This water wheel is the most promising solution to ocean plastic (ScienceAlert)

A solar-powered water wheel has been put to work in Baltimore’s harbour collecting 23 metric tonnes of floating garbage every day.



A 30-year history of the future

MIT Media Lab founder Nicholas Negroponte takes you on a journey through the last 30 years of tech. The consummate predictor highlights interfaces and innovations he foresaw in the 1970s and 1980s that were scoffed at then but are ubiquitous today. And he leaves you with one last (absurd? brilliant?) prediction for the coming 30 years.