Transcript Eight Primary Technological Developments

Eight Primary Technological
Developments
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Nuclear power
Telecommunications
Computer
Assembly line
Jet engine/Air Transport
Plastics/Synthetic polymers
Liquid fuel rockets
Television
Triggers of Innovation
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Deliberate attempts
Unexpected discovery
Unrelated developments
War and Religion
Accidents
Weather
Burke shows to us
• No inventor works alone
• Rate of change is proportional to rate of
information exchange
– Medieval Ind. Revolution
– 17th century specialization of knowledge via
printing press
– 19th century telecommunications
How Do We Cope With
Increasing Rate of Change?
• Scrap all technology and go rural.
• Selective research only.
• Stop R&D and share out existing
technology
• Keep going the way have.
Electronics
• Transformer- changes AC voltage
• Diode- allows unidirectional e flow
Rectifier changes AC to DC
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Vacuum tube - early electronics
Triode - electric switch & volume control.
Transistor- solid state electronics (doped Si or Ge)
Integrated circuit - Silicon chip electronics
Nanotechnology - Atomic size electronics
Scientists
Scientist
Newton
Accomplishment Connection
Universal law of
gravitation
Clausius 2nd law of
thermodynamics
Einstein Photoelectric
E= mc2 = hv
Faraday
Electromagnetic
induction
Bernoulli Physics of fluids
Space travel
Refrigeration, steam
power and Entropy
Photoelectric effect and
atomic energy
Electrical generator
Air travel
Some more names
Ned Ludd
G.W.
Carver
Napoleon
Guericke
Bouchon
Oersted
Muybridge
Perkins
Edison
Stem Cell
Research
Appert
Moissan
Allotropes Buckminste Genetic
Global
& Nanotech rfulleranes Engineering Warming
What you should know
• Major technological developments according to
Burke
• The six triggers of innovation and examples of
each.
• Explain why rate of innovation is proportional to
rate of information exchange.
• What can we do to better cope with the increase
rate of technology change.
What you should know
• How a transformer works
• 1000 volts and 2 amps enters a transformer with
10 coils and exits with 20 coils. What is the exit
voltage and amperage? How does the wattage
change?
• What does a diode do and how does it work.
Explain the vacuum tube and transistor.
• Explain what a triode is, how it works and what it
may be used for in electronic equipment.
What you should know
• The difference between direct and alternating
current.
• Why AC, not DC is used to transmit electricity
over high voltage lines.
• Explain nanotechnology and how it’s currently
being used. Explain the possibilities of this new
technology.
• What is Acid Rain?
What you should know
• The five great scientist discussed in class.
• There contributions to science and their
connection to technology.
• What are Luddites and when and why were they
created.
• George Washington Carvers contribution to
science and technology.
• Are human responsible for global warming?
What you should know
• Suggest at least two possible causes for our
current warming trend.
• What are allotropes and how do carbon allotropes
connect to nanotechnology?
• What is gene splicing and what purpose has it
been used for.
• What is Genetic Engineering.
• What are stem cells and for what purpose is
current research directed.