Red dot sights have become very popular on rifles, pistols, and shotguns. But red dot sights have not been around all that long. In 1974, Aimpoint introduced the first red dot sight and their ...

Early red-dots were big and bulky and because they mounted on Weaver hardware ... I’ll graduate them to open sights and then magnified optics. But red-dot sights are an important introductory sight ...

A medical expert has shared a number of early warning signs that may suggest a brain tumour, encouraging people who spot these 'red flags' not to wait to consult their GP. Today (March 28 ...

It's also revealed a few surprises. One of these is the appearance of small, highly redshifted objects nicknamed "little red dots (LRDs)." We aren't entirely sure what they are, but a new study ...