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Wearable keycard lets people open doors without lifting a finger

Weekly+Science+Matters+graphic%3A+Shows+how+researchers+have+built+electrically+conducting+nanofiber+yarns.
Weekly Science Matters graphic: Shows how researchers have built electrically conducting nanofiber yarns.

Weekly Science Matters graphic: Shows how researchers have built electrically conducting nanofiber yarns.

Weekly Science Matters graphic: Shows how researchers have built electrically conducting nanofiber yarns.

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Whether at home or at work, the wearable keycard allowed people to open doors with only a swipe of a shirt sleeve. It was made of what researchers and scientists are now calling “smart” fabric, which could be programmed with the wearer’s identity.

According to nbcnews.com, these patches of smart fabric could be programmed using a magnet to create a digital password. The passwords could then be read by a magnetometer, a sensor that could detect magnetic fields.

Smart fabric was less expensive than traditional keycards, which used radio-frequency identification (RFID) chips to keep passwords. According to nbcnews.com, RFID readers were hundreds of dollars, while magnetometers could sell for less than a dollar.

Keycards worn on clothing could become particularly useful in hotels. According to capterra.com, it could provide increased security and prevent hotel break-ins. Also, guests would not get locked out of their rooms because they were always carrying their keycard on their arm.

Wearable technology was a fast growing industry. According to wired.com, it was estimated to grow from 100,000 units shipped in 2014 to 26 million units shipped in 2016.

The wearable keycard could be carried around everywhere by using smart fabric, and was an advancement to the conventional key.

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Wearable keycard lets people open doors without lifting a finger