Show balloon stays in in air A balloon that will stay in ili tile tho nir for weeks at a time fline tins has been invented by at 61 luceen rodin bodin of franco france bodin clakins that tant lila ills new levice precludes tile tho necessity of having to release alt all tile the gas gaa from tho the bog bag in order to regu late its altitude lle besides sides tho balloons ordinary din tiry gas bug lie with hydrogen not t clent to support it alone tile tho proposed cruft craft will carry nn an auxiliary compartment llred filled with air to supply buoyancy tile the pilot can regulate hla his attitude altitude by heating or cooling tile lie air thus thua obviating the necessity of releasing any of the hydrogen chicago dally daily news |