Each type of firefly has its own flashing code. This helps males and females find mates of the same species.

每一种萤火虫都有自己的发光代码，这样可以帮助它们在同类中求偶。

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Input the established Code, then presses "b" key, the green light will flash for 5 seconds, during the flashing, turn the handwheel clockwise to open the Safe.

输入所设定的密码，然后按下“B”键，绿灯亮5秒，在绿灯亮时，顺时针转动手轮打开箱门。

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Among the cool new features, iPhone 5 will come with a new Maps app with Siri-powered turn-by-turn directions and a Passport app that will store digital versions of your affinity cards, boarding passes, tickets, coupons and, eventually credit and debit cards, so you can get on a plane or into a stadium or pay for a Starbucks coffee by flashing a bar code on the phone.

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The concept is certainly familiar, and functions in much the same way as a QR code, generating flashing light that's invisible to the human eye instead of a cumbersome 2D square.

ENGADGET: NewsFlash uses high-frequency light to transmit data from iPad to smartphone, we go hands-on (video)