› added 12 years ago
118
TIL: The densest wood in the world Lignum Vitae is also self lubricating, it’s been used for hundreds of years on ships, and was used for the main shaft bearings on the first Nuclear Submarine in 1955.
› added 12 years ago
118
TIL: The densest wood in the world Lignum Vitae is also self lubricating, it’s been used for hundreds of years on ships, and was used for the main shaft bearings on the first Nuclear Submarine in 1955.