Six Technologies That Hit Their Tipping Points in 2015

I really tracked the innovation happening throughout the last year - read patents (1000s in number, articles etc. What I really love is how we are moving toward a world powered by clean energy sources. And Google and Elon Musk are playing a great role in that. The project Makani of Google and Musk's Gigafactory was among the best thing I have ever seen happening in my entire life.