Many parameters a smartphone accidentially measures are useful in monitoring the environment. We have recently discussed, how air pollution with particulate dust can be monitored with an easy ad on […]
iSpex is a plastic contraption that can be clipped on top of a smartphone’s camera. In this simple slit spectrograph light is defracted and polarized by shining through birefringent plastic […]
When photons, the particles of light, hit the chip of a smartphone’s camera, they excite electrons on the chip’s surface and change the conductivity or even generate voltage within the […]