Qur’an 16:48 and Modern Science
Qur'an 16:48 and Modern Science:
“Have they not considered how the shadows of everything Allah has created incline to the right and the left, prostrating to Allah in humility?”
This verse literally describes a daily physical phenomenon: the movement of shadows across the Earth’s surface. Modern astronomy, geometry, and optics provided a detailed explanation of this process.
When examined carefully, the wording corresponds totally with how shadows behave in reality
1. The Physics of Shadow Formation
A shadow forms when an opaque object blocks light from a source. In the case of Earth, the primary light source is the Sun.
The position and length of a shadow depend on:
the height of the object
the angle of incoming sunlight
the position of the observer
When the Sun moves across the sky, the angle θ constantly changes, causing the shadow to continuously shift position.
This stuff produces the observable phenomenon mentioned in the verse: shadows inclining from one side to another.
2. Earth’s Rotation and Apparent Solar Motion
Modern astronomy explains shadow movement through Earth’s rotation:
The Earth rotates once every 24 hours, producing the apparent daily movement of the Sun across the sky. Because the Sun appears to travel from east to west:
Morning → shadows extend westward
Noon → shadows become shortest
Afternoon → shadows extend eastward
Thus, the shadow moves from one side to the other during the day.
Scientists have long described this phenomenon. Like Galileo explained this stuff like this:
“The daily turning of the Earth causes the Sun to appear to move across the sky, and the shadows of bodies upon the ground change their position accordingly.”
Isaac Newton also explained this stuff
3. The Arc Like Motion of Shadows
Shadows do not simply move in a straight line. Because the Earth is spherical and the Sun follows a curved path across the sky, shadows trace curved arcs across surfaces.
If one tracks the tip of a shadow throughout the day, it forms a continuous curved trajectory. This was studied using instruments called gnomons (vertical sticks etc used to track shadows).
Even Al-Biruni analyzed this motion in his astronomical studies stuff.
He observed smth like this:
the shadow begins long in the morning
gradually shortens
then lengthens in the opposite direction
This arc like movement corresponds closely to the Quranic expression that shadows “incline to the right and the left.”
4. Linguistic Precision of the Verse
The verse uses the Arabic expression describing shadows tilting or leaning toward both sides.
“Ibn ʿAbbās said: it sways. The fay’ is the shadow after noon because it inclines from the side it was on to the opposite side.”
Ibn ʿAdil: “من كل شيء له ظل من جبل وشجر وبناء وجسم قائم”
everything with a shadow even a mountain
This wording captures several aspects of the phenomenon:
Continuous movement rather than a single direction
Alternating orientation across the day
Dependence on sunlight angle
Most Importantly, the verse refers to all created things, which reflects another physical reality: every object that blocks sunlight produces a shadow.
So the description applies universally to:
trees
buildings
mountains
animals
people
5. Shadows as a Universal Natural Sign
Historically the study of shadows played a major role in science.
This Verse is also a miracle of the Holy Quran no 'holy' book book has ever mentioned such accurate details about the shadow but the Holy Quran has and mentioning the perfect detail 1400 years ago is something else.
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