physics - heat

1. Physics
heat
M. Akshaya Sree

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The ice blocks
out the chilling
wind. Second,
ice is good at
trapping heat.
We say that it is
a good
insulator. A
small igloo with
a candle inside,
or even just the
body warmth of
the inhabitants,
can stay
surprisingly
warm.

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Mud is a bad conductor of heat and
so is the air trapped in the thatch of
roof. Thus, in summer the heat from
outside does not flow in and, hence, it
keeps cool. Conversely, in winter the
heat from within does not flow out and
it keeps warm.
The concrete houses are somewhat
more conducting than mud
houses. Thus, the heat in summer
flows in and makes it
hot. Conversely, the heat from within
flows out in winter and keeps it cool.

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