The ceramic produced in Prof. Igor Lubomirsky's lab at the Weizmann Institute of Science seemed too good to be true. It belongs to a class of materials that are the backbone of many essential technologies but that unfortunately also create an environmental problem because they usually contain lead, which is highly toxic.
I thought this was minor because lead had already been removed from electronic PCBs. But apparently all piezo devices from injet printers to phone camera lenses use lead.
This is big.