A tithe barn was a type of barn used in the Middle Ages for storing the tithes - a tenth of the farm's produce which had to be given freely to the church.
There are many surviving examples of medieval tithe barns in England:
There are still many examples of tithe barns around England.
... the splitting of water, leading to a net production of O2, ATP, and NADPH with the consumption of solar photons and water.
The Calvin cycle
The Calvin cycle ...