2017 may have been a rough year, but there were plenty of inventions, innovations, and gadgets that made the world just a slightly better place.
From global health to social justice to humanitarian aid, a slew of scientists, technologists, and activists came together this year to create impactful solutions to some of our most pressing problems.
In no particular order, here are 30 innovations that made a tangible difference in 2017. For even more inspiration, check out our list of incredible innovations from 2016. Read more…
1. The 20-cent paper toy that can help diagnose diseases
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