sudipal

Upanayana Ceremony clothing, Bengal
Sudip Kundu (photographer) wrote:
The word Upa+nayana means taking somebody near (upa) knowledge. In ancient times, after the ceremony was performed, the child was sent to the Guru’s house (Gurukul) for education, where the child remained until completion of education.
Even today, there are many Vedic Gurukulas (traditional Vedic schools) which follow this practice.
(via Instagram: Sudip Kundu (photographer))

Upanayana is one of the traditional saṃskāras (rites of passage) that marked the acceptance of a student by a guru (teacher) and an individual’s entrance to a school in Hinduism.

Is anything tough enough to survive on Mars?

Researchers at the University of Arkansas recently took a step toward answering a question for the ages: Is there life on Mars? Answer: they can’t rule it out.

Two recent publications suggest that life, in the form of ancient, simple organisms called methanogens, could survive the harsh conditions found near the surface of Mars, and deep in its soils. Using methanogens to test for survivability is particularly relevant because scientists have detected their byproduct, methane, in the Martian atmosphere. On Earth, methane is strongly associated with organic matter, though there are non-organic sources of the gas, including volcanic eruptions.

Scientists aren’t yet sure what the presence of Martian methane means. But one possibility is that tenacious life flourishes on Mars despite the rocky soil, thin atmosphere and scarcity of liquid water.

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Can we see a singularity, the most extreme object in the universe?

A team of scientists at the Tata Institute of Fundamental Research (TIFR), Mumbai, India, have found new ways to detect a bare or naked singularity, the most extreme object in the universe.

When the fuel of a very massive star is spent, it collapses due to its own gravitational pull and eventually becomes a very small region of arbitrarily high matter density, that is a`Singularity’, where the usual laws of physics may breakdown. If this singularity is hidden within an event horizon, which is an invisible closed surface from which nothing, not even light, can escape, then we call this object a black hole. In such a case, we cannot see the singularity and we do not need to bother about its effects. But what if the event horizon does not form? In fact, Einstein’s theory of general relativity does predict such a possibility when massive stars collapse at the end of their life-cycles. In this case, we are left with the tantalizing option of observing a naked singularity.

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