Internet retailer Amazon introduced two new Echo-related products yesterday: the $130 Amazon Tap — a smaller, portable version of the Echo; and the $90 Echo Dot — a hockey puck-size version of Echo, minus the powerful speaker. As is the case with the newly popular Echo, users interact with both devices via the Alexa voice service. Amazon Tap features a rechargeable battery and uses Bluetooth and Wi-Fi to connect with mobile devices and the Internet. The Dot, which connects via wire or Bluetooth, is designed to provide Alexa for existing speaker systems. Continue reading Amazon Announces Alexa Voice-Controlled Household Devices

A group of scientists at Stanford University has developed a sustainable, high performing aluminum battery that is supposedly safer and less expensive to produce than the alkaline and lithium-ion batteries commonly used today. Chemistry professor Hongjie Dai and his Stanford colleagues claim that with improvements to cathode material, lithium-ion batteries have the potential to be of commercial use to power devices such as smartphones and other widespread battery enabled products.  Continue reading Scientists Develop Aluminum-Ion Battery for Commercial Use