Heat source for a hot-air balloon is a high-output burner fed by liquid propane which passes through a vaporising coil prior to combustion. Flow is controlled by an on/off valve referred to as a blast valve. Most balloons have two types of burners incorporated into them. They have main burners and also a 'whisper' system which is quieter than the m... Found on http://www.encyclo.co.uk/local/20160
Type: Term Pronunciation: bern′erz Definitions: 1. Brief episodes of upper extremity burning, dysesthesias, and weakness experienced mainly by young male athletes engaged in contact sports (football and wrestling); due to transient injury to the upper trunk of the brachial plexus caused by abrupt, forceful depression of the shoulder. Synonyms... Found on http://www.medilexicon.com/medicaldictionary.php?t=12874