The Crystal Guardian is an optional boss in Hollow Knight, but defeating it and its "true form" rewards you with a precious Mask Shard. This guide covers how to find and defeat the Crystal Guardian, ...

Take the top path until you reach a lift. Ride it to the highest level, then continue to the right, and you’ll come to a room with a dark cluster of ground that rumbles when you walk over it. Jump and ...

Watch JJ and his friends help Santa deliver presents in a school bus. We know there is a lot of content on YouTube, and it can be hard to tell which is appropriate for your child. So, Parents' editors ...

Crystal engineering is the design of molecular solids with specific physical and chemical properties through an understanding and manipulation of intermolecular interactions. Engineering strategies ...

Liquid crystals are substances that flow like a liquid but maintain some of the ordered structure of crystals. Liquid-crystal molecules tend to be elongated and to orient in specific directions.