1l of (4°C) water weighs 1kg.
1kg (of anything) is 1000g.
1g of water is 1cm³.
Stack 1000 1cm³ blocks to get a 10m high column.
This column exerts 100kPa of pressure on its base.
To heat it by 1°C requires 1kcal.
And 1N would accelerate it by 1m/s every second.

I had to google how many inches are in 7 feet.
And I think that's stupid.

Edit: Dear Americans; I require 7 feet in fathoms.
Edit: spelling/grammar

#Imperial #ImperialUnits #Metric #MetricSystem #America