Did you teach your kids their जन्मतिथि? Or how it differ from their birthday (because तिथि differs from day)? Why are even our two secular festivals defined, like birthdays, only on that Christian calendar? Why do schools dodge a comparison with a scientifically better alternative, such as the Indian calendar?

What are Nakshatras and Rashis? Do they decide human destiny? Or are they just stars used to measure angles in the sky? And exactly how does one measure angles in space or even angles of latitude and longitude on Earth? Why does Tuesday follow Monday which follows Sunday?

But did ancient India at all have science or the experimental method? How did ancient Indians know the earth is round? That it stands supportless in space but does not fall down? How did they measure its size? And after how many millennia did the West rise above superstitions to catch up? What is the 2-scale principle for harmonic scales used to measure the Earth’s size? How did the Indian calendar successfully identify the rainy season missing on the Gregorian calendar? What is the Indian-origin planetary model today called the Tychonic model? Why is the heliocentric model against Newtonian physics? Why is the correct barycentric model needed to explain observed tides? Why do the moon’s phases affect tides? Are Rahu and Ketu superstitions or essential to predict eclipses?

Learn all this and more in this book which is the first to teach the Indian traditional calendar as science, not astrology.