Start-up Nation: Israel leads in tech innovation
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It's dubbed the Start-up Nation. Israel is the world's biggest investor in R&D, and its tech sector is flourishing. We report on the development from Tel Aviv. Then, we move to Poland, where a Rover Competition pits the best in exploratory robots against each other. Finally, we test the Qrokee, a low-tech gadget that will turn anyone into the best sketcher and painter on the planet.