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Why we slip on ice: Physicists challenge centuries-old assumptions

For over a hundred years, schoolchildren around the world have learned that ice melts when pressure and friction are applied. When you step out onto an icy pavement in winter, you can slip up because of the pressure exerted by your body weight through the sole of your...

Amazon’s Starlink rival lands first major airline deal

JetBlue Airways will become the first airline to use Amazon’s Project Kuiper satellite network to power its in-flight Wi‑Fi service, the companies announced Wednesday, as the online retail giant tries to challenge the dominance of Elon Musk’s Starlink. Go...