Author:Ferreira, T.M; Billingham, P.ADate:1973The difference between sound and noise varies from one human being to another. Noise, then, is simply unwanted sound and to understand how it can be combatted we must know more about its nature. A guide of acceptable levels of noise are investigated.Read more
Author:Ferreira, TDate:1979Home owners often complain that traffic noise disturbs their indoor peace and quiet. It is difficult, expensive and probably unnecessary to make the whole house soundproof. To appreciate and apply the practical tips that follow later, it is ...Read more
Author:Lotz, F.J; Billingham, P.ADate:1974Too many people need to switch on the air-conditioning every time the sun comes up and light a fire as soon as it does down again. The sun is a wonderful source of energy that comes free of charge to all of us.Read more