It indicates an expandable section or menu, or sometimes previous / next navigation options. PNG is a popular graphic file format, perhaps second only to JPG today. It has a few advantages over ...

The Trovant stones of Romania, found in Costești, are remarkable for their ability to grow, move, and reproduce. Formed millions of years ago, these unique stones expand after rainfall due to a ...

Blue skies and soft, golden sand? We bet your daydream getaway contains one more thing, too: turquoise waters. "The reason the ocean is blue is due to the absorption and scattering of light," NASA ...

Different trace elements can produce other colors, allowing beryl to form semiprecious stones such as aquamarine. Minerals and gems are classified by their physical properties, including hardness ...

The Rolling Stones began calling themselves the "World's Greatest Rock & Roll Band" in the late Sixties. Few disputed the claim then, and few would dispute it now. The “bad boy” counterparts ...

The sector's Chinese players looked like much better bets that day. Several manufacturers in the sprawling Asian country reported significant jumps in deliveries. They weren't looking so hot next ...

I've been contributing to PCMag since 2011 in a variety of ways. My column, Get Organized, has been running on PCMag since 2012. It gives advice on how to manage all the devices, apps, digital ...

You’ve probably heard of painful kidney stones. Find out where else “stones” can appear in your body, and how to tell. Sudden, intense pain is the hallmark of a kidney stone. See pictures of ...

The Stone Age in Britain took place between around 15000BC to 2500BC. The Mesolithic period is known as the middle stone age. Stone Age people cut up their food with sharpened stones and cooked it ...

Today will be windy with some strong gusts. Cloudy this morning with a band of rain moving in from the west. This will clear to the east in the afternoon and sunny spells will develop from the ...

Hot stone massage is a form of therapeutic massage in which a practitioner places warm stones on a person’s body or uses them to apply pressure to specific points. Supporters of hot stone ...

Here you will find videos and activities about the Stone Age. Try them out, and then test your knowledge with a short quiz before exploring the rest of the collection. Narrator: Excuse me.