Show bottle of liquid air needed in fans fais shop scientists have discovered that a piece of metal cooled to extremely low biow temperatures becomes almost a perfect conductor an english experimenter alan J breunner Rr Br einner has nn bounced to tits his radio society that when the antenna coll coil of a set Is immersed in liquid air while the strength of the signal bagnal Is not increased the selectivity becomes remarkably high saor no nc DX fans workshop will be complete without a thermos bottle of liquid air iladio news |