This was a ceremonial sword as opposed to the war sword Excalibur. Sometimes modern authors use Clarent (or another name) as the name of the sword in the stone, but this is not in the original. Not to be confused with Excalibur in the Rust.his origin for Excalibur was used by Malory in Le Morte D Arthur. Malory's version of the Arthurian stories, written when the Middle Ages were almost over, would become the best-known version to English-speaking readers.
The relationship of a gas with pressure and volume was developed by the scientist Robert Boyle at around 1660 and is known as Boyleâs Law.
This link takes you to a discussion of the experiment Boyle performed, the data he gathered and his picture. His law gives the relationship between pressure and volume if temperature and amount are held constant. If the volume of a container is increased, the pressure decreases. If the volume of a container is decreased, the pressure increases.