General Knowledge

Saturn’s 3 main rings are generally only about 10 meters (33 feet) thick. Source

There’s a 3D-printed sundial that lets light through at the right angles to produce a digital clock shadow, which displays the current time in 20-minute increments from 10:00 until 16:00. Also, the necessary files can be downloaded from Thingiverse so you can 3D-print your own sundial, if you have the materials to do so.Source

There’s a small wedding chapel in the Maldives that has a glass aisle so the bride and groom walk on water. Source

Artist Néstor Canavarro spends about 50 hours creating each of his hyper-realistic, colored pencil portraits of celebrities.Source

This is the entire observable universe squeezed into one image. Musician Pablo Carlos Budassi was drawing hexaflexagons for his son’s birthday party favors, when he got the idea to make a logarithmic view of the universe, which he created by using Photoshop to combine logarithmic maps from Princeton with NASA photos.Budassi’s illustration features our solar system at the very center, followed by “inner and outer planets, Kuiper belt, Oort cloud, Alpha Centauri, Perseus Arm, Milky Way galaxy, Andromeda galaxy, nearby galaxies, Cosmic Web, Cosmic microwave radiation, and Big Bang’s invisible plasma on the edge.“Source