The mystery of the whirly tube’s missing fundamental mode [study]

The musical instrument shown above is known by various names e.g. the whirly tube, the corrugaphone, the bloogle resonator, the voice of the dragon, the hummer, and even, according to American composer (and parodist) Peter Schickele the “Lasso d’Amore”. For acousticians, it’s noteworthy because the fundamental acoustic mode, that’s to say the note that one […]

Tobacco Pipes as Dry Powder Asthma Inhalers – a feasibility study

In the absence of a purpose-made dry powder inhaler device (e.g. Spinhaler®) could asthma sufferers use a pipe? Researchers Tan Suwandecha, Kirksak Assawadarakorn and Teerapol Srichana of the Drug Delivery System Excellence Center and Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Thailand, undertook a study in 2012 to assess the […]