12 of the rarest gems in the world
10 amazing natural phenomena
Fulgurite: when lightning strikes the sand
Fulgurite: when lightning strikes the sand
Fulgurite: when lightning strikes the sand
In the rare cases when an electric bolt of lightning strikes the sand or soil, the sudden heat causes the sand to sinter into full glass tubes of...
12 of the rarest gems in the world
12 of the rarest gems in the world
Today, there are about 200 varieties of natural gemstones in the world. Along with precious stones (natural diamonds, emeralds, rubies, sapphires and...
10 amazing natural phenomena
10 amazing natural phenomena
We admire nature and draw inspiration from it, even when we don't fully understand it. For example, our ancestors took lightning strikes and...