Sediments generated in wastewater treatment plants can be a safe and effective fertilizer, which - in the form of granules - can also support the cultivation of plants or be used as a soil-forming material, say the creators of the innovative technology developed at the Central Mining Institute (GIG) in Katowice.
You talked to a friend about a product yesterday, and today you see an ad for it on the Internet. Does this mean that the devices we surround ourselves with eavesdrop on our conversations in order to 'push' more products? According to experts, no. In an interview with PAP they explain that although the technology exists, for the time being there is no conclusive evidence that tech giants are spying on us for marketing purposes.