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Now, smart pen that vibrates when you make spelling error

Last Updated: Sunday, July 14, 2013, 17:59

Lernstift is a regular pen with real ink, but inside is a special motion sensor and a small battery-powered Linux computer with a WiFi chip.

Now, smart pen that alerts you about grammar mistake

Last Updated: Tuesday, February 05, 2013, 15:48

A German company has designed a vibrating pen that is capable of picking errors in spelling or letter formation in real-time, by delivering a warning vibration to the writer`s hand.