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 Lernstift is a regular pen with real ink but inside it, is a special motion sensor and a small battery-powered Linux computer with a Wi-Fi chip. These parts allow the pen to recognize specific movements, letter shapes and know a wide assortment of words. If it senses bad letter formation or messy handwriting, it will vibrate, 'ABC News' reported.

This huge amount has been accidentally, for a brief moment, the PayPal account of Chris Reynolds, a man 56 years old from Pennsylvania, using the payment service online to buy and sell car parts and other items . Reynolds realized that he had been temporarily "quatrilionário" when received a monthly statement from PayPal, saying that the balance of your account that month was-take a deep breath:

Back in June, Sony revealed its SmartWatch 2 SW2, and though it did not reveal when the watch would be hitting shelves, word had initially surfaced that the device would be arriving on July 15. That turned out to not be the case, however, and it has been revealed that the actual launch date will be in September, giving us at least another month of waiting.

While most people would think that flagship devices are the most popular, that isn’t always the case. Sometimes, it’s the budget devices that top the list, as is the case with Windows Phone . According to Windows Phone advertising company AdDuplex, the Nokia Lumia 520 is the world’s most popular Windows Phone handset.Specifically, the Lumia 520

A new polymer that changes shape and returns to its previous form, depending on the temperature could use ambient heat to drive tiny motors. The new shape-shifting polymer could be used as window blinds that open and close automatically without a battery or any other power source. Previous shape memory polymers lose their ability to “remember” their original shape after only a few cycles.