Donate SIGN UP

Pedro22

1 to 2 of 2

Avatar Image
Pedro22
If a loud speaker produces sound by pushing air via its vibrating cone,then if the cone was made of material that aloud air to pass one way,wouldnt this create low pressure on one side and thus create...
Avatar Image
Pedro22
how does a combi boiler separate domestic hot tap water from central heating water?

1 to 2 of 2