Although DIY PCB making has made great strides since the early days of chemical etching, there’s one fly in the ointment: vias. These connect individual layers of the board with a conductive ...
This allows the copper that was once bonded to the PCB substrate to be rinsed away. It seems simple enough, but that overall reaction hides a lot of chemical complexity, and the details are worth ...
It may take several decades for PCB levels in fish to decline enough ... People can be exposed to the toxic chemical by eating fish in contaminated waterways. Overexposure to PCBs has been linked ...
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