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Where should it fall?

आकृष्टिशक्ति · स्वभाव · निराधार

Every cosmology owes an answer to one child's question: what holds everything up? The Sanskrit texts answer it four times over, each answer better than the last. The purāṇas tie the sky to Dhruva with cords of wind and notice the question exactly. The siddhāntas set a globe in empty space and declare it self-supported. And in 1150 CE Bhāskara finishes the argument with two moves a modern reader will recognize: a natural power in the earth that DRAWS the heavy toward it — so that falling is appearance, attraction the fact — and a symmetry argument for why the earth itself, in uniform space, has nowhere to fall at all.

Every quote is a slice from Jñānakośa, the research database behind this atlas; each links to the e-text it was sliced from. Translations are literal renderings; dates are approximate spans of compilation.

Bound, and not falling

न पतन्ति · the question noticed

The purāṇic sky is a machine of wind-cords anchored to the pole star — and the Skanda-purāṇa states plainly what the cords are FOR:

Skanda-purāṇa 7.2.18.106 · c. 700–1200 CE
ध्रुवे बद्धा ग्रहाः सर्वे य एतेऽप्युडवः स्थिताः ॥ ते सर्वे विष्णुवचसा न पतंति धरातले ॥ १०६ ॥
Bound to Dhruva, all the planets, and these stars that stand [in the sky] — by the word of Viṣṇu they do not fall upon the surface of the earth.

The explanatory slot is open and named: something must keep the luminaries from falling. Cords answer it for the sky. The earth needs a different answer.

See: the full rotation machine, in the wanderers essay

The globe that holds itself

खमध्यस्था · the self-supported globe

Āryabhaṭa moves the pivot from Dhruva to the planet itself — the earth as the threshing-post of its own turning, suspended at the centre of space:

Āryabhaṭīya, Kālakriyā 15 · 499 CE
भानां अधस्शनैश्चरसुरगुरुभौमार्कशुक्रबुधचन्द्रास् । एषां अधस्च भूमिस्मेधीभूता खमध्यस्था । । ३.१५ । ।
Beneath the stars stand Saturn, Jupiter, Mars, the Sun, Venus, Mercury and the Moon; and beneath these the earth — become the post, standing in the middle of space.

And the Sūrya-siddhānta gives the doctrine its canonical verse: the globe of the earth stands in the void, bearing an utmost power of upholding — the very verse Bhāskara's commentators will cite by name:

Sūrya-siddhānta 12.31–32 · c. 400–800 CE
मन्दामरेज्यभूपुत्रसूर्यशुक्रेन्दुजेन्दवः / परिभ्रमन्त्य् अधो+अधःस्थाः सिद्ध्हविद्याधरा घनाः // मध्ये समन्ताद् अण्डस्य भूगोलो व्योम्नि तिष्ठति / बिभ्रानः परमाम् शक्तिम् ब्रह्मणो धारणात्मकाम् //
Saturn, Jupiter, Mars, the Sun, Venus, Mercury and the Moon revolve each lower than the last; below them the Siddhas, Vidyādharas and the clouds. In the middle of the [cosmic] egg, the earth-globe stands in space, bearing the supreme power of Brahman, whose nature is upholding.

The power that draws

आकृष्टिशक्ति · 1150 CE

Then Bhāskara's Golādhyāya closes the argument. First the metaphysics: powers inhere in things — heat in fire, cold in the moon, motion in wind — and stability is the earth's own nature. Then the physics: the earth possesses ākṛṣṭi-śakti, a power of ATTRACTION, by which the heavy is drawn toward her and only SEEMS to fall. And last the symmetry: in space uniform on every side, where should the earth herself fall?

Siddhāntaśiromaṇi, Golādhyāya, bhuvanakośa 5–6 · 1150 CE
इदानीं कथमियं भूमेः स्वशक्तिरिय शंङ्गं परिहरनाह यथोष्णताफनलयोश्च शीतता विधौ ङतिः के कठिनवमश्मनि । मरुच्चलो भूरचला स्वभावतो यतो विचित्रा बत वस्तुशक्तयः। ५॥ आकृष्टिशक्तिश्च मही तया यरखस्थं गुरु स्वाभिमुखं स्वशक्या । आकृष्यते तपततीव भाति समे समन्तात् पतत्वियं खे ॥ ६ ॥
As heat is of the sun and fire, coldness of the moon, flowing of water, hardness of stone — the wind is mobile and the earth unmoving BY THEIR OWN NATURE: for various indeed are the powers of things. And the earth possesses a power of attraction (ākṛṣṭi-śakti): by that power of her own, what is heavy in the sky is drawn toward herself, and [only] appears to fall. But when [everything] is uniform on every side — where should the earth herself fall, in space?

This is not Newton — there is no mutuality, no measure, no claim that the same power moves the moon. But the slot that gravitation fills is here filled by a named natural power, argued from symmetry — five centuries before the Principia, in a working astronomy textbook.

The slot and its fillers

Cords of wind, a divine peg, a self-supporting globe, a power of attraction: four answers to one question, each keeping what its predecessor got right. The cords knew something must act; the pivot knew it need not be external; the siddhānta knew the earth stands in void; Bhāskara knew that falling is relative to a puller, and that symmetry silences the question of the earth's own fall. When gravitation finally arrived with quantity and universality, it did not so much displace these answers as pay off a question they had kept open — and kept precise — for two and a half millennia.

Each quote carries its full citation, edition, revision-pinned source link and confidence grading in Jñānakośa — batch gola-gravity-pass1 (which unmasked a title-homonym e-text and fetched Bhāskara's real Golādhyāya from its scans) with the standing cosmography passes. Drop something tonight and watch it: Bhāskara would say the earth just pulled it home — and would ask you, with a smile, where exactly YOU think the earth should fall.

The series

Sanskrit texts on the sky and the sciences around it, one thread per essay — readable in any order.

  1. Five stars the texts kept watching
  2. The sky that moved
  3. The shadow explained
  4. The instruments
  5. The cup that refills
  6. The wanderers
  7. The smoke-bannered
  8. The sphere that turns
  9. The nothing that counts
  10. The sum without end
  11. The pulverizer and the wheel
  12. Where should it fall? — you are here