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परोपकारी राजा

Humanitarian

एक राजा बहुत बड़ा प्रजापालक था, हमेशा प्रजा के हित में प्रयत्नशील रहता था। वह इतना कर्मठ था कि अपना सुख, ऐशो-आराम सब छोड़कर सारा समय जन-कल्याण में ही लगा देता था। यहां तक कि जो मोक्ष का साधन है अर्थात भगवत-भजन, उसके लिए भी वह समय नहीं निकाल पाता था। एक सुबह राजा वन की तरफ भ्रमण करने के …

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Sleep helps us learn and memorise: Study

Sleep helps us learn and memorise: Study

Scientists have found the underlying mechanism of how sleep helps us learn and memorise. A new study suggests that sleeping triggers the synapses in our brain to both strengthen and weaken, which prompts the forgetting, strengthening or modification of our memories in a process known as long-term potentiation (LTP). Researchers led by Sidarta Ribeiro at the Brain Institute of the …

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60 लीटर दूध देने वाली गाय

60 लीटर दूध देने वाली गाय

मामला हरियाणा के पानीपत जिले का है। जहां पर एक गाय की खासियत को पेश किया जा रहा है। यह गाय एक नेशनल अवार्डी गाय है जो एक दिन में 60 लीटर दूध देती है। इसका औसत निकालने पर इस बात का पता चलता है कि यह गाय हर एक घंटे में ढाई लीटर दूध दे रही है। गाय द्वारा दिए …

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बृहस्पति ग्रह और राजयोग का सुख

Jupiter Planet

बृहस्पति (Jupiter) एक ऐसा ग्रह है जो कई प्रकार से उक्त और अनुक्त दोषों का उपशमन करने की क्षमता रखता है। गुरु की धनु और मीन स्वराशि है। स्वराशि में स्थित ग्रह स्वग्रही कहलाता है। स्वग्रही ग्रह अपने पराक्रम के चरमोत्कर्ष पर होता है। मीन और धनु में तुलनात्मक दृष्टि से धनु में विशेष बली होता है। चंद्रमा की राशि …

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What is a neutron bomb and how is it different from the atom bomb?

What is a neutron bomb and how is it different from the atom bomb?

A neutron bomb is a small nuclear weapon which makes use of a neutron-rich substance. This emits neutrons and gamma rays lethal within a radius of 1 to 2 kilometre. It does not destroy concrete structures and plant life, but only humans and animals. Deaths are caused due to penetration of neutrons and gamma rays. An atom bomb produces energy …

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What foaming agent is used in shampoos, soaps etc? Do we use the same thing for all such products?

What foaming agent is used in shampoos, soaps etc? Do we use the same thing for all such products?

Shampoo or soap molecules have two chemically distinct parts, that interact differently with water. One part is a long hydrocarbon chain which is water hating (hydrophobic) and non-polar and another belongs to COONA group which is polar, water-loving (hydrophilic) and creates the foam in water. The hydrophilic part makes soap water-soluble. The hydrophobic part combines with dirt and other elements. …

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What are mosquito mats and coils made of? How harmful are they for humans?

What are mosquito mats and coils made of? How harmful are they for humans?

‘The Flowers of Painted Lady’ plants contain an insecticidal element, pysellethein, which is the main ingredient used in mosquito repellent coils and mats. Just about 2 to 4 microorgams of this element is enough to kill a mosquito. Lesser doses of this paralyses them. However, pysellethein does not affect the warm-blooded species. An average mat or coil contains only 40 …

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How is the age of rocks determined?

How is the age of rocks determined?

Certain rocks give off high energy radiation due to the presence of radioactive substances in them. Radioactive substances have got the property of decay (break down of active material with the passage of time). For example, uranium decays giving rise to lead. By measuring the amount of lead-present in the uranium sample scientists can determine the ages of rocks by …

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