[OC] They used to make glass with uranium, and I am having fun

This is how a piston engine work in an aircraft

Running Owl

Star apple parer and slicer, 1871. One of three known to exist.

Aircraft covered in ash at Catania airport after Etna volcano

Friend of mine caught this on camera during a lightning storm

finding natural sapphire,red ziron gemstones in river

Pipe end closing machine

Insane footage of a pair of Killer Whales hunting a Humpback

Interesting how I’m wearing this but still haven’t had any

Adding mommy milkers to the list of interesting things

Eruption [46]