CULTURAL QA 05-2023-29 Q1 How does slowing down a fan make itlast longer?
A1 Gopala Krishnan, Former AssistantGeneral Manager 1996-2004 at Department of Telecom (1966–2004)0y Normally ceilingfans have long life. Themain problem occurring to the old type fans is failure of condenser.Rare problem is short circuit in motor winding and rewinding is done. If a fan is made tofunction for long period the bearings may become worn out. They have to bereplaced. I am having fansinstalled in 2006 functioning perfectly till date. The onlymaintenance required is cleaning of blades at least once a quarter and rarelylubrication of bearings. The slowing down a fan decreases the wear and tear ofbearings. But it is not an important factor in increasing the fan life. The present daypower saving B L D C fan is not familiar to me. Q2 Are pineapples good for stomachulcers? A2 Weights Loss Diet, Health Director |Loving Father | Business Director Sat Stomach ulcers,also known as peptic ulcers, are painful sores that develop in the lining ofthe stomach or small intestine. They are often caused by the bacterium Helicobacter pylori (H. pylori)or by the use of nonsteroidal anti-inflammatory drugs (NSAIDs) such as aspirinor ibuprofen. The symptoms of stomach ulcers include abdominal pain,bloating, nausea, vomiting, and loss of appetite. Pineapples are atropical fruit that is known for its sweet and tangy taste. They are also richin vitamins, minerals, and enzymes that are beneficial for health. Pineapplescontain bromelain, a group of enzymes that are known to have anti-inflammatoryand digestive properties. These enzymes can help to break down proteins in thestomach and improve the digestion of food. There is some evidence to suggest that pineapples may bebeneficial for stomach ulcers. One study foundthat a mixture of pineapple juice and honey was effective at reducing thesymptoms of stomach ulcers in rats. Another study found that bromelain was effectiveat reducing inflammation in the stomach lining and preventing the developmentof ulcers in rats. However, it is important to note that there is limitedresearch on the effects of pineapples on stomach ulcers in humans.While some people may find that consuming pineappleshelps to alleviate their symptoms, others may find that it exacerbates theircondition. This is because pineapples are acidic and can irritate the stomachlining in some people. It is alsoimportant to note that pineapple juice may interact with certain medications,such as antibiotics, blood thinners, and some antidepressants. Therefore, it is important toconsult with a healthcare provider before consuming pineapples or pineapplejuice if you are taking any medications. In general, abalanced diet that includes a variety of fruits and vegetables is recommendedfor overall health and may help to prevent stomach ulcers. It is also importantto avoid foods and beverages that can irritate the stomach lining, such asspicy foods, alcohol, and caffeine. In conclusion,while there is some evidence to suggest that pineapples may be beneficial forstomach ulcers, more research is needed to determine their effectiveness inhumans. If you are experiencing symptoms of a stomach ulcer, it is important to consult with ahealthcare provider for proper diagnosis and treatment. Q3 Why has no one thought of aligningairplane windows with seats? A3 RI Shohag, Blogger 10h Windows existon an airplane only for psychological reasons. If it weren't tohelp passengers feel less anxious (or simply to enjoy the flight more), therewould be no reason to add the weight of windows or drill holes in a very rigidmetal tube. You may noticethat cargo planes rarely have windows (unless converted from an old passengerplane). Aircraftdesigners placed as many windows as the project could “afford”, withoutworrying about the location of the seats. Second, you may have noticed that the rows of seats are notbolted to the floor, but on rails that run back and forth. This is so that theairline can add or remove rows and reconfigure according to their needs. Again, this hasnothing to do with where the windows might be. It is a purely economicdecision. The two factorscombined make it pure chance if your seat lines up perfectly with a window. However, thereare currently companies that have designed an innovation in this regard. This innovative idea consists of thin windows embedded inthe interior walls of planes to replace windows. Cameras spread around the exteriorof the aircraft will transmit the images to the screens. Passengers willbe able to dim the screens, change the images or turn them off. Spike Aerospace, which designed the plane,claims that eliminating the windows will decrease aerodynamic drag -- windows"cause significant challenges in the design and construction of anaircraft fuselage," according to the company. In addition to drag, windows require structural supportthat represents additional weight for airplanes.Both problems could be eliminated using micro cameras and screens Q4 Why neutral is absent in 3 phaseconnection? A4 Info Sage, Former InsightInvestigator (2018–2022)Wed In a three-phaseelectrical system, the concept of neutral is not absent,but it is different from a single-phase system. Here's a simple understandingof why the neutral is not always necessary in a three-phase connection: 1. Balanced Loads: In a balanced three-phasesystem, where the loads are evenly distributed across the three phases, the neutral wire carries verylittle current or may not be required at all. The loads on eachphase are equal, resulting in the cancellation of the neutral current. 2. Phases Offset: The three phases in a three-phasesystem are 120 degrees apart from each other. This phase offset ensures acontinuous and smooth flow of power, eliminating the need for a neutral wire tobalance the currents. 3. Delta Connection: In some three-phase systems,such as a delta connection, the neutral wire is not used.The loads are connected in a closed loop, and each load is connected betweentwo phases. Since there is no direct connection to a neutral point, the neutralwire is not required. 4. Power Transmission Efficiency: Three-phasepower transmission is more efficient and economical compared to single-phasepower. It allows for higher power transfer with less current, reducingresistive losses in the transmission lines. The absence of a neutral wire in certain three-phasesystems contributes to this efficiency. Not allthree-phase systems operate without a neutral wire. In situationswhere unbalanced loads or specific equipment require a neutral connection, aneutral wire is included. The absence of a neutral wire in a three-phaseconnection is specific to certain configurations and balanced load conditions. Q5 Where did mangoes originate from? A5 Farhad Rajshahi, Health Tips5h Mangoes arebelieved to have originated in South Asia, specifically in the region thatincludes present-day India, Myanmar (Burma), and Bangladesh. The fruit has along history in this region, with references to mangoes dating back thousandsof years. The mango tree, known as Mangifera indica, is thought tohave been cultivated in India for over 4,000 years. Since its originaldomestication, mango cultivation has spread to various parts of the worldthrough human migration and trade routes. Arab traders are believed to have introduced mangoes tothe Middle East and East Africa around the 4th or 5th century CE. From there, the fruit eventually made its wayto other parts of the world through exploration and colonization. Today, mangoesare grown in many tropical and subtropical regions around the globe, includingIndia, Southeast Asia, Africa, the Caribbean, Central and South America, andparts of the United States. Here are some additional details about mangoes: 1. Varieties: There are numerous mango varieties,each with its own unique characteristics. Some popular mango varieties includeAlphonso, Tommy Atkins, Kent, Keitt, Ataulfo (also known as Honey mango), andHaden. 2. Cultivation: Mango trees thrive in warm, tropicalclimates. They require well-drained soil and plenty of sunlight. Mango treestypically take a few years to bear fruit after planting, and the fruitingseason can vary depending on the variety and location. 3. Culinary Uses: Mangoes are widely used invarious cuisines around the world. They are consumed both ripe and unripe,offering different flavours and textures. Ripe mangoes are sweet, juicy, andoften eaten fresh or used in desserts, smoothies, and fruit salads. Unripemangoes are tangy and firm, commonly used in pickles, chutneys, and savourydishes. 4. Nutritional Value: Mangoes are not only deliciousbut also nutritious. They are a rich source of vitamins and minerals, includingvitamin C, vitamin A, potassium, and fibre. They are also known for theirantioxidant properties. 5. Cultural Significance: Mangoes hold cultural andsymbolic significance in many countries. In India, for example, mangoes areknown as the "king of fruits" and are associated with fertility andprosperity. They are also considered a sacred fruit in Hindu rituals andcelebrations. 6. International Trade: Mangoes are a valuablecommodity in international trade. Major mango-exporting countries includeIndia, Mexico, Thailand, Indonesia, and the Philippines. The fruit is transportedglobally, allowing people in various regions to enjoy mangoes throughout theyear. Remember, while mangoes are generally enjoyed by manypeople, it's essential to be aware of potential allergies or sensitivities. Some individualsmay have allergies to mango or experience skin irritation when handling thefruit's sap or peel. If you have any concerns, it's best to consult with ahealthcare professional. There are several advantages and benefitsassociated with mangoes. Here are some of the pros of mangoes: 1. Nutritional Value: Mangoes are rich in essentialvitamins and minerals. They are an excellent source of vitamin C, whichsupports the immune system, promotes wound healing, and acts as an antioxidant.Mangoes also provide vitamin A, which is important for eye health and immunefunction. Additionally, they contain dietary fibre, potassium, and variousantioxidants. 2. Antioxidant Properties: Mangoes containantioxidants such as zeaxanthin, beta-carotene, and flavonoids, which helpprotect the body against free radicals. Free radicals are unstable moleculesthat can cause cellular damage and contribute to various diseases. Antioxidantsneutralize these free radicals and reduce the risk of oxidative stress-relatedconditions. 3. Digestive Health: Mangoes are a good source ofdietary fibre, which aids in digestion and promotes regular bowel movements.Adequate fibre intake can help prevent constipation and maintain a healthydigestive system. 4. Skin Health: Mangoes are often used in skincareproducts due to their potential benefits for the skin. The fruit is rich invitamins and antioxidants that can help nourish and rejuvenate the skin. Somepeople also use mango pulp or extracts topically to soothe and moisturize theskin. 5. Eye Health: The high content of vitamin A andantioxidants like zeaxanthin and beta-carotene in mangoes is beneficial for eyehealth. These nutrients help protect against age-related macular degeneration(AMD), cataracts, and promote overall eye health. 6. Flavourful and Versatile: Mangoes have adeliciously sweet and tropical flavour, making them a popular fruit choice formany people. They can be enjoyed in various ways, including fresh, insmoothies, salads, desserts, sauces, salsas, and more. The versatility ofmangoes in culinary applications allows for creative and tasty recipes. 7. Mood and Energy Boost: Mangoes containnatural sugars and provide a quick energy boost. They also contain vitamin B6,which plays a role in the production of serotonin, a neurotransmitterassociated with mood regulation and feelings of well-being. It's important tonote that individual experiences and nutritional needs may vary. While mangoesoffer many potential benefits, it's always best to consume them as part of a balanceddiet and consult with a healthcare professional for personalized advice. While mangoes have numerous advantages, there are a fewconsiderations and potential drawbacks to be aware of.Here are some cons associated with mangoes: 1. Allergies: Some individuals may have allergies orsensitivities to mangoes. Mango allergies can range from mild to severe, andsymptoms may include itching, swelling, hives, or even anaphylaxis in rarecases. If you have a known allergy to mango or related fruits such as poisonivy or cashews, it's important to avoid consuming mangoes or productscontaining mango. 2. High Sugar Content: Mangoes are naturally sweetand contain a significant amount of sugar. While the sugar in mangoes isnatural and comes with fibre and other beneficial nutrients, individuals withdiabetes or those who need to watch their sugar intake should consume mangoesin moderation and consider their overall dietary balance. 3. Calories and Portion Control: Mangoes arerelatively high in calories compared to some other fruits. While they provideessential nutrients, overconsumption of mangoes without considering portionsizes may contribute to weight gain or difficulties in weight management. It'simportant to be mindful of portion control and incorporate mangoes as part of abalanced diet. 4. Environmental Impact: Mangoproduction, particularly on a large scale, can have environmental implications.The expansion of mango farming may contribute to deforestation, habitat loss,and the use of chemical fertilizers and pesticides. Sustainable farmingpractices and responsible sourcing can help mitigate these environmentalconcerns. 5. Availability and Price: Mangoes may not bereadily available or affordable in all regions throughout the year, especially innon-tropical climates. In some countries, mangoes are seasonal, and the costmay vary depending on factors such as supply and demand, transportation, andimport/export regulations. 6. Ripening and Shelf Life: Mangoes are known fortheir unique ripening process, which can sometimes be challenging to manage.They can take a few days to ripen after being picked, and the window of optimalripeness is relatively short. Improper handling or storage can result inspoilage or loss of flavour. 7. Fibrous Texture: While some people enjoy thefibrous texture of mangoes, others may find it less appealing. Certain mangovarieties can have fibrous strands or fibres that may be bothersome to someindividuals, especially if they have dental or oral health issues. It's worth notingthat many of these cons can be mitigated by mindful consumption, properstorage, and considering individual circumstances and preferences. As always,if you have specific dietary concerns or health conditions, it's advisable toconsult with a healthcare professional or registered dietician for personalizedguidance. All the aboveQA are from Quora website on 28--05- 2023. Quora answers need not be 100% correct answers . Compiled andposted by R. Gopala krishnan, former ITS, on 29-05-2023 -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/thatha_patty/1929109271.2362677.1685282512327%40mail.yahoo.com.
