Science & Mathematics Questions & Answers

Science & Mathematics Questions & Answers

Why are Chinese calendars based on animals?

Why are Chinese calendars based on animals?

A large percentage of the Chinese are followers of Taoism. According to Taoist belief, the Jade Emperor is the ruler of heaven, mankind and hell. It is said that the Jade Emperor decided to assign a different animal for each year, so that people could easily remember the twelve-year zodiac cycle. So he called one representative from each animal species …

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क्या आप जानते हैं की हम फोन करते हुए Hello ही क्यूं कहते हैं?

Alexander Graham Bell

हम किसी को फोन करने पर हैलो ही क्यों कहते हैं ? हम चाहे फोन रिसीव करें या कॉल करें। हमारा सबसे पहला शब्द होता है Hello! आखिर हम इसी शब्द का इस्तेमाल क्यों करते हैं? अगर ये कहा जाय कि यह किसी का नाम है तो आप सोंच में पड़ जायेंगे। लेकिन हम आपको बता दें की जी हां, यह नाम था वैज्ञानिक ग्राहम बेल की गर्लफ्रेंड का। जिसका पूरा …

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Why scratching an itch is so rewarding!

Areas of the brain involved in motor control and reward processing light up more in chronic itch patients when they scratch, according to a new study which may explain why scratching evokes a pleasurable sensation. Researchers in the Department of Dermatology and Temple Itch Center at Temple University School of Medicine (TUSM) used advanced functional magnetic resonance imaging to look …

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What is talcum powder made of?

What is talcum powder made of?

The main constituent of talcum powder is talc added with some perfume. Talc is chemically known as magnesium silicate, having a distinguishable character of extreme softness. Also called soap stone, talc is the softest mineral (the hardest being diamond). Talcum powder may also contain germicide with a view to effectively neutralise bad odour of perspiration and various perfumes for fragrance. …

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What is the difference between champagne and wine?

What is the difference between champagne and wine?

Wine is made by fermenting grape juice. Champagne is a white sparkling wine strictly from Champagne region in France and is made by re-fermenting wine in bottles and adding yeast to it. Wine re-fermented in bottles anywhere else in the world or aerated by injecting carbon dioxide is called Sparkling Wine and not Champagne Funny Logics Simple, Champagne is for …

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How does wood become termite-resistant?

How does wood become termite-resistant?

Wood is made termite-resistant by treating it with creosote oil, black oil or other wood preservatives. This is applied in large tanks under pressure to make sure it penetrates the wood deeply. Most termites will die if their supply of moisture is cut off. Funny Logics By treating it with pungent chemicals. By ‘woodpeckering’ the termite.

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What is Eastman colour?

What is Eastman colour?

The term is named after George Eastman (1854-1932), an American photographic inventor and manufacturer. He introduced machine-coated plates, the Kodak camera, paper roll, celluloid roll and daylight-loading films, thereby creating the basic materials for still and motion picture photography. He founded Eastman Kodak Co in 1892. Funny Logics Indian movies inspired by Japanese, Chinese, and Korean films. The colour technology …

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What is acid rain?

What is acid rain?

Acid rain was first noticed and studied in 1872. The formation of acid rain starts as soon as polluting chemicals namely nitrogen and sulphur oxides emissions from factories and car engines are sent up into the atmosphere. When these pollutants reach the atmosphere, they combine with existing water vapors, oxygen and sunlight. The reaction creates a diluted ‘soup’ of highly …

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Why does photo chromatic glass turn grey in sunlight?

Why does photo chromatic glass turn grey in sunlight?

Photo chromatic glass contains extremely small crystals of silver chloride, silver bromide or silver iodide. Silver chloride is especially sensitive to ultraviolet radiation and splits into silver and chlorine. Silver causes the glass do darken. When the source of light is removed, the reaction gets reversed and the glass comes back to its original colour. Funny Logic Because ‘shady’ characters …

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What is the radio-carbon dating method in archaeology?

What is the radio-carbon dating method in archaeology?

Radio-carbon dating is a method of determining the age of an ancient matter developed by Willard F Libby in 1949, at the University of Chicago. Radio-carbon or carbon-14 is produced in nature and is available in the atmospheric carbon dioxide which enters plants through photo-synthesis. Thus, it also reaches the animals through the food chain. In samples like bones, wood, …

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