Скачать или смотреть Magnificent Yantras : - Nadi Valay Yantra

The *Nadi Valaya Yantra* is a unique and highly specialized instrument at the Jantar Mantar observatories, designed to measure the time of day and determine the position of celestial objects using the principles of the equatorial coordinate system. It is notable for its dual functionality, representing both the northern and southern hemispheres. This instrument showcases the integration of science, astronomy, and architectural brilliance in ancient India.

---

**Structure and Design**:

1. **Dual Circular Dials**:
The Nadi Valaya Yantra consists of two large, circular dials or hemispherical sundials:
One dial faces *north* and tracks celestial objects in the northern hemisphere.
The other dial faces *south* and tracks celestial objects in the southern hemisphere.
The two dials are placed back-to-back, enabling observations from both hemispheres.

2. **Inclined Plane**:
The dials are inclined at an angle equal to the latitude of the location (e.g., Jaipur ~27°).
This inclination ensures alignment with the Earth's equatorial plane, making it highly accurate for equatorial time measurements.

3. **Central Gnomon**:
Each dial features a gnomon (a rod or triangular edge) at its center.
The shadow of the gnomon moves across the calibrated scales on the dials as the sun travels across the sky, marking the passage of time.

4. **Time Scales**:
The dials are marked with precise scales that indicate local solar time.
Adjustments for the equation of time can convert these readings into standard time.

---

**Functionality**:

1. **Time Measurement**:
The Nadi Valaya Yantra accurately measures *local solar time* for both hemispheres, with readings taken directly from the position of the shadow on the scales.

2. **Seasonal and Hemispherical Observations**:
The north-facing dial is used when the sun is in the *northern hemisphere* (from the spring equinox to the autumn equinox).
The south-facing dial is used when the sun is in the *southern hemisphere* (from the autumn equinox to the spring equinox).

3. **Equatorial Coordinate System**:
The instrument helps in determining the *declination* of celestial bodies and their angular positions relative to the celestial equator.
It aids in understanding the sun's movement and seasonal variations.

---

**Scientific and Historical Importance**:

1. **Accuracy**:
The Nadi Valaya Yantra's alignment with the equatorial plane minimizes observational errors, making it a highly precise instrument for its time.

2. **Dual Hemispherical Observation**:
Its ability to function for both the northern and southern hemispheres is a rare feature among historical astronomical instruments.

3. **Symbol of Astronomical Advancements**:
This yantra highlights the advanced understanding of the Earth’s tilt, latitude, and equatorial systems in 18th-century India.

4. **Architectural Significance**:
The symmetrical design and meticulous calibration of the Nadi Valaya Yantra underscore the combination of functionality and aesthetic appeal in ancient Indian observatories.

---

**Present-Day Relevance**:

The Nadi Valaya Yantra remains a functional sundial and is used for demonstrations of astronomical principles.
It attracts scientists, historians, and tourists, offering insights into ancient methods of celestial tracking and timekeeping.

In summary, the Nadi Valaya Yantra is a testament to the ingenuity of Indian astronomers and their ability to blend scientific precision with architectural brilliance. Its dual-dial design and functionality for both hemispheres make it a standout feature at Jantar Mantar.

Link To The Documentary Film:-
   • Jantar Mantar ~ a king's celestial backyar...  

Bonus Features :-
Swamijis exclusive full Interviews.
The source of all knowledge is consciousness:
   • The source of all knowledge is consciousness  

Jantar Mantar a testimony to the superiority of Vedic Astronomy:
   • Jantar Mantar a testimony to the superiori...  


#jantarmantar #jantarmantarjaipur #jaipur #rajasthan #vedicastronomy #vedicarchitecture #vedas #incredibleindia #indianhistory #indianculture #jantarmantarrajasthan #jaipurdiaries #rajasthanheritage #vedicwisdom #jaipurcity #rajasthantravel #astronomyindia #heritageindia #ancientindia #ancientwisdom #vedictraditions #jaipurmonuments #indianarchitecture #rajasthanitourism #jaipurtravel #unescoworldheritage #heritagesitesindia #incrediblejaipur #indiantourism #indiaheritage #rajasthanistyle #ancientarchitecture #historicindia #astronomicalinstruments #rajasthantrip #culturalindia #indiancultureandtradition #jaipurhistoricalsites #rajasthanexplored #indianmonuments #rajasthanadventures #jaipurvibes #spiritualindia #vedicknowledge #jantarantarastronomy #jaipurincredible #rajasthanipride #heritagewalks #travelindia #discoverrajasthan