The “Blue Bloods” fan base, which includes many Globe readers, has some grieving ahead of them, when the last episodes of the 14th season run on CBS in the fall. Despite lobbying by its stars ...

Quick. Take a look at your MP3 player. What colour is the indicator light? If it's orange or green, you're so 1990s. If it's bright blue, you're cool. Blue LEDs (light-emitting diodes), which now ...