Bhagavad Gita 18.30: Sattvic Understanding and Four Fields of Discernment
Study Gita 18.30 with Sanskrit, IAST, original translation, four key pairs, Shankara's context and careful examples of discernment and responsibility.
॥ असतो मा सद्गमय ॥
Study Jyotish and Hindu tradition
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667–682 / 682Varsha and Masa Bala: Year–Month Lords, Sunrise Boundaries and Full Ledgers
Reproduce Varsha and Masa Bala using the named year–month formulas, seven-year and twelve-month tables, sunrise rollovers, leap-day checks and full ledgers.
Distance Modulus and Extinction: Calculate Stellar Distance with Worked Examples
Calculate stellar distance from apparent and absolute magnitude, correct for extinction, propagate uncertainty, check parallax and avoid unresolved-binary bias.
Bhagavad Gita 9.22: Ananya Bhakti and the Meaning of Yoga-Kshema
Read Gita 9.22 with Sanskrit, word meanings, chapter context and Shankara's attributed commentary. Understand yoga-kshema, steadfast devotion and common misreadings.
Bhava Bala Calculation: House Lords, Direction and a Complete Twelve-House Worksheet
Reproduce Astrogyana's core Bhava Bala with house-middle geometry, seven aspect weights, a twelve-house ledger and exact Sagittarius–Capricorn boundaries.
Telescope Angular Resolution: Rayleigh Limit, Airy Disks and Camera Sampling
Calculate the Rayleigh limit with aperture and wavelength tables, Airy-radius examples, pixel scale, Nyquist sampling and clear limits from seeing and contrast.
Bhagavad Gita 17.14: Bodily Tapas, Reverence, Straightforwardness and Non-Injury
Study Gita 17.14 with Sanskrit, word meanings and Shankara's commentary. Understand bodily tapas alongside speech, mind, intention and the limits of outward display.
Ashtakavarga Reductions: Trikona, Ekadhipatya and a Complete Pinda Worksheet
Follow all twelve signs from raw Ashtakavarga through Trikona and Ekadhipatya reductions, check occupancy cases and calculate Rashi, Graha and Shodhya Pinda.
Kepler's Third Law: Orbital Period, Total Mass and the Correct Semimajor Axis
Calculate two-body orbital periods with full units, distinguish relative and barycentric axes, infer total mass and test eccentricity and uncertainty examples.
Bhagavad Gita 18.5: Why Sacrifice, Giving and Tapas Are Not Abandoned
Read Gita 18.5 in Sanskrit with word meanings, its link to 18.6, Shankara's commentary and careful examples distinguishing action from attachment.
Yogini Dasha Calculation: Birth Balance, Eight Lords and Dated Antardashas
Calculate the Yogini Dasha starting lord, remaining birth balance and dated subperiods with all 27 nakshatras, a complete example and explicit year conventions.
Vis-Viva Equation: Orbital Speed, Escape Velocity and Energy Explained
Calculate orbital speed from distance and semimajor axis, compare circular and escape speeds, distinguish altitude from radius and check energy and delta-v examples.
Bhagavad Gita 18.23: Sattvic Action, Duty and Freedom from Attachment
Study Gita 18.23 through Sanskrit, word meanings, Shankara's commentary and practical examples distinguishing duty, attachment, aversion and responsible action.
Janma Panchang Calculation: Tithi, Nakshatra, Yoga, Karana and Vara at Birth
Calculate the Panchang at birth using a complete angular example, Karana boundaries, ayanamsa comparisons and the difference between sunrise Vara and civil weekday.
Hohmann Transfer Calculation: Two Burns, Delta-v and Travel Time
Calculate both Hohmann transfer burns and the coast time with a complete 7000-to-14000 km example, normalized curves, inward transfers and rendezvous limitations.
Bhagavad Gita 18.11 Meaning: Renouncing the Fruit Without Abandoning Care
Read Gita 18.11 with Sanskrit, word meanings, chapter context and Shankara's distinction between embodied identification, karma-yoga and complete renunciation.