When grapes are put in a microwave oven, especially when cut in two, their shape and material refract the waves in a way that eventually ionise the sodium and potassium content of the fruit and create plasma that ignites and takes fire. A popular science-fair/YouTube trick, Canadian scientists have since studied the phenomenon and reproduced it using artificial water beads. They note that the science behind it could serve as a base to develop wireless antennas and superresolution imaging. All thanks to someone who once wanted to eat warm grapes.⁠