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Chapter 12 Space Exploration. Canadian Contributions to Space Exploration List Canadian contributions and partnerships to space research and exploration: (412-415) The Canadarm 1 The International Space Station Canadian Space Station Remote Manipulator System (SSRMS) or Canadarm 2
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Canadian Contributions to Space Exploration • List Canadian contributions and partnerships to space research and exploration: (412-415) • The Canadarm 1 • The International Space Station • Canadian Space Station Remote Manipulator System (SSRMS) or Canadarm 2 • Special Purpose Dexterous Manipulator (SPDM) or Canadahand • Give examples of Canadian Astronauts. (Roberta Bondar, Marc Garneau, Chris Hadfield) (NIT) • Technologies Used to Explore Space • Describe the science underlying some technologies designed to explore space. (rocket propulsion, space suits, satellite orbiting, probes, rovers, optical telescopes, radio telescopes) (413-420)
List Canadian contributions and partnerships to space research and exploration: (412-415) • The Canadarm 1 • The International Space Station • Canadian Space Station Remote Manipulator System (SSRMS) or Canadarm 2 • Special Purpose Dexterous Manipulator (SPDM) or Canadahand
The Canadarm 1 • Used to move equipment in space and is also known as the Shuttle Remote Manipulator System. • It is 55 feet long and weighs approximately 905 pounds. • It can move loads up to 266 000 kilograms. http://www.hwdsb.on.ca/rlhyslop/Space/webpage/canadarm_1.htm
The arm • http://archives.cbc.ca/science_technology/technology/topics/1090/ • http://www.youtube.com/watch?v=503WZymEriY
The International Space Station • Sixteen countries, including Canada , are involved in this space based lab which orbits about 350 km above Earth. • Canadians are doing work on microgravity- the condition of weightlessness experienced by all objects in space.
http://www.associatedcontent.com/article/5417624/nasas_atlantis_sts_132_departs_international.htmlhttp://www.associatedcontent.com/article/5417624/nasas_atlantis_sts_132_departs_international.html
Canadarm 2 • The Canadarm 2 does everything the Canadarm 1 did but is larger and able to move by itself. • http://www.5min.com/Video/How-Canadarm2-Works-171017711
GALAXY –collection of stars, planets, gas and dust held together by gravity
Distances within our Universe are measured in light years • 1 light year = distance light will travel in 1 year = 9.5 trillion km • Speed of light = 300, 000 km/s
Hubble’s Proposal • The Universe is expanding, galaxies are moving away from each other • The further away the Galaxy, the faster it is moving
Evidencethat the universe is expanding–Red Shift Analysis -Based upon Electromagnetic Radiation (waves) -A spectroscope allows astronomers to view patterns of different stars, thus astronomers can identify and determine patterns of stars
Red Shift • Spectrum of a non-moving star • Spectrum of a star moving Towards Earth (waves contract as the object moves closer) • Spectrum of a star moving Away from Earth (waves expand as a distance increases)
The Big Bang Theory • Since there is evidence that our Universe is Expanding, it must have started somewhere! • ~13.7 billion years ago there was a massive explosion • Very High Temperatures ~ 1 billion °C
Very Rapid Expansion Open Universe –one that will Expand forever
The Oscillating Theory • Closed Universe –one that will Expand so far and then drawn back by gravitational forces, all the matter will meet again in a “Big Crunch” –This theory says the Universe goes through a series of bangs and crunches in an ongoing cycle –Currently still expanding from the most recent explosion
STELLAR COLLISION THEORY • This Theory says that Our Solar System was created from the spin off of colliding stars!
NEBULAR HYPOTHESIS • Nebulae(Nebula)- H2 gas and dust between stars -When pulled together by gravity, stars form if it is hot enough -A nearby exploding star could have caused a shock wave which started the process • -Starts to rotate as it collapse
SPIRAL • Our Milky Way Galaxy is spiral. Earth is on a spiral arm, we see the center on it’s side at night
ELLIPITICAL • Some of the oldest and largest galaxies are elliptical, more then 50% of galaxies are this shape
DWARF STARS • Small, burn fuel slowly, last a long time (100 billion years) • Red dwarfs to white dwarfs and then they burn out
Giant Stars • Large, burn fuel quickly, last a short time • RED GIANTS to white dwarf to black dwarf OR • SUPER GIANTS supernova to neutron star to black hole
BLACK HOLE • Sphere of extremely dense material with a gravitational pull so strong not even light can pass out of it! • Created when a SUPER GIANT star collapses in on itself
Videos: Black hole • http://video.google.com/videoplay?docid=-3834632996973653146#
QUASAR • Region of extremely high energy which develops around a supermassive black hole as matter is attracted into itself
Careers Related to Space Exploration? • astronauts, scientists, engineers, doctors, pilots, and technicians………..