Wat is het mooiste, soms. Weten of geloven?
Keuze:
'Een rustig voorbij drijvend cumulus wolkje weegt zoveel als 80 olifanten'
of
'Clouds can have a large range of mass per volume,
depending on how large and numerous the cloud droplets
or ice crystals are that are in them. However, they
do not really weigh anything, if by weighing you mean
putting them on a scale to weigh. Weight is defined
as the force of an object upwards as the result of
gravity. Since clouds, in a sense, defy gravity, they
do not have weight.

Clouds are less dense than dry air of the same volume.
That is why they do not fall from the sky. Upwards vertical
motions in the atmosphere also help to counteract
the weight of the droplets or ice crystals, helping to
hold them up (or make them rise even) in the atmosphere.'