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 to the phone’s camera. But there are even more subtle ways by which users can help to research and monitor environmental conditions. Another example is […]

...(more)

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 small area arround the impact. Gamma rays which are often products of radioactive decay, are also electromagnetic waves, just like light, however much more energetic. […]

...(more)