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Speed of Light in Rigveda

Bhatt

New Member
The most well-known source of light is the Sun, or Surya Dev in Hinduism. Suryadev has been worshiped in India since time immemorial following the traditional way of respecting and worshipping important forms of nature. Suryadev is a part of many festivals, including Pongal or Makar Sankranti, Chattha Puja, etc. The Surya Namaskara is a complete exercise procedure that is part of the daily-morning routine of many Indian homes. Will surely put up a post on this beautiful Yogic exercise soon...

It is a well-known fact that light travels at a phenomenal speed of 3 x 10^8 metres/sec. This value is etched into the memory of students in their early years in school, and is useful is solving umpteen number of problems where the constant 'c' is used to denote the Speed of light.

This value of the Speed of Light was established by the experiment conducted by Michelson and Morley, celebrated American Physicists in the 19th Century.

But did you know that a very close value to the calculated one was determined in the 14th Century AD in India? The below mantra is part of the Rig Veda:

Taranivishwadarshato Jyotishkudasi Surya vishamabhsi Rochanam.

Saint Sayanacharya (c.1300's), in his commentary on Rigveda gave the following comment:

Thatha Cha Samsarthe Yojananam Saharsam Dwe Dwe Shate Dwe Cha Yojane
Ekena Nimishardhana Kramamana Namosotute

The above translates into:

"It is to be noted that the Light due to the Sun travels 2202 Yojanas in half a Nimesha"

Now for the calculation. Converting the units used in ancient India to those used presently :

1 Yojana = 9 miles

2202 Yojanas = 19818 miles

1 nimesha = 0.21333 seconds

1/2 nimesha = 0.10665 seconds


Speed = distance / time = 19818 / 0.10665 = 185822 miles per second = 299044 kms per second.

The value calculated by Michelson and Morley was approximated to 186000 miles per second, which is used these days along with the more common 3 x 10^8 metres per second.

It must also be noted that Sayanacharya was only commenting on the Rig Vedic text. It is possible that even earlier interpretations and findings existed, but have not stood the tests of time.

Thus, our Ancient Vedic Indians had established the Speed of Light much before scientists in other parts of the world ! This again proves the Scientific knowledge of Ancient India. Very Enlightening, isn't it?

Bhatt
 
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kaisersose

Active Member
Do you have a direct Rig-Veda reference to computations of the speed of light?

By the time of Varahamihira (6th century AD), there was considerable interaction between Greek and India. There is an alleged quote by Varahamhira where he appreciates Greeks for (though foreign/impure), their knowledge of science is superior to ours.

I have seen some attempts to prove Indians knew square roots, etc., by 500 BC, but I would love to see some evidence.

Thanks,
 

Bhatt

New Member
I have quoted the Mantra of Rigveda....

Taranivishwadarshato Jyotishkudasi Surya vishamabhsi Rochanam

I have the original sanskrit version as scanned copy.

Bhatt
 

kaisersose

Active Member
I have quoted the Mantra of Rigveda....

Taranivishwadarshato Jyotishkudasi Surya vishamabhsi Rochanam

I have the original sanskrit version as scanned copy.

Bhatt

Thanks. That is Rig-Veda 1.50.4 which praises Surya as swift and great, without any numbers. So Sayana got his information from a different source.

I agree, it is interesting to know they were aware of this information 600 years ago. The Surya-Siddhanta has computations for determining Eclipse times (I have verified this myself) which are decently accurate.
 

GURSIKH

chardi kla
1 nimesha = 0.21333 seconds

1/2 nimesha = 0.10665 seconds


Speed = distance / time = 19818 / 0.10665 = 185822 miles per second = 299044 kms per second.

The value calculated by Michelson and Morley was approximated to 186000 miles per second, which is used these days along with the more common 3 x 10^8 metres per second.


Bhatt

Hi Bhatt ;)


can you show me source mentioning
1 nimesha = .2133 sec :cool: :D
 

Bhatt

New Member
You might have heard of kala kashta muhurtha
15 nimesa = 1 kastha
30kastha= 1 kala
30 kala = 1 muhurta
30 muhurta = 1 day-and-night

A nimesa is therefore equal to 16/75 seconds.


Bhatt
 
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