Posted 2 years ago by boyt in category: interesting   Comments (0)

Posted 2 years ago by Grandpa in category: interesting   Comments (0)

Apparently when stirring hot milk the small air bubbles gets divided in to even smaller ones. Therefore sound travels more times between air and hot milk, in every transition the frequency of the sound gets broadened. The remaining high frequency gets abs

Posted 16 years ago by boyt in category: interesting   Comments (0)

Posted 16 years ago by boyt in category: interesting   Comments (0)

The Hazards of Electricity

Posted 10 years ago by andrej in category: interesting   Comments (0)