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When molecules form from many atoms, the atoms can combine in different ways. Two forms of the same molecule can have the same composition but have different arrangements of atoms, giving rise to isomers. Some isomers may have structures that are mirror images of each other. Such molecules are called chiral molecules.

As much as we’d like to shush about it, the fact remains that mental health is an imperative component of one’s overall well-being that encompasses a wide range of emotional, psychological, and social factors.

Two new studies from the Indian Institute of Bombay (IIT Bombay), Mumbai, show the importance of defects in the arrangement of atoms in a crystal, called dislocations, in shaping the physical properties of metallic alloys.

कई परमाणुओं से मिलकर जब अणु निर्मित होते हैं, तो इन परमाणुओं के जुड़ने की प्रक्रिया पृथक-पृथक हो सकती है। एक ही अणु के दो रूपों की संरचना समान हो सकती है किन्तु यदि परमाणुओं की व्यवस्था पृथक-पृथक होती है तो समभारी (आइसोमर्स) बनते हैं। कुछ समभारियों में ऐसी संरचनाएं हो सकती हैं जो एक दूसरे की दर्पण छवियां (मिरर इमेज) हों। ऐसे अणुओं को काइरल अणु कहते हैं। वैज्ञानिक ऐसे

अनेक अणू एकत्र येऊन रेणू तयार होताना अणूंची त्या रेणूमधली मांडणी वेगवेगळ्या पद्धतीने होऊन त्याच्या वेगळ्या रचना तयार होऊ शकतात. अश्या रचनांना समसूत्री(आयसोमर/isomer) म्हणतात. काही समसूत्रींतील अणूंच्या रचना एकमेकांचे आरशातले प्रतिबिंब असतात. जसे दोन हात एकमेकांवर ठेवल्यास तंतोतंत जुळत नाहीत, तश्याच ह्या रचना एकमेकांवर ठेवल्यास जुळत नाहीत.

A river meanders lazily through the plains but, in rocky terrain, might tumble rapidly down as a waterfall, sometimes in multiple cascades. Charles Darwin had earlier proposed that changes in the characteristics of organisms happen very slowly over time and generations, just like the river’s gentle flow.

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Processing emotions consumes attention and compromises the quality of the task at hand

Researchers make a new cost-effective, multi-use laparoscopic instrument with inputs from doctors

Study finds that decreasing air pollution can help reduce anaemia in women of reproductive age