A glass bottle would sink instead of floating if there was no air inside of it
'Earls and barons are not to be fined except by their peers, and only in accordance with the nature of the offence'.
Clause 22: Nullus clericus amercietur de laico tenemento suo, nisi secundum modum aliorum praedictorum, et non secundum quantitatem beneficii sui ecclesiastici.
'No clergyman is to be fined on his lay tenement, except in accordance with the nature of his offence, in the way of others mentioned in previously, and not in accordance with the size of his ecclesiastical benefice'.
The Americans won such an overwhelming victory because George Washington lead them to Trenton during the night to surprise attack the Hessians. The Hessians didn't even think the Americans were camped near them at all.