Lecture 12-Space Exploration

8/7/2019 Lecture 12-Space Exploration

1/24

AVIATION HISTORY

Lecture 12 : Space Exploration

By: Zuliana Ismail, 2010


2/24

Space exploration is the use of

astronomy and space

technology to explore outerspace


3/24

Space Exploration

The exploration of space began , with

launch of the first artificial satellite,

Sputnik 1, which the Soviets sent intoorbit in 1957.

Globally, 43 countries now have their own

observing or communication satellites inEarth orbit.


4/24

Soviet cosmonaut Yuri Gagarin

became the first human in space

in 1961.

On July 20, 1969, Astronau

Neil Armstrong took a giant

step for mankind as he ste

onto the moon.

Valentina Tereshkova

First Human go to Space


5/24

What is Satellites??


6/24

What is satellites

Satellites are made by scientists and

technologists to go around the earth (orbiting)

and do certain jobs.

Satellites have many applications includingcommunications, weather observations and

military uses.

All satellites use microwaves for sending

information. These waves travel at the speed of light and are

able to pass through the Earths atmosphere.

On Earth we can receive satellite data through

ground station


7/24

How go to outer space

A space shuttle goes about 17,500 mph to keep

its self flying.


8/24


9/24

How Does a Satellite Get Into Space?

A satellite is launched or sent to the space by

using the rocket.

Satellites are launched from the places near theocean, so that when the first rocket stage falls

away, it lands in the water and not on people.

Examples of places to launch rocket in the world

are: Cape Canaveral, Florida; Kourou, FrenchGuiana; Xichang, China, and Baikonur, Kazakstan.


10/24

How Does a Satellite Get Into Space?

When a satellite is launched, it is placed in orbit

around the earth.

The earths gravity holds the satellite in a certainpath as it goes around the earth.

Once in the orbit, satellite can start sending and

receiving signals.


11/24

Malaysias Satellites

Malaysia-East Asia Satellite

(MEASAT) system.

RazakSATsatellite

Satellites GroundStation


12/24

Access to space is very

expensive.Why go there?


13/24


14/24


15/24

Satellites Telecommunications

Communications via satellite allows high-speedtransmission for telephony, TV and internet aroundthe world.

Satellites provide a clear data transformation.

In principle, satellites enable a simpler system,without cables, to provide a vital link everywhere.


16/24

Earths Observation Satellites

Earth observations satellites is in a wide range ofapplications.

This satellite take very accurate pictures of theearths surface, sending back images that tell

scientists about changes that are going on around

the world in such areas as agriculture, water

pollution, disaster and meteorology. Meteorological satellites can forecast weather

and earlier weather info could be used to ensurethe safety of flight or people in ground.


17/24

Navigation Satellites

GPS-Global Positioning System. GPS satellites can navigate us at anytime, any

weather & anywhere on the Earth.

Used by car, aircraft and personal uses to knowthe direction.

It is now almost impossible to get lost if you havethe right equipments like GPS


18/24

Research in Space

Many of scientific experiments cant be done inEarth due to presence of gravity.

However, those experiments can be done more

effectively in space.

This is due to zero-gravity environment in Space.

International Space Station(ISS)


19/24

International Space Station

ISS is the largest and most complex international

scientific project in history.

Led by the United States, the International Space

Station draws upon the scientific and technologicalresources of 16 nations: Canada, Japan, Russia, 11

nations of the European Space Agency and Brazil.

The ISS provides a platform to conduct experiments

that require one or more of the unusual conditionspresent on the station.

The primary fields of research include human

research, space medicine, life sciences, physical

sciences, astronomy and meteorology


20/24

Space Researches Benefits

Researches and technologies about space

exploration are very important for humanity.

Research done is space contribute to improvingnational security, the economy, productivity and

lifestyle.

Since 1976, more than 30,000 applications

space technology have been brought down earth to enhance our everyday life.


21/24


1. Technology - space program technology has resulted in

more than 1,500 commercial products, including satellite

radio, digital and satellite television, cell phone

technology, and GPS navigation.

2. Medical - Digital hearing aids, miniature heart pumps,

cancer detection devices, eye surgery, and numerous

other medical and safety devices and improvementstrace their origins to space technology.

MRI technology(brain

scanners) in hospitals

worldwide came from

technology developed inspace

Pharmaceuticals

produced in space

with zero gravity have

purities far higher than

any produced onEarth


22/24


3. Electronics: The field of electronics and computers have

also benefited from the space exploration. The

astronauts have manufactured miniature electronic parts

that could only be produced in the space during theirexperiments in the space stations and space shuttles.

4. Environmental: Clean & Safe Water. Water-purification

technology used on the Apollo spacecraft is nowemployed in several applications to kill bacteria, viruses,

and algae in community water-supply systems.


23/24


24/24

Lecture 12-Space Exploration

Documents

Transcript of Lecture 12-Space Exploration