Unit c - 1.1 heat history
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Transcript of Unit c - 1.1 heat history
Heat and Temperature
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
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
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
7000 B.C.
Humans create Fire and begin to use it
Heat Technology Time Line
100 B.C.
Romans develop first central heating
Heat moves from one source to different areas of a building
1200 A.D
Chimneys first appear in Europe
1300s
Fireplaces with chimneys are built into the walls of buildings
1700s
Cast-Iron stoves heat rooms evenly; heat does not escape up a chimney
Late 1700s
Central heating reappears --- Using Coal Now
1800s
Forced-Air heating
1906
Electric Heaters
Page 184 #1-3
Check and Reflect
heat tech.notebook
Heat Technologies in our Life
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!!