Quagmire
This an interesting thread.
I will begin by stating the premise of Veda (and I know that premise does not fit the scientific methodology).
Richo akshare parame vyoman yasmin deva adhi vishve nisheduh,
Yastanna veda kim richa karishyatiya it tad vidus ta ime samasate.
(Rk Veda, 1.164.39)
The Veda (knowledge) reside in the transcendental field or
akshara, of the highest (
parame) etheral Being (
vyoman) in which reside all the
adhi vishve deva's (or impulses of creative intelligence, the laws of Nature), responsible for the whole manifest universe.
He whose awareness is not open (na veda) to this field, what can the verses accomplish for him? Those who know this level of reality are established in evenness (samasate or rest contented) , in That (
Tat or Bhuma, fullness-wholeness of life)."
....................
I have not seen anything of sensual level physical science in Veda, which has the purpose of indicating that which is not sensually available. The physical sciences and also social subjects were dealt in
Vedangas.
But Veda throws up some astounding questions that force us to re-think our sensual view of the universe. We can discuss some of those later. Here, I show an example of the difference between Veda and its commentary through use of knowledge in Vedangas.
ṛg ved 1.50.4 says the following:
O' surya you are the ferrier, object of all sight and the creator of light. You shine illumining all.
Sāyaṇācārya, a commentator in 1300AD, offers the following commentary:
tatha cha smaryate yojanānām sahasre dve dve shate
dve cha yojane ekema nimiṣārdhena kramamāna
Thus it is to be remembered , you (O' Sun)
who traverses 2202 yojana-s in one half nimeṣa ---
A yojana is ~ 9 miles. A nimeṣa is a moment, a twinkling of the eye. This nimeṣa is about 0.21333 seconds. So in 1/2 a nimeṣa (0.10667 seconds) the sun (through its light), travels 2202 yojana-s or roughly 19,818 miles ( 9 miles X 2202 yojana-s),
which means 185,787.94 miles per second. Though the above calculation is not part of Veda, yet SAyAnacArya, the commentator, got this value in 1300AD. This matches closely the value of speed of light calculated much later.
Many other examples of Physical science applications can be seen, although the references are not scientifically rigorous. But that was the hallmark of Indian scripture -- the individual name was to be effaced and not highlighted, the ego was to be mutiliated and not nurtured.
A source of getting more information can be found at:
Hindu Achievements In Exact Science : Kumar Sarkar.B : Free Download & Streaming : Internet Archive