CULTURAL QA 04-2023-07 Q1 If humans had evolved315,000 years ago, why did we suddenly start populating rapidly starting a fewthousand years ago?
A1 Claire Jordan, Degree in biology and folklore; programmer,shop owner, secretary on newspaper9h We stopped sleeping with ourbabies at night. Seriously. Breast-feeding every few hourssuppresses ovulation, so you don’t get pregnant again until the first kid isweaned, but if you leave even one gap of more than aboutfour hours between feeds and then have sex bingo, you’re pregnant again. Q2 Do horses stand overwater buckets when they are not thirsty? A2 Sheraz Zaheer, ModernBusiness Logo Design Mar 29 Horses may stand over waterbuckets even when they are not thirsty. This behaviour is often seen in horses that are bored or have nothingelse to do. Some horses enjoy playing with water, and standing over a bucketmay give them something to do. In addition, standing over a bucket of water can help cool a horsedown on a hot day. However, it is important to ensure that ahorse always has access to fresh water, as they need to drink regularly to stayhydrated. Horses can quickly become dehydrated, which can lead toserious health problems. Therefore, it is important to monitor a horse's water intake andensure that they always have access to clean, fresh water. Q3 Why do Indian studentsnot do a part-time job in India, but they do it in foreign countries? A3 Gopal Gupta, Feb 6 I’m pretty sure that, by ‘part-time job’, the questioner means ‘blue collar jobs’. Otherwise, it’s a myth that Indian students don’t do part-time jobs inIndia. I myself worked at a coaching center as a Mathematics tutor for five longyears alongside my Masters’. There are statistics availablewhich shows that almost 37% delivery persons of Swiggy are doing their workalongside their ongoing formal education. It’s not like they don’t want to get into a blue collar part time job. They don’t need to do so. Because, they can earn way more money by justteaching students. Also, in Indian society, people underestimate blue collar jobs. Which isdefinitely not the case while living abroad. Living in a western country like US, you can work at a supermarket hoursfor 6 after college and earn $10- $15 per hour. You can work there without a worry of being noticed by someone who willtell your parents about this and you would have no option left except sleepingoutside of your house that night. Because, people don’t judge there. Your dignity won’t be harmed just because you work at a supermarket. -Why do Indian students not doa part-time job in India, but they do it in foreign countries? Only students from privilegedfamilies don’t do a part-time job in India for very obvious reasons. Q4 If you see a personliving in a high standard house but wearing a normal cost clothes and using ause and throw pen, what would be your thoughts about the person? A4 Ganesh Jadhav, Mar 30 Firstly, unlike many think, I won’t consider it as simplicity.Let meexplain why Once, Superstar Rajnikanth was asked this question in one interview— Is your simplicity because youthink all this wealth and power are maya, illusion? He told I don’t understand why people call me simple. I travel in a BMW car. I stay in a luxuryhouse at Poes Garden. When I traveloutside, I check into 5-Star and 7-Star hotels. You find me simple just because of the dress I wear? So My thoughts would be that this is the importance the person gives to penand clothes financially. He knows what is their worth and doesn’t overspend onthose. Rather, he spends on things that are luxury to him. This is nothing uncommon. Bill Gates wears a $10 WristWatch. Mark Zuckerberg wears the samegrey T-Shirt regularly. Sudha Murthynever wears jewellery. People who are rich know where to spend and where not to. Also, they arenot under the pressure to ‘look’ rich. My note- Many rich people appearsimple though they are rich/veryrich. Some do hard work and physical works also. Q5 How did the Dead Seabecome a sea of salt and not a lake anymore? A5 Steven Haddock, Studiedat York University (Canada)Mar 30 The Dead Sea sits in a rift inthe earth where two tectonic plates are pulling away from each other. Manysuch rifts and deep depressions have lakes in them, such as Lake Baikal andLake Superior. The difference between the Dead Sea and Lake Baikal is that Lake Baikaldrains and the Dead Sea doesn’t. The depression thatforms the Dead Sea is surrounded by mountains so water can’t flow out of thelake. This creates a problem - salt. Salt comes into lakes from the land rivers flow over, dissolved in thewater. Lakes like Superior and Baikal are constantly losing water as fast asthey gain it, so the concentration of salt doesn’t increase. However, all lakes have evaporation, and when you evaporatewater with salt in it, the salt concentration increases. That’s why the oceans are salty -there’s no where for the salt to go. The Dead Sea is VERY salty. Oceans are about 3.5% salt. The water of theDead Sea is 30% salt. That’sbecause the oceans, on the whole, are very cold and can’t hold a lot of salt.The Dead Sea, on the other hand, is in a sub-tropical zone so it’s water isvery much warmer, which allows more salt to get dissolved. And once that salt reaches theDead Sea, it stays there. Forever.As less water flows into the Dead Sea from the Jordan River (it’s only sourceof water - it doesn’t rain a lot) the existing water evaporates - slowly to besure as salt water has a much higher boiling temperature than fresh water. As such, there are massivecrystal salt formations around the Dead Sea now. That salt ain’t goinganywhere. The same is true of the CaspianSea and the Aral Sea, as well as Great Salt Lake Q6 What are somemind-blowing facts related to technology? A6 Digital Services AndProducts, CEO, Motivational Speaker & Online Entrepreneur at Freedom Guider(2019–present)Mar 30 There are many mind-blowing facts related to technology that showcase theincredible advancements that have been made in recent years. Here are some ofthe most fascinating: 1. The first computer mouse wasmade of wood: The firstcomputer mouse was invented by Doug Engelbart in 1963 and was made of wood. It had two wheels and a singlebutton. 2. The first smartphone wasreleased in 1992: The firstsmartphone was called the IBM Simon and was released in 1992. It had a touchscreen, email capabilities, and could run third-party apps. 3. The first website went live in1991: The first website went liveon August 6, 1991. It was created by Tim Berners-Lee and was hosted on a NeXTcomputer at CERN in Switzerland. 4. The world's first webcam wasinvented to monitor coffee: Theworld's first webcam was invented at the University of Cambridge in the early1990s to monitor the level of coffee in the break room. 5. The first 1GB hard drive cost$40,000: The first 1GB hard drivewas released in 1980 and cost $40,000. Today, you can buy a 1TB hard drive forless than $50. 6. The first computer virus wascreated in 1986: The first computer virus was calledthe "Brain" and was created in 1986 by two Pakistani brothers. Itinfected 5.2" floppy disks and spread by making copies of itself. 7. The world's first 3D-printedhouse was built in 2014: The world's first 3D-printed house was built in China in 2014. It took just 45 days to print andassemble the house, which was made of concrete. 8. The first self-driving car wascreated in 1986: The firstself-driving car was created by Carnegie Mellon University in 1986. It wascalled the Navlab and used cameras and sensors to navigate. 9. The first video game wascreated in 1958: The first videogame was called "Tennis for Two" and was created by physicist William Higinbotham in1958. It was played on an oscilloscope and used two knobs to control thepaddles. 10. The world's firstcommercially available computer was the UNIVAC I: The UNIVAC I was the world's first commercially available computer andwas released in 1951. It weighed 13 tons and cost $1.6 million. These mind-blowing facts related to technology demonstrate the incredibleadvancements that have been made in recent years. As technology continues to evolve and improve,it's exciting to think about what the future may hold. Q7 Does it cost moreelectricity to leave a light on for 5 minutes when I leave a room than to turnthe light off right away and turn it back on when I return? A7 Loring Chien, electricalengineer and audiophile for 45 years Wed Incandescent have a rather large inrush current, meaning there is apenalty in power for turning it on. And its more than 20 times the runningcurrent but it only lasts maybe 20 ms or less. So really around a half a secondof time being off more than saves what it takes to restart it. So 5 minutes issaving 4 minutes and 59 seconds of electricity. For LED the overall current ismuch less and the inrush is still there to charge up the power supply, but its also much smaller. I’m virtually certainthat a second of time off is more than enough to save the extra power requiredfor starting it. Again, 5 minutes off is saving 4 minutes and 59 seconds ofelectricity My note- The cost of wear and tear of switch in switching on and OFF LEDbulbs, tubes, latest fans is much more than keeping them ON for short durationswhen not required. Q8 What is costly, making 1km of a national highway or a railway track? A8 Prashant Tiwari, IndianRailways Enthusiast Updated 3y It is exciting to know whether building 1 km fourlane national highway iscostly or 1 km of railway track. National Highways Authority ofIndia (NHAI) estimate the average cost of building fourlane highways at Rs 8-9crore per km andsix-lane highways at around Rs 14 crore per km, inclusive of land costs. whereas Construction of one kilometer of normal railway track costs around 10–14crores whereas construction of one kilometer of high speedrailway track will cost Rs 100-140 crores. Constructing one kilometre of metro track costs 60–70 crores. Note: Construction cost of bothhighways and railway tracks depends on various factors and it may vary time totime and place to place. Q9 What is something thathappens only in medical colleges? A9 Sagar Singh, Lives inGujarat, India (2019–present) Updated Jan 25 You will experience the highest of highs and lowest of lows at the sameplace. You will seestudents partying whole night (like there's no tomorrow). And the same bunch of people won’tcome out of their rooms for weeks (during the time of internal exams and finalproffs.) Dissection hall is the playground for most of the romantic stories. This is the placewhere girls and boys approach each other. In the initial few weeks, every one is keen on dissecting thecadaver. But after a month or so, you willmostly see students chit chatting in the dissection hall. This is the placewhere most of the love stories blossoms in first year of MBBS. Your non medico friends will call you in the middle of the night forasking you about sex related tips, best contraceptive measures, safe period tohave sex and so much more. For me, this is the funniest part of being a medico. Some medicos do have decenthandwriting. :) “ If people get to see how MBBS students live and enjoy in their hostels,they will never come to them for treatment. “ I read this somewhere and I completely agree with this.You will see us using abusive words whenever we are with our friends, but weact super decent when we are in our college or hospital. We keep ourprofessional and personal life separate from each other. Friends that we make here stay with us for lifetime. They will no longerremain just your friends, they will become a part of your family. MBBS is a great leveller. You will see strongest people breaking down, the brightest kids failing,the dumbest kids scoring highest marks and what not. No matter who you are,this field of medicine will make you humble. My note- I enjoyed the reality written. Q10 What are the 7 most commonRO water purifier issues and solutions? A10 Amit Kumar, StudiedScience (Graduated 2010)Mar 31 Reverse osmosis (RO) water purifiers are an effective way to removeimpurities from water and provide clean, safe drinking water. However, like anyappliance, they can sometimes experience issues. Here are seven of the most common RO waterpurifier issues and solutions: Slow flow rate: If the flowrate of your RO water purifier isslow, it could be due to clogged filters or a malfunctioning membrane. Tryreplacing the filters and membrane to see if that resolves the issue. Leaks: Leaks can occur atvarious points in the RO system,including the fittings, tubing, and membrane housing. Check for loose or damaged connections and replaceany faulty parts. My note- Since SALTY water flowing except at outlet, the PVC cable can become rusty. The jointsare made in a L connector or straight connector just by pushing in and pullingout. It is a weak point. Goodservice people replace them in EVERY VISIT. Foul taste or odor: A foul taste or odor in your RO water could be due toa build up of contaminants in thefilters or membrane. Try replacing the filters and membrane, and make sure to clean and sanitizethe system regularly. Low water pressure: Low waterpressure can be caused by clogged filters or amalfunctioning pump. Try replacing the filters and pump to see if thatresolves the issue. Wastewater production: RO systemsproduce a significant amount ofwastewater as part of the purification process. If you are concerned aboutwater wastage, you can install a permeate pump to improve efficiency. My note- Waste water is a mis-norm.It can be called outlet water. It can be used for watering plants and washingvessels, floors etc. Low pH levels: If your RO waterhas a low pH level, it could bedue to a build up of carbon dioxide in the system. Try flushing the system with fresh water to removethe CO2 and improve the pH level. My note- Periodically cleaningover head tank, and replacing filters will give excellent pH value. I am feedingwater from borewell, salty, but output water is very good with pH value between12 and 15. Noisy operation: A noisy ROsystem could be due to amalfunctioning pump or motor. Try replacing these components to see if thatresolves the issue. In general, regular maintenance and replacement of filters and membranescan help prevent many of these issues from occurring. Consultyour RO system's manual or a professional technician for specific instructionson maintenance and troubleshooting. All the above QA are from Quora website on 06-04-2023 Quora answers need not be 100% correctanswers . Compiled and posted by R. Gopala Krishnan, 79, former ITS on 07-04-2023 -- 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/2079605948.355006.1680833467746%40mail.yahoo.com.
