A yantra, used to counteract negative energies in a building. The science
of Vastu, related to Feng-Shui, is closely connected to other Vedic sciences,
such as architecture,geometry and astrology.Yantras are diagrammatic representations
of the various Hindu deities and are sometimes used as visual aids to meditation.
Dhanvantari, an incarnation of Vishnu, who was born from the ocean of milk when it was churned by the gods and demons. He is credited with revealing the science of Ayurveda.
India's arts and sciences are extensive and many may have predated their Western counterparts. These disciplines usually contained significant spiritual elements, and were not simply attempts to unethically exploit nature or improve the material standard of living. The relevance of Hindu art and science is increasingly recognised in the West.
India is often credited with contributing to the world, via Arabia, our
current numerals and the concept of "zero." Hindu mathematicians certainly
formulated an ingenious system of mental arithmetic used in astronomical calculations.
This science of Vedic mathematics was revived quite recently by a prominent
sannyasi, Swami Bharati Krishna Tirthaji (1884–1960). From only sixteen Sanskrit
sutras (aphorisms) he expounded a whole mathematical discipline, by which
normally lengthy calculations can be performed almost instantaneously. His
writings include a concise proof of Pythagoras's theorem and a Sanskrit verse
that codifies the value of pi to thirty-one decimal places. Vedic mathematics
is currently taught in some British schools.
The Indian version of Feng-Shui. Experts claim that it goes back 5,000 years,
possibly pre-dating its Chinese cousin. It deals with the science of sacred
space and with harnessing natural and beneficial energies in the design, construction,
and decoration of buildings. It is connected to the microcosm-macrocosm
relationship illustrated in the story of the primal man found in the Rig-Veda.
Much information on Vastu is derived from the architectural Shilpa Shastra.
Many new books on this subject are now appearing on the market.
Ayurveda refers to a system of indigenous Indian medicine, mainly derived
from the Sushruta and Charaka Samhitas. This science is often attributed
to Dhanvantari, an incarnation of Vishnu who appeared from the milk-ocean
churned by the demons and demigods. He taught that sickness is rooted in an
imbalance in three bodily humours – wind, bile, and phlegm. Harmony is achieved
by balancing these doshas through suitable diet, regulated lifestyle, positive
mental attitude, and prescribed natural remedies. The system advises preventative
rather than reactive methods, and treats individuals according to their unique
constitutions. It is still practiced throughout India, and is increasingly
popular in the West.
Alchemy and Chemistry
Hinduism developed an alchemy based on two key elements – sulphur and mercury.
These correlate with the tantric male-female symbolism of Shiva and Shakti.
Some Hindus claim that yogis can transform base metals into gold. Today this
science of alchemy is related to Ayurvedic medicine, and specifically the
preparation of mineral remedies.