Plato made the solids, and five were gifted to the mathematicians. But in secret Plato forged a sixth solid to rule over all the others.
The Six Platonic Solids [Explained]

seen from Spain
seen from China
seen from Georgia
seen from United States

seen from France

seen from France
seen from T1

seen from Spain

seen from United States
seen from United States

seen from Malaysia

seen from Brazil

seen from T1
seen from United States
seen from Finland
seen from Spain
seen from T1
seen from Finland
seen from United States
seen from China
Plato made the solids, and five were gifted to the mathematicians. But in secret Plato forged a sixth solid to rule over all the others.
The Six Platonic Solids [Explained]
The Hubble length is about 1.9 meters lying down; Edwin Hubble was a tall guy.
Physical Quantities [Explained]