Although now familiar tools used during power outages and camping trips, personal flashlights were revolutionary in the early twentieth century. The invention of the dry cell battery in 1896 enabled the first non-combustible lighting devices, allowing for safer handheld options than kerosene and oil lamps, candles, and torches, or other instruments previously powered by liquid...

The first solar powered StarSight virtual utility poles were installed in Istanbul, Turkey four months ago. The poles will provide a communication and emergency network in case of a large disaster (such as an earthquake) with a full Wi-Fi CCTV network attached to a lamppost. The first five poles include internet access, one mobile unit...