in part 1, the eye reflection spectroscopy showed that a large range of wavelengths all the way from green to blue are being reflected. part…

this experiment did only yield limited success. photo of an eye seen trough the slit opening and the according spectroscopic view on the right side.…

see this instructables article for more info on how to revive an old Polaroid instant camera

modeling the phone case..

i packed 1kg sea salt between a net. after 4 weeks in a smokehouse, i got it back with a different color. turned out nicely…