Pitch

Pitch

Pitch is a black substance that is viscous and elastic. It is classified as an viscoelastic polymer.  Pitch was used to seal up wooden ships, seal containers of wine for preservation, water proofing/sealing of wooden containers, making torches, and polishing mirrors and optical lenses.  You might have head the term “pitch-black”.   This makes sense since it is a very black substance.

Pitch Drop Experiment

There are a number of long on-going experiments to measure the flow of pitch. In fact, you can view (via webcam) a container of pitch drip due to gravity (the 10th drop) which will happen in around 8 years of so (as of today).  After all, we can’t rush cool experiments, now can we?

http://www.thetenthwatch.com/