This is where heat is transfered without the object moving.
Metals are good because:
CLOSE ATOMIC STRUCTURE
Particles Move in this transfer. Density changes. Heat = less dense because of more movement. At the top it cools, less energy, more dense and sinks. To Create a current. HAPPENS IN FLUIDS
HEAT IS TRANSFERRED AS INFA-RED RADIATION
All object's absorb and give off heat radiation.
Dark Surfaces = Absorb more, and emit more
Light Surfaces = Reflect more, and emit less.
Heat Loss In House
WE CAN SAVE HEAT (AND ENERGY) BY:
ROOF - roof insulation (20% reduction, expensive)
DOOR AND WINDOW - Draught Excluders (15% and Cheap, need fresh air still!)
WALLS - Wall insulation (35%, expensive)
WINDOWS - Double Glazing (10%, expensive)
FLOOR - Carpet (easy to install, expensive)
EACH OF THESE INSULATES THE HOUSE
Heat Insulation Design
These are designed to keep in heat, (OR KEEP OUT).
It uses VACUUMS. (STOP'S CONDUCTION, can't travel through Vacuum, STOP CONVECTION, No particles)
It uses Shiny Surfaces. (DOESN'T ABSORB HEAT IN FLASK, REFLECT'S BACK INWARDS).