Using jets of air to teach fluid dynamics 2011 Phys. Educ. 46 373 (http://iopscience.iop.org/0031-9120/46/4/F02) A hydrostatic paradox revisited 2012 Phys. Educ. 47 152 (http://iopscience.iop.org/0031-9120/47/2/152) Experiments demonstrate clouds forming in the classroom 2012 Phys. Educ. 47 8 (http://iopscience.iop.org/0031-9120/47/1/F01) Hot brakes and energy-related concepts: is energy lost? 2012 Phys. Educ. 47 38 (http://iopscience.iop.org/0031-9120/47/1/38) Simple photometry 2012 Phys. Educ. 47 61 (http://iopscience.iop.org/0031-9120/47/1/61) Think global, act local—a power generation case study 2012 Phys. Educ. 47 92 (http://iopscience.iop.org/0031-9120/47/1/92) Acceleration and rotation in a pendulum ride, measured using an iPhone 4 2011 Phys. Educ. 46 676 (http://iopscience.iop.org/0031-9120/46/6/001) Using an infrared thermometer for solar pyranometry 2011 Phys. Educ. 46 696 (http://iopscience.iop.org/0031-9120/46/6/006) Number 1, January 2011 (1-124) The infrared thermometer in school science: teaching physics with modern technologies Raimund Girwidz and Gren Ireson doi:10.1088/0031-9120/46/1/008 Experiments with a varicap Yaakov Kraftmakher doi:10.1088/0031-9120/46/1/002 41 A variant of Young's double slit experiment for educational purposes François Hénault and Alain Spang doi:10.1088/0031-9120/46/1/004 Number 2, March 2011 (125-236) Forces acting on a ball in an air jet T López-Arias, L M Gratton, G Zendri and S Oss doi:10.1088/0031-9120/46/2/001 Paramagnetic and diamagnetic materials Frank Thompson doi:10.1088/0031-9120/46/3/013 More fun and curiosity with magnetic guns in the classroom O Chittasirinuwat, T Kruatong and B Paosawatyanyong doi:10.1088/0031-9120/46/3/011 A simple method to measure the refractive index of a liquid Paul Gluck doi:10.1088/0031-9120/46/3/F06 A mobile phone Faraday cage M M J French doi:10.1088/0031-9120/46/3/005 Seeing the invisible with schlieren imaging Ville Lekholm, Göran Rämme and Greger Thornell doi:10.1088/0031-9120/46/3/006