000			00900nam a2200181 4500
001			00301337
003			PWmBRO
005			20180324010546.0
008			000000n 00000 eng u
245	0	0	_aBasic principles of thermal insulation.
260			_aSydney, New South Wales: _bBerwick Productions,,
300		1	_aVideocassette (VHS)(17 min.) : sd., col. 1/2 in.
500	0		_aThis short animated film is one a series dealing with the nature of heat and the means of controlling temperature by the use of insulation. In the film you will learn the basic principles of reflective and bulk insulation and this will be of assistance in understanding the need for insulation in our everyday life.
650			_aExterior walls--Thermal properties--Study and teaching.
650			_aSwellings--Insulation--Study and teaching.
650			_aInsulation (Heat)--Study and teaching.
942			_2ddc
999			_c39735 _d39735