Transcript WHPP Unit 7 Section 13 Advances in science and technology

TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Contemporary Technological Changes
Unit 7 Section 13
TYWL: I can evaluate the importance of
technology on today’s culture. I can recognize
key figures of social change in the 20th century.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Question of the Day
Twentieth-Century International Developments
Berlin Blockade (1948)
Cuban Missile Crisis (1962)
Brezhnev Doctrine (1968)
How did the developments above affect international politics?
a. They inspired the creation of the United Nations.
b. They intensified Cold War conflicts and tensions.
c. They started cooperation between the United States and the former
Soviet Union.
d. They represented a global preference for democratic values,
institutions, and governments.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
The space race began during the Cold War as
the United States and Soviet Union competed
with each other to explore outer space.
•
In 1957, the Soviets launched Sputnik, the first
artificial satellite.
•
The U.S. Apollo program landed a man on the
moon in 1969.
•
Since the Cold War ended, the United States and
Russia have cooperated in space.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Space science continued to develop after Apollo.
•
Scientists and
engineers have
launched rockets to
other planets and
landed robotic vehicles
on them.
•
More than a dozen
countries built the
International Space
Station for exploration
and scientific research.
The International Space
Station in 2011
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Thousands of
satellites have
been launched
to orbit the
Earth, for
three specific
purposes.
• Communication: television,
telephones, high-speed data
transmission
• Observation: data for
scientists, weather
forecasters, the military
• Navigation: beam precise
locations to ships and others
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
The invention of the computer created an
information revolution.
•
Computers run businesses and power plants.
•
They help scientists do their research and enable
global communication.
•
The creation of the Internet made e-commerce
possible, which led to economic growth.
•
Social networking links people around the world.
Approximately one third of the world’s population
is online.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
The first computers were built in the 1940s.
•
After the invention of the silicon chip, it was
possible for manufacturers to make personal
computers (PCs).
•
PCs became available in the 1970s and replaced
typewriters and account books.
•
Over time, scientists, teachers, engineers, and
urban planners used computers to perform a
wide variety of tasks.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
• High-tech jobs
– 20 % of the workforce
demanded that
workers have special
skills
– Computers made
fortunes
• Ex. Bill Gates-He
founded Microsoft
• Internet businesses
called dotcoms
created fortunes for
their founders
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
The Communications
Revolution
Information Superhighway
•President Clinton wanted
to create an information
superhighway--this would
be a computer network
that would link people
around the world.
• Clinton appointed VP
Gore to oversee the
government’s role in
creating information
superhighway.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Telecommunications Act
•Congress passed the
Telecommunications Act-this law allowed telephone
and cable companies to
enter into each others
companies —this led to
an increase in mergers.
• Examples: Time
Warner Cable
8C: Calculate percent composition and empirical and molecular formulas.
ScientificTEKS
Advances
Enrich Life
Advancements
• Pathfinder and Sojourner transmitted pictures from the
surface of Mars.
•The Hubble Space Telescope was used to discover new
planets.
•The Human Genome Project announced in 2000 that it had
mapped the genes of the human body.
Developments in medicine and biotechnology
have given people new tools to combat and
prevent disease.
•
Medicine was also transformed by
surgical advances such as organ
transplants and the use of lasers.
•
Computers have made diagnosis
easier.
Computer images of the
brain and other organs
allow doctors to diagnose
many diseases.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Genetic researchers Watson and Crick revealed the
“double helix” structure of DNA.
Research in genetics and genetic engineering has
produced new drugs and new strains of fruits and
vegetables. It has also made cloning possible.
These breakthroughs have brought benefits and
debate over the ethics of modified foods and the role
of science in creating life.
TEKS 8C: Calculate percent composition and empirical and molecular formulas.
Overall, science
and technology
have improved
the standard of
living for many
people.
•
Life expectancies have
risen worldwide as a
result of increased
agricultural production
and breakthroughs in
treating disease.
•
Though significant
challenges remain,
people will continue to
work toward solving
global problems in the
decades to come.