Download - Unit c - 1.1 heat history
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Heat and Temperature
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Being warm has always been a critical aspect of our survival
Over human history, heat was not understood.
It was briefly thought to be a fluid, but was disproved
History of Heat
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Further study into heat showed that it was a form of energy called THERMAL.
This energy is the cause of warmth and generation of heat
Heat is actually Energy
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Based on where you live your basic needs will be met in different ways. Lets looks at Canada!
We use heat for our homes, our survival, to heat our sports arenas, our schools, and our food.
Humans Use Heat
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7000 B.C.
Humans create Fire and begin to use it
Heat Technology Time Line
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100 B.C.
Romans develop first central heating
Heat moves from one source to different areas of a building
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1200 A.D
Chimneys first appear in Europe
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1300s
Fireplaces with chimneys are built into the walls of buildings
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1700s
Cast-Iron stoves heat rooms evenly; heat does not escape up a chimney
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Late 1700s
Central heating reappears --- Using Coal Now
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1800s
Forced-Air heating
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1906
Electric Heaters
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Page 184 #1-3
Check and Reflect
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heat tech.notebook
Heat Technologies in our Life
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From our list pick 3 heat technologies and think how your life would be affected if they never existed.
FOCUS QUESTIONS
How would life be different without them? How would you perform the job they do? What would an alternative device for it be?
Hand in PARAGRAPHS to me when done!!