what is technology?. technology is comprised of the products and processes created by engineers to...
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What is Technology?
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What is Technology?Technology is comprised of the products and processes created by engineers to meet our needs and wants.
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Technology vs. ScienceTechnology
– Study of our human-made world
– Deals with “what can be”
Science– Study of our natural
world– Deals with “what is”
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Technology vs. Science continued• TechnologyTechnology
– Made up of sub-categories:• Information• Communication• Bio-related and
Agriculture• Medical• Environmental• Production
– Manufacturing– Construction
• Materials• Transportation• Energy and Power• Nanotechnology
• ScienceScience– Made up of sub-categories:
• Earth Science• Biology• Chemistry• Physics• Astronomy• Other specialty areas
– Quantum Physics– Computer Science
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Information TechnologyInformation Technology allows us to send
signals around the world.Examples:
Television, Internet, satellite, GPS, cell phones
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Impacts of Information TechnologyPOSITIVE IMPACTS
NEGATIVE IMPACTS
COMPUTERS – use of a computer to gather data easily and store
INTERNET – using to store information for easy access
OBSCELENCE – machines need to be maintained and upgraded INTERNET – Harder to distinguish between reliable and unreliable sources
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Communication Technology
Communication Technology is giving or exchanging information. Examples:
Magazines, DVDs, photography, video games
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Impacts of Communication TechnologyPOSITIVE IMPACTS
NEGATIVE IMPACTS
CAD – using a computer to generate drawings
INTERNET – a means of communicating quickly and inexpensively over long distances
DIGITAL CAMERAS Allow you to edit and print only the pictures you like
PAPER USAGE – people tend to create and print more INTERNET – people tend to misuse the internet for personal gain
COMPUTERS, PRINTERS, & DIGITAL CAMERAS Make forgery and plagiarism easier
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Bio-related and Agricultural Technology
Biotechnology transforms living things into products or new forms of life.
Examples:
Genetic engineering, bionics
Agricultural Technology produces plants and animals for food, fiber, and fuel.
Examples:
Irrigation, food preservation,
weed and insect control
Both deal with living things:
Plants, animals, and people
DNA Replication image from the Human Genome Project
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Impacts of Bio-Related Technology
POSITIVE IMPACTS
NEGATIVE IMPACTS
HEALTH – Improves quality of life, vitamins, vaccines, medications
HEALTH – Side effects of some medications – nausea, shortness of breath, etc.
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Impacts of Agricultural Technology
POSITIVE IMPACTS NEGATIVE IMPACTS
FERTILIZERS– can make plants produce more food per acre
FERTILIZERS– have found their way into ground water, polluting good drinking water
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Medical Technology
Medical Technology creates tools
to treat disease and injury.
Examples:
Lasers, prostheses, ultrasound, medications
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Impacts of Medical Technology
POSITIVE IMPACTS
NEGATIVE IMPACTS
X-RAYS – Make it easier to diagnose injuries
X-RAYS – Too many x-rays can cause cancer.
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Environmental Technology
Environmental Technology creates tools to minimize the effect of technology on the development of living things.
Examples: Hybrid vehicles, conservation, waste management (recycling)
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Impacts of Environmental Technology
POSITIVE IMPACTS NEGATIVE IMPACTS
RECYCLING – Improves water and air quality
RECYCLING – Disposal of garbage is more complicated and time consuming
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Production TechnologyProduction Technology is the
manufacturing of physical goods on an assembly line and the construction of structures on a job site.
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Manufacturing changes natural or synthetic materials into usable products.Examples: Clothing, vehicles, food
Construction Technology builds structures that support loads and protect us from the environment.
Examples: House, bridge, roads
Production Technology
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Impacts of Production TechnologyPOSITIVE IMPACTS NEGATIVE IMPACTS
MANUFACTURING – MANUFACTURING –
CONSTRUCTION – CONSTRUCTION –
New products help to make our life easier and increase leisure time
Many industries use materials that can harm the environment
Provides shelter, improves roads, creates employment opportunities
Noise and debris, traffic problems, accidents and injuries
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The development of materials with outstanding combinations of mechanical, chemical, and electrical properties that make other advances possible.
Examples: Mosquito repellent clothing, artificial skin grafts for burn victims, advanced building materials such as composite decking
Materials Technology
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Impacts of Materials Technology
POSITIVE IMPACTS NEGATIVE IMPACTS
NEW MATERIALS – able to reuse recycled materials to help the environment
NEW MATERIALS – don’t know how the materials will behave over long periods of time.
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Transportation Technology
Transportation Technology Provides a way for people, animals, products, and materials to be moved from one place to the next.Examples:Flight – Airplane, rocket, space shuttleLand – Train, subway, automobile, bicycleWater – Commercial, cruise shipsNon-vehicle – Conveyor belts, pipelines, robots
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Impacts of Transportation Technology
POSITIVE IMPACTS
NEGATIVE IMPACTS
Traveling long distances faster and easier
Accidents, Pollution,
Use of energy
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Energy and Power TechnologyEnergy is the ability or capacity to do work.
Examples:Chemical Energy Gasoline
Mechanical Energy MotionThermal Energy Steam
Electrical Energy ElectricityRadiant Energy Light
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Energy and Power TechnologyPower is the rate at which energy is
transformed from one form to another.Examples:
Electrical power – provides light and operates motorsMechanical power – moves automobiles, trains, and
airplanesFluid power – uses fluids to produce motionHydraulic – uses a liquidPneumatic – uses a gas
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Impacts of Energy and Power Technology
POSITIVE IMPACTS NEGATIVE IMPACTS
Without energy and power, most technologies would not exist or work
Overuse of nonrenewable resources
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Nanotechnology
Nanotechnology is manipulating materials on an atomic or molecular level.
Examples:
Sensors, Nanobot, molecular manufacturing
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Impacts of Nanotechnology
POSITIVE IMPACTS NEGATIVE IMPACTS
IMPLANTED SENSORS IMPLANTED SENSORS
Continuously sense and adjust medical treatment
Impede privacy
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Image Resources
Microsoft, Inc. (2008). Clip Art. Retrieved September 10, 2008, from http://office.microsoft.com/en-us/clipart/default.aspx
National Aeronautics and Space Administration (NASA). (n.d.). Genesis: Search for origins. Retrieved September 10, 2008, from http://genesismission.jpl.nasa.gov/educate/scimodule/cosmic/ptable.html