Technology

All the latest news stories about technology, from today's life-changing innovations to tomorrow's cutting-edge fantasies—and how they're affecting the business world
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.
Musk Says Twitter Is Losing Cash Because Advertising Is Down
Elon Musk says Twitter is still losing cash because advertising has dropped by half. In a reply to a tweet offering business advice, Musk tweeted Saturday, “We’re still negative cash flow, due to (about a) 50% drop in advertising revenue plus heavy debt load.”
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