The Rigveda stated that the earth was a ...globe suspended freely in space. The Vedic texts disclosed that the Sun held the earth and heavenly bodies in its orbit. The Shatapatha Brahmana, a treatise of untold antiquity, recognized and explained the fact that the earth was spherical.. Aryabhata explained the daily rising and setting of planets and stars in terms of the earth’s constant revolutionary motion. The Surya Siddhantha said that the earth, owing to its gravitational force draw all things to itself. In physics, the thinker Kanada, explained light and heat as different aspects of the same element, thus anticipating Clarke Maxwell's Electro-magnetic Theory, which unified different forms of radiant energy. Sankaracharya, in his Advaita thought expanded the concept of unity of matter and energy. Vacaspati recognized light as composed of minute particles emitted by substances, anticipating Newton’s Corpuscular Theory of Light and the later discovery of the Photon. In Botany, Sankara Mishra and Kanada have discussed the circulation of sap in the Plant and the Santiparva of Mahabharata has clearly stated that the plants develop on the strength of nutrients made through interaction of sunlight and materials obtained from the air and ground. Bhaskarcharya's concept of Differential Calculus preceded Newton by many centuries. His study of time identified Truti: The 3400th part of a second as the unit of time.

Anachronistic as this labyrinthine mythology may appear to the foreign mind, many of India's ancient theories about the universe are startlingly modem in scope and worthy of a people who are credited with the invention of the zero, as well as algebra and its application of astronomy and geometry; a people who so carefully observed the heavens that, in the opinion of Monier- Williams, they determined the moon's synodical revolution much more correctly than the Greeks." This notion of the sleeping and waking, or contracting and expanding, of the Life Force, so long a part of Hindu cosmology, has recently been expressed in relevant terms in an article written for a British scientific journal by Professor Fred Hoyle, Britain's foremost astronomer. " "Plainly, contemporary Western science's description of an astronomical universe of such vast magnitude that distances must be measured in terms as abstract as light-years is not new to Hinduism whose wise men, millennia ago, came up with the term kalpa to signify the inconceivable duration of the period elapsing between the beginning and end of a world system." "It is clear that Indian religious cosmology is sharply at variance with that inherited by Western peoples from the Semites. On the highest level, when stripped of mythological embroidery, Hinduism's conceptions of space, time and multiple universes approximate in range and abstraction the most advanced scientific thought."
"Hinduism created such arresting icons as the divine two-in-one embrace of Shiva and Shakti; or Shiva alone, half male, half female, or the two-sided figure of Hari-Hara, an expression of the seemingly "opposite" creative-destructive forces of Vishnu and Shiva embodied in one being

The Hindus attained a very high proficiency in arithmetic and algebra independently of any foreign influence." The romance of the composition of Lilavati - the standard Hindu textbook on Arithmetic by Bhaskaracharya - is very interesting and charming. It deals not only with the basic elements of the science of arithmetic but also with questions of interest, of barter, ofpermutatlOns and combinations, and of mensuration. Bhaskaracharya knew the law of gravitation. The Surya Siddhanta is based on a system of trigonometry. Professor Wallace says: "In fact it is founded on a geometrical theorem, which was not known to the geometricians of Europe before the time of Vieta, about two hundred years ago. And it employs the sine of arcs, a thing unknown to the Greeks." The 47th proposition of Book I of Euclid, which is ascribed to Pythagoras was known long ago to the Hindus and must have been learnt from them by Pythagoras.

I should here have described some Clocks and Time-keepers of great use, nay absolute necessity in these and many other Astronomical observations, but that I reserve them for some attempts that are hereafter to follow, about the various wayes I have tryed, not without good success of improving Clocks and Watches and adapting them for various uses, as for accurating Astronomy, completing the Tables of the fixt stars to Seconds, discovery of Longitude, regulating Navigation and Geography, detecting the properties and effects of motions for promoting secret and swift conveyance and correspondence, and many other considerable scrutinies of nature: And shall only for the present hint that I have in some of my foregoing observations discovered some new Motions even in the Earth it self, which perhaps were not dreamt of before, which I shall hereafter more at large describe, when further tryalls have more fully confirmed and compleated these beginnings. At which time also I shall explaine a Systeme of the World, differing in many particulars from any yet known, answering in all things to the common Rules of Mechanicall Motions: This depends upon three Suppositions. First, that all Cœlestial Bodies whatsoever, have an attraction or gravitating power towards their own Centers, whereby they attract not only their own parts, and keep them, from flying from them, as we may observe the Earth to do, but that they do also attract all the other Cœlestial Bodies that are within the sphere of their activity; and consequently that not only the Sun and the Moon have an influence upon the body and motion of the Earth, and the Earth upon them, but that Mercury also, Venus, Mars, Saturne, and Jupiter by their attractive powers, have a considerable influence upon its motion as in the same manner the corresponding attractive power of the Earth hath a considerable influence upon every one of their motions also. The second supposition is this, That all bodys whatsoever that are put into direct and simple motion, will so continue to move forward in a streight line, till they are by some other effectual powers deflected and bent into a Motion describing a Circle, Ellipsis, or some other more compounded Curve Line. The third supposition is, That these attractive powers are so much the more powerful in operating, by how much nearer the body wrought upon is to their own Centers. Now what these several degrees are I have not yet experimentally verified;—But these degrees and proportions of the power of attraction in the celestiall bodys and motions, were communicated to Mr. Newton by R. Hooke in the yeare 1678, by letters, as will plainely appear both by the coppys of the said letters, and the letters of Mr. Newton in answer to them, which are both in the custody of the said R. H., both which also were read before the Royall Society at their publique meeting, as appears by the Journall book of the said Society.—but it is a notion which if fully prosecuted as it ought to be, will mightily assist the astronomer to reduce all the Cœlestiall motions to a certaine rule, which I doubt will never be done true without it. He that understands the natures of the Circular Pendulum and Circular Motion, will easily understand the whole ground of this Principle, and will know where to find direction in nature for the true stating thereof. This I only hint at present to such as have ability and opportunity of prosecuting this Inquiry, and are not wanting of Industry for observing and calculating, wishing heartily such may be found, having my self many other things in hand which I would first compleat, and therefore cannot so well attend it. But this I durst promise the Undertaker, that he will find all the great Motions of the World to be influenced by this Principle, and that the true understanding thereof will be the true perfection of Astronomy.

From all the properties of man and of nature, from all the various branches of science, from all the deductions of human reason, the general corollary, admitted by Hindus, Arabs, and Tartars, by Persians, and by Chinese, is the supremacy of an all-creating and all-preserving spirit, infinitely wise, good, and powerful, but infinitely removed from the comprehension of his most exalted creatures; nor are there in any language (the ancient Hebrew always excepted) more pious and sublime addresses to the being of beings, more splendid enumerations of his attributes, or more beautiful descriptions of his visible works, than in Arabick, Persian, and Sanscrit, especially in the Koran, the introductions to the poems of Sadi', Niza'm'i and Firdaus'i, the four Védas, and many parts of the numerous Puránas: but supplication and praise would not satisfy the boundless imagination of the Vedánti and Sufi theologists, who blending uncertain metaphysicks with undoubted principles of religion, have presumed to reason confidently on the very nature and essence of the divine spirit, and asserted in a very remote age, what multitudes of Hindus and Muselmans assert... that all spirit is homogeneous, that the spirit of God is in kind the same with that of man, though differing from it infinitely in degree, and that, as material substance is mere illusion, there exists in this universe only one generick spiritual substance, the sole primary cause, efficient, substantial and formal of all secondary causes and of all appearances whatever, but endued in its highest degree, with a sublime providential wisdom, and proceeding by ways incomprehensible to the spirits which emane from it; an opinion which Gotama never taught, and which we have no authority to believe, but which, as it is grounded on the doctrine of an immaterial creator supremely wise, and a constant preserver supremely benevolent, differs as widely from the pantheism of Spinoza and Toland, as the affirmation of a proposition differs from the negation of it; though the last named professor of that insane philosophy had the baseness to conceal his meaning under the very words of Saint Paul, which are cited by Newton for a purpose totally different, and has even used a phrase, which occurs, indeed, in the Véda, but in a sense diametrically opposite to that, which he would have given it. The passage to which I allude is in a speech of to his son, where he says, "That spirit, from which these created beings proceed; through which having proceeded from it, they live; toward which they tend and in which they are ultimately absorbed, that spirit study to know; that spirit is the Great One."

Two thousand years before Pythagoras, philosophers in northern India had understood that gravitation held the solar system together, and that therefore the sun, the most massive object, had to be at its center.

Two systems of Hindu thought propound physical theories suggestively similar to those of Greece. Kanada, founder of the Vaisheshika philosophy, held that the world was composed of atoms as many in kind as the various elements. The Jains more nearly approximated to Democritus by teaching that all atoms were of the same kind, producing different effects by diverse modes of combination. Kanada believed light and heat to be varieties of the same substance; Udayana taught that all heat comes from the sun; and Vachaspati, like Newton, interpreted light as composed of minute particles emitted by substances and striking the eye.

In physics, the thinker Kanada, explained light and heat as different aspects of the same element, thus anticipating Clarke Maxwell's Electro-magnetic Theory, which unified different forms of radiant energy. Sankaracharya, in his Advaita thought expanded the concept of unity of matter and energy. Vacaspati recognized light as composed of minute particles emitted by substances, anticipating Newton’s Corpuscular Theory of Light and the later discovery of the Photon. In Botany, Sankara Mishra and Kanada have discussed the circulation of sap in the Plant and the Santiparva of Mahabharata has clearly stated that the plants develop on the strength of nutrients made through interaction of sunlight and materials obtained from the air and ground. Bhaskarcharya's concept of Differential Calculus preceded Newton by many centuries. His study of time identified Truti: The 3400th part of a second as the unit of time.

Newton supposed that all matter attracted other matter inversely according to the square of the distance; and the hypothesis was found to account for the whole movements of the heavenly bodies; which all became verifications of what Newton supposed to be the law of the solar system. Adopt the hypothesis that Jesus was what He is represented, and the whole of the books and the history becomes a verification.

The Hindu systems of astronomy are by far the oldest, and that from which the Egyptians, Greeks, Romans, and even the Jews derived Hindus their knowledge.

Science was woven into philosophical thought - The study and cultivation of exact sciences in India was a part of search for truth and reality. From Vedic times onwards, investigations into the realm of the spiritual included those of the physical. The whole of the philosophical literature is replete with and based on some of the tenets of science as we understand it today. It has been an unmitigated calamity for India that it were the philologists, both eastern and western, who became the first interpreters to her ancient Sanskrit literature. India's Sanskrit literature came to be interpreted in an apologetic tone and from the standpoint of the western achievements. Some of the sublimities of the Hindu thought, far ahead of the prevailing times, were considered as oddities belonging to primitive past. The great Orientalists were philologists, not philosophers.
India was called the Bharat Varsha, the "country that embraces all in one bond," and she was selected to become the embodiment of that immutable, eternal, law of the universe, Santana Dharma - dharma is that which "holds together" - which makes the universes run in their orbits. It was this principle of dharma, synthesis, balance, harmonious relationship between various forces and factors, between various individuals and groups, that came to be the corner-stone of her civilization." "India has been known as the moksha-bhumi and karma-bhoomi, the Land of Liberty, spiritual and temporal, gained through service of fellowmen. India was not thought of as a bhoga-bhumi, a pleasure-resort for a single life-time allowed to the mortals. India is the only country in the world where civilization has revolved round this fundamental spiritual nucleus, where the greatest concentration of intellect has centered round the basic human problem of existence...
In India, religion became scientific and philosophical; science received religious sanction and philosophic support, and philosophy became religious, with a practical bearing on the problems of daily life. Here lies the secret of India's uniqueness and greatness. India saw Reality as a whole; there was no partition walls in the world of the One. With this universality, humanity and sublime idealism India offered a challenge to time.

[W]e do still tread in the steps of the Ancients in this Physical Astronomy; inasmuch as they knew that the Celestial Bodies gravitated towards each other, and were retain'd in their Orbits by the force of Gravity; and were also apprized of the Law of this Gravity.

Neo-Platonism and Christian Gnosticism owe much to India. The Gnostic ideas in regard to a plurality of heavens and spiritual worlds go back directly to Hindu sources. Soul and light are one in the Sankhyan system, before they became so in Greece, and when they appear united in Greece it is by means of the thought which is borrowed from India. The famous three qualities of the Sankhyan reappear as the Gnostic 'three classes'."

That Hindu astronomical lore about ancient times cannot be based on later back-calculation, was also argued by Playfair’s contemporary, the French astronomer jean-Sylvain Bailly: “The motions of the stars calculated by the Hindus before some 4500 years vary not even a single minute from the [modem] tables of Cassini and Meyer. The Indian tables give the same annual variation of the moon as that discovered by Tycho Brahe - a variation unknown to the school of Alexandria and also the Arabs.”