The question
Is more or less the same amount of water cycling through Earth's sky every year?
Instrument 01Text meets world
Rain, In Measure
Water sent down in due measure.
2source verses
Signs instrument
The evidence
2 source verses, an interactive observation, and three deliberately separated readings.
The boundary
A resonance is not a scientific prediction. These studies invite reflection; they do not turn scripture into a laboratory manual.
Before the instrumentGuess first
Is more or less the same amount of water cycling through Earth's sky every year?
Hold your guess. Then run the experiment below.The loop's total never changes: the same measure returns every year. The aquifer at left is different: it took ages to fill and extraction alone can empty it, no matter how many laps the cycle runs.
The verses
Az-Zukhruf 43:11✦ exploreread وَٱلَّذِى نَزَّلَ مِنَ ٱلسَّمَآءِ مَآءًۢ بِقَدَرٍ فَأَنشَرْنَا بِهِۦ بَلْدَةً مَّيْتًا كَذَٰلِكَ تُخْرَجُونَ
And who sends down rain from the sky in measured amounts, and We revive thereby a dead land - thus will you be brought forth -
Al-Muminoon 23:18✦ exploreread وَأَنزَلْنَا مِنَ ٱلسَّمَآءِ مَآءًۢ بِقَدَرٍ فَأَسْكَنَّٰهُ فِى ٱلْأَرْضِ وَإِنَّا عَلَىٰ ذَهَابٍۭ بِهِۦ لَقَٰدِرُونَ
And We have sent down rain from the sky in a measured amount and settled it in the earth. And indeed, We are Able to take it away.
What the text says
The text: He sends down from the sky water in due measure (biqadar), and We settled it in the earth, and We are able to take it away.
What classical readers understood
The measure was read as providence: neither flood of ruin nor total drought, but apportionment.
What science sees
The hydrological cycle is a closed budget: roughly 505,000 cubic kilometers evaporate and fall again each year, redistributed but conserved; groundwater is precisely rain 'settled in the earth,' and aquifers can be lost.