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However, some researchers have argued that the term "optical illusion" should only be used for physical phenomena caused by light interacting ... a series of blue and purple dots.

the Echo Dot Kids is a great investment that comes in two adorable designs: an owl or a dragon. What's even better is it's currently discounted on Amazon for a limited time, so there's no better ...

The Amazon Echo Dot 4th Generation is still on sale, but the deal is for one specific color, and you have to dig a bit to ...

The James Webb Space Telescope (JWST) has caught yet another visual spectacle, depicting layers of interstellar material illuminated by a supernova in a phenomenon known as a thermal light echo.

1. Signal Activation: The blue lights are wired into the traffic signal system and turn on when the traffic light changes to ...

The Amazon Echo in twilight blue is down to $64.99 (unfortunately, the other colors of the Amazon Echo are not discounted at the moment). This is 35% off its list price of $99.99, allowing you to ...

It basically looks like a cross-section of the Dot. The Echo Dot also comes in three fairly muted colors (gray, white, and blue), but the Echo Pop is available in some, well, poppier colors ...

Today is Blue Monday, dubbed "the most depressing day of the year", so Liverpool BID Company has organised giveaways and entertainment to put a smile on everyone's face. Today there will be live ...

A popular pub on the edge of Yarm has been temporarily closed as it undergoes an investment - with “exciting plans” teased for its future. The Blue Bell, on Yarm Road, has long been a go-to ...

The playmaker had already been the subject of transfer rumours before it came to light his current club had been slapped with the heaviest of punishments - provisional relegation from Ligue 1 ...