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Space and Technology. Chapter 6 Lesson 3 Page 225. How does Technology help people live in Space ?. Conditions in space are very different than they are on Earth In space there is near vacuum, extreme temperatures, and microgravity
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Space and Technology Chapter 6 Lesson 3 Page 225
How does Technology help people live in Space? • Conditions in space are very different than they are on Earth • In space there is near vacuum, extreme temperatures, and microgravity • To help people live in space, engineers have created technology that provide air and insulation as well as the ability to work in microgravity
Vacuum • Space has no air • Vacuum- a place that is empty of all matter • Except for a few stray atoms and molecule, space is pretty much empty, it is just space • No air so spacecraft must be air tight • No air means nothing to hold the sun’s heat, so in direct sunlight really hot, in shade really cold- space shuttle must be insulated
Microgravity • Read page 225 • Microgravity- weightlessness (similar to floating in a pool) • Mass remains the same, but their weight would register zero • Earth’s gravity still has an affect on them and keeps them in orbit • They had to create device that can be used in microgravity
How has Space Technology Benefited People • Space program has led to many benefits • The space program has developed new technologies that help scientists work and new consumer products that people can use • Technology is essential for scientists doing their research, and helped them learn more about remote locations
Data Collection and Storage • Space Probes collect data • Space probes send back thousands of pages of data • Large computers collect the data allowing scientists to analyze large amounts of information
Sample Collection • Astronauts and space probes have collected many soil and atmosphere samples • Some technology was developed to get soil samples on Earth (meteorite that hit Earth)
Computation • Space science requires complicated calculations • Such as figuring out the correct time to launch a rocket for it to reach the correct destination • Launch Window • Computer help scientists calculate this window
Measurements • Measurements are vital in space science • Telescopes and lasers are used to take measurements • Read Measurements on page 224 to see how lasers are used
Communication of Information • Space Probes use radio signals to send information back to Earth • Once information is received back on Earth, scientists want to share it with others around the world, so they developed the National Space Science Data Center Web Site • This a an archive of space mission data any one can use!
Space Spinoffs • Scientists in the space program have developed thousands of new technologies to use in space. • Many of the ideas have also proved useful for right here on Earth • Space Spinoff- an item that has uses on Earth but was originally developed for use in space • They are modified for easier use on Earth
Space Spinoffs • Check out page 228-229 for many space spinoffs!!!
Uses of Orbiting Satellites • Satellites are used for communications and for collecting weather data and other scientific data • Observation satellites are used for many purposes, including tracking weather systems, mapping Earth’s surface, and observing changes in Earth’s environment
Uses of Satellites Orbiting Earth • Satellites orbits are chosen based on the job they are to perform • Geostationary orbit- satellites that orbit Earth at the same rate Earth rotates and thus stays over the same place over Earth’s equator all of the time