Topic 4.0: Society And The Environment Are Affected By Space Exploration Flashcards
Dangers when launching a spacecraft
Risks that could occur when being trapped in a small cockpit above lots of highly explosive fuel
Poor weather conditions, malfunctioning equipment and even the presence of birds can interfere with launching rockets
Dangers once launched into space
Floating debris, meteoroids and harmful doses of radiation must be faced
Outside of earths atmosphere the effects of solar and cosmic radiation are magnified because there is no protection
They can burn the electronic circuits in a satellite and tue can also kill cells in vital organs and damages the bone marrow in humans. Polyethylene shielding can absorb the radiation
Dangers of the entry into earths atmosphere
The path of the spacecrafts re-entry into earths atmosphere must be perfect
If it is too shallow of an angle the craft will bounce off the atmosphere and back into space
If it is too steep of an angle the craft can move to quickly through the atmosphere and burn up
Space junk
Refers to all the pieces of debris that have fallen off of rockets, satellites, space shuttles and space stations and Eemian floating in space
The debris includes bits as small as flecks of paint or a bolt and large items such as dead satellites.
If the space garbage is just above the outer reaches of earths atmosphere, it can stay in orbit for thousands of years
The hazards on earth
Space junk
Some space junk posed a risk to earth as well
There is a possibility that prices of satellites can make their way to earths surface
They can shower radioactive debris when returning into earths atmosphere
The re-entry does not tend to take the lives of people, but the clean up takes a long time and costs a lot of money
The hazards in space (space junk)
Most of it will burn up if it passes through earths atmosphere, but until it does, it will remain a very real threat to anyone or anything travelling in space
The debris can bombard the hull of a spacecraft and cause catastrophic damage! They are known as micrometeorites and they also can damage other space tech
The affects of the smallest piece of debris can be devastating because of its very fast speed
Canadarm
It is a rebotic arm that was debuted in 1981 on a U.S space shuttle. It is proven to be one of the most versatile pieces of tech ever designed for the space shuttle program
It is manipulated by reintegration control and has launched/retrieved satellites, helped fix optical apparatus on the Hubble Space telescope and put together modules of the International space station
Alouette 1
Canada in 1962 and the country became among the first nations in the world to use a satellite for non-military purposes.
Annick 1
Launched in 1972 in Florida by Canada
That satellite gave the whole country telecommunications coverage for the first time.
Canadarm 2
The arm can bend around corners and grasp objects with its computer controlled fingers, it can also move itself around the outside of the international space station, crawling and making every part of the space station accessible
First Canadian in space
Marc Garneau, who participated in the space shuttle mission in 1984
Canada provided tech for the Mars Pathfinder mission…
It was a Canadian designed map that the Sojourner rover rolls down in 1997
First Canadian to walk in space
Chris Hadfield walked in space when he helped deliver Canadarm 2 to the international space station in 2001
First Canadian female astronaut
Roberta Bondar, she flew on a shuttle mission in 1992
Potential value of spaces resources (Asteroids/sun energy)
The energy needs on earth would be satisfied for a long time
Scientists are looking for ways of capturing solar energy in space and beaming it to earth. Space has a lot of mineral resources, such as the astroid belt that has much rocky chunks floating in space. Asteroids have been found to contain iron, as well as gold and platinum group metals that can be worth lots of money and be good mineral sources
