CULTURAL QA 11-2022-28 BEING A COMPILATIONTHERE MAY BE ERRORS
Dear friends, I select QA from Quora after reading theanswer thoroughly. I check the person answering and his qualifications toanswer and select informative and interesting ones to post in a group. Often Itry to add the qualifications, but found it almost impossible unless heincludes. This is inthe context of responses by one member totally blaming the person answering. Onecan make addition or remark on the answer. Gopalakrishnan, 28-11-2022 Q1 Is therea reason why there are no railways in Australia? A1 Nicholas Stone, Lifelong interest in trains. Nov 10 Australia has a comprehensive railway network of over32,000 km with several noteworthy features. Owing to colonialdevelopment and lacking co-ordinated UK government oversight, there are three main trackgauges. The narrow 1,067mm gauge is mainly used in Queensland and WesternAustralia. Most of the broad gauge 1,600 mm is in Victoria. While the standard1,435mm gauge is mainly used in New South Wales. There are no commercial passenger train servicesin Tasmania. Australian has two transcontinental railways. Thelonger - running east to west did not have through services until 1970,following decades of conversion to the standard gauge. The other north to southstandard gauge line was finally completed in February 2004. Other earlierconversions all now connect Sydney, Melbourne, Adelaide and Brisbane withstandard gauge tracks. There are daily state owned and operated interstatepassenger services between Sydney to Brisbane and between Sydney to Melbourne.Elsewhere, instate passenger services are privately owned and operate, and theyare either once or twice each week. Overall, Australia rail operations are mainly freightrather than long distance passenger services. Commuterpassenger services radiate from Brisbane, Sydney, Melbourne, Adelaide andPerth. Passengertrain top speeds seldom exceed 160 km/h are often slower.A notable faster train is the Queensland government owned and operated TiltTrain. From Brisbane, there are four departures each week to Cairns, coveringthe 1,681 km in 24 hours and 45 minutes - average 68 km/h. TheQueensland Tilt Train has electric and diesel versions.Trains start in Brisbane and operated along the narrow 1,067 mm track toRockhampton (electric services) or further north to Cairns (diesel). Q2 What wasincredibly expensive twenty years ago, and is completely worthless today? A2 David Moe, Former Business Analyst atOil and Gas Industry (1970–2007)Wed I remember working for an oilcompany who had half a dozen minicomputers we took out of our oil fields thatprobably cost $100,000 apiece. They were 10 years old and wetried to give them to universities. They refused to accept them even if we paidthem to take them. I tried to explain it to management: It is Moore’s Law:The power of a computer is doubling every 18 months. The product cycle is about3 years. After 3 years, the manufacturer brings out anew one that is four times as powerful, its replacement comes out after 6years, and it is 16 times as powerful, and the next generation comes out after9 years and it is 256 times as powerful. Your $100,000 computer is nowworth 256 times less, or about $390. And, in fact, you can replace itwith a $390 microcomputer. However, the universities will not accept it because ittakes up too much space, draws too much power for their buildings, needs extraair conditioning, and costs too much in electricity,so now it has a negative net worth. Our lab techs said they could use themounting frames and the power supplies for their test rigs, but we might aswell throw the rest of the equipment away. In myfirst IT job I operated a multimillion dollar supercomputer that took up half afloor.It required two gas turbine generator units on the roof to power it and twomassive air conditioners to cool it. Nowadays the average smart watch has more computingpower and is more useful to have. My note- Now many keep two laptop and memorydevices or more for home use, for the reason often the efficient laptop has no spares to set rightmother board defects even with in fiveyears. Q3 What areten truths everyone should accept in life? A3 Shaunak Bhattacharjeee, SoftwareEngineer | Traveller | Foodie Nov 20 1.Parents are not going to be forever in your life. Cherish the limited time youhave with them and try making them proud. 2. Your external appearance matters.Because nobody falls in love with your personality at first sight. 3. Always prioritise yourself first. Be a littleselfish, because at the end of the day, everybody caresfor themselves only. 4. Travel whenever you get an opportunity.Travelling unlocks new spheres and you get to learn a lot when you meetdifferent kinds of people. 5. Smoking andalcohol are unnecessary habitsthatyou pick up in your teens. They have no benefits and cause more damage. Thereare other ways to look cool, but picking up bad habits isn't one of them. 6. Respect isn'tgiven; it is earned. Your actions should commend respect, not your position,status or age. 7. Forgive people,but don't forget what they did. Forgive because it reduces theburden in your heart, but don't forget what they did to avoid going down thesame path. 8. In yourtough times, nobody will stand beside you and your money is all that you've got.Hence, earning money and saving it for the future is quite important. As yougrow up, you'll realise that money is required in every sphere in your life andwithout it, nobody will value you and there's nothing you can do without it. 9. Never be overconfident or arrogant about yourself. Youmight think yourself to be the best at something, butthere's always someone better than you. Be humble, stay connected to yourroots. 10. There isnothing called Veg Biryani. It is an oxymoron. Biryani without meat is pulao;end of discussion. My note- Many forget item no.6. Thosewho were in class 1 service lose their gazetted rank, the day they retired. There is no preference to themother than senior citizen. Q4 Which ROis best for drinking water? A4 Gopala Krishnan, Former AssistantGeneral Manager 1996-2004 at Department of Telecom (1966–2004)Just now More than the brandof RO system, the TDSvalue of the water in one person’s home is more important. If borewell water is in the home, and TDS value is 500, RO water cannot be about 50. If bore well water is in the home, and TDS value is 200,RO water can be about 50. Further, in mostcases water from overhead tank is connected to RO system. I have observed the TDS value considerably low if over head tank iscleaned at least once a quarter, TDS value will be considerably low aftercleaning overhead tank. RO system has to be periodicallyserviced and parts replaced for better value of TDS Q5 What willhappen to the Shatabdi Express when the Vande Bharat Express will replace them? A5 Prashant Tiwari, Indian RailwaysEnthusiast Thu This is a hot topic these days as timings ofVande Bharat trains is clashing with few shatabdi trains running on theirroute. Recently, thissenario was noticed on Mysore-Chennairoute where the timings of both the trains were clashing and raised a questionin everyone’s mind. For now, Railways has fixed the clash by rescheduling theShatabdi Express timings but the question remains same. Is railways going to replace all Shatabdi trains? Or Railways will operate both Shatabdi & Vande Bharattrains simultaneously? I will try toanswer both the questions together & share what Railway Minister said on this topic. According to the railway minister, we aregoing to operate both the trains for now and there is no plans to eliminateshatabdi trains. Myopinion is that they will slowly discontinue or replace Shatabdi rakes in nextfew years on some routes where demand for Vande Bharat trains will pick up. I remember theinitial days when T-18 was called a replacement of Shatabdi trains whereas T-20was called a replacement of Rajdhani trains…. My note- There is no train between Chennai andBangalore between 8 AM and 1.30 PM. Commuters are more. If satabdi is run by 10-11 AMto Bangalore it might be very useful forcommuters. Q6 Ifuniversal healthcare is so cost effective, why has the NHS costs continued torise while the population growth has continued to decline? A6 Claire Jordan, Worked at NationalHealth Service (NHS)Nov 8 The onedisadvantage of universal healthcare is that people live a lot longer - and oldpeople are expensive.Also more and more treatments come along which are good and which the NHSwishes to be able to offer, but which are initially very expensive until theirmanufacture becomes routine. For example, the NHS is now offering gene treatments forsome childhood genetic disorders which cost two or three million pounds perpatient. It’s worth it because it appears to be acomplete cure and so vastly improves the patient’s life, and life expectancy.But the treatment has to be tailored for each patient, so until we find abetter way to automate that, it’s going to be colossally expensive. My note- There isa hard truth in what is told as old age.In my boyhood days a person aged about 65 was old ageperson, and death by that age was very common andtold as old age death..Now persons live beyond80, with many health problems, getting life extended by medicines, and surelyburden even to governments if they were in government service, by giving monthly pension whichamounts to crores. There is a base, part of salary was notpaid and kept for pension but for life expectancy of about 10 years orso . Q7 Why do weuse 60 Hz? Why not 10. or 50,000? A7 Rustam Muginov, Nov 20 Laws ofphysics. >From one size, thehigher the frequency - the higher would be energy loss in >the electric powergrid. Inductive resistance is directly depends on the >frequency: Electrical reactance - Wikipedia so it seems better to use as low frequency as possible, and10 Hz seems much better for long-range electricity transfer. >From another size, the efficiency of electric transformeris higher when >frequency is higher: Transformer -Wikipedia So if you use verylow frequency then lets say instead of this: you’d need something like thisLvery large transformer 50–60 Hz is acompromise between the electricity loss in long distance power grid andtransformers efficiency/size. On theaircrafts, for example, the size/mass of the transformers is much moreimportant than efficiency of power lines - this is why airplanes using 400 Hz. My note- A very informative answer. Q8 What isthe most economical RO water purifier? A8 Girish Kumar (गिरीशकुमार),Studiedat St. Francis De Sales High School Oct 19 Many people purchase water purifier just to get rid ofharmful bacteria. Yes, water purifier definitelyextricates bacteria but what people forget is about the essential minerals. Yes, even essential mineralspresent in water will be extracted along with bacteria. That's the truth. I have purchasedthis on August, 2021 ... It's been an year and I can see drastic changes in mybody such as hair loss, weakness, sudden leg cramps. This is because most ofthe human body is water, with an average of roughly 60%. So the amount of water intakeper day is directly proportional to your health. I am not againstmanufacturing companies but I am against the idea of initiating RO+UV becauseit can be any company, but the extrication process remains same. Now if you questionthem " How about the essential minerals, even they are filtered out alongwith bacteria right?".... They will tell you that "minerals will be added inthe last chamber so it's fine. You can consume how much you want. " But fact is thatartificial minerals are not at all healthy for your body. You are just drinkingplain water without minerals. Scientists are really working on it and this isnot a small issue. World Health Organization (WHO) declared this 👇: Consuming reverse osmosis (RO) water for even a few monthscan create serious side effects, warns WHO. It has been scientificallyconfirmed that drinking reverse osmosis water causes more bodily harm andfaster than most contaminants found in tap water. Reverse Osmosis (RO) systems to purify water are in useextensively. Besides the aqua companies that market RO water personal waterpurifiers are also preferred by many households.RO system off course removes water impurities. But they also remove 92-99% ofbeneficial calcium and magnesium!RO filters strip away calcium, magnesium andother necessary nutrients from water. In fact, developed countries like USA, Germany andRussia have already shunned RO systems for drinkingwater, choosing activated carbon, instead, for purification. In India and othercountries, though, RO systems, both industrial and domestic, continue toflourish, as there are no regulations in place to check this. “Boil water and be safe” RO water whichdoesn’t contain enough minerals, when consumed, leaches minerals from the body.This means that the minerals being consumed in food and vitamins are beingurinated away. Less minerals consumed plus more minerals being excreted causesserious negative side effects and big health problems. In ascientific study performed to see if minerals consumed in food can make up forthe lack of minerals in RO water, scientists concluded that reduced mineralintake from water was not compensated by their diets. Low-mineral waterwas responsible for an increased elimination of minerals from the body.A membranethat acts as a barrier between impure water and pure water is used by waterpurifiers RO. Impure water molecules do not penetrate the membrane. My note-Boiling water doesnot remove hardness and sour taste of water from wells instates like Tamilnadu. ROsystem removes impurities, sour tasteand some % of other items, as far as my informationgoes. I am not able to agree fully to the answer. I am using RO water in Chennai or the last 22 years. I have nohealth problems and my family members also Q9 Howdoes RO purify water? A9 Swapan Kr. Mukherjee, Graduates inTrending Topics (online) & Internet of Things (IoT), The University ofBurdwan (Graduated 2002)2y Membrane molecules are much smaller compared withgerm and bacterial molecules. Thisensures they will not be able to pass through the RO membrane. Then, they arefiltered out of the system. Waterpassage occurs by adding high pressure. This is called a system of reverse osmosis. It is the exact opposite of the osmosis that happens when freshwater joins the seawater. Therefore it is known as themethod of reverse osmosis. My note- Excellent answer with picture of ROsystem. Q10 Candogs eat raw meat? A10 Lucia Garcia, Worked at Hospitals Nov18 Dogs and wolves share many similarities and can eatraw meat, after all, they both descended from a common ancestor. A dog'sdigestive system is so powerful that it Produces Up to 100 Times the Amount ofAcid than that of a human stomach.In addition to helping break down and digestfood, stomach acid has a strong bactericidal function. Studies have shown that the vast majority ofparasites and bacteria cannot survive in the highly acidic environment of adog's stomach. Likewolves, raw meat is a tasty and nutritious food for dogs, because cookingcauses the loss of some water-soluble vitamins in the meat, such as B vitamins,vitamin C. Some peoplebelieve that dogs that eat raw meat have more energy, shinier coats, and healthierskin and teeth. All the above QA are from Quora website on 27-10-2022 Quora answers need not be 100% correct answers . Compiled and posted by R. Gopala Krishnan,former ITS, 79 years, on 28-11-2022 -- 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/1626993789.3601579.1669600230724%40mail.yahoo.com.
