Helmet with OnStar, NASA’s 3D-printed engine and more

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Today on In Case You Missed It: A helmet cam for motorcyclists and has an emergency alert system that kicks in when a crash is detected. NASA 3D-printed parts for an engine that has withstand 6,000 degrees Fahrenheit. And the White House wants people to see the glory of its decorations with a new virtual reality tour of the annual Christmas display.
If you can only read one story, catch up on the AirBnB bust of a host using hidden cameras.
Please share any interesting science or tech videos with us! Just tweet us with the #ICYMI hashtag to @mskerryd. And we know we spent way too much effort making this holiday special; please enjoy the specials for robots, health and transportation, coming at you all next week.
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Technology isn't all about bits and processors. It's the car with no driver, human organs printed in a lab and leisurely flights into space. It's the future and Engadget is here to tell you all about it.
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