If you kept yelling for 8 years, 7 months and 6 days, you would produce enough sound energy to heat up a cup of tea. Category: Fun FactsBy Chelva WellsJanuary 2, 2018 Author: Chelva Wells Post navigationPreviousPrevious post:Standard Bank welcomes new graduates for 2018NextNext post:Next PostRelated PostsNo titleDecember 11, 2018No titleDecember 4, 2018No titleNovember 30, 2018No titleNovember 28, 2018No titleNovember 26, 2018No titleNovember 19, 2018