVITATE! THEY NEVER TOUCH THE TRACKS!
These trains do not experience any friction which allows it to travel over 350 km/h.
This train resulted from physics experiments with particle accelerators, believe it or not!

6. Over time, society has tried to create what would be next for scientific advancements.
Robots were being created for the movies in the 50’s and 60’s and in the 70’s robots were actually being made for practical reasons.
Today many factories have now relied on robots to do the tasks that were once done by humans.
Robots perform certain tasks much faster and more efficiently than humans
Examples: diffusing bombs, welding, factories

7. New Technology from a change in society
Why did the need for robots become such a big demand in factories?

8. Simple Answer: GREED
In the past, people worked in boring and dangerous conditions for VERY low pay
By the mid 1900’s, people started to demand more money and better working conditions
As the wages went up the industry started to look for ways to replace humans in certain parts of the jobs
Bottom line: robots could do humans work quicker and for less money!

9. New technology from a change in environment
Cars are being change to develop new ways to harness energy.
People are caring A TON about oil spills and environmental accidents
Technology is now starting to help meet these new goals of environmental salvation
Newer and better technology for oil spills!
Remember all the damage that happened with the BP oil spill in the gulf of Mexico.
New technology has come about now to prevent this