Babbel Takes the Mic: AI Voice Coach Aims to Crush Speaking Anxiety and Duolingo’s Lead

Julie Hansen of Babbel unveils Babbel Speak, an AI voice trainer tackling language fear head-on, as Babbel eyes IPO and takes on AirPods’ translation tech.
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Can NYC Finally Cool Its Subway?
Why is the NYC subway platform so hot? One rider built his own sensor network to find out. We explore the geothermal fix the MTA is piloting right now.
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