CULTURAL QA 01-2022-25 BEING A COMPILATION THERE MAY BE ERRORS
Q1 What type of food should we eat to increase our stamina? A1 Lucia Garcia Worked atHospitals Sat For athletes, the most important thing is how to increase stamina, orquickly eliminate fatigue and restore physical strength after exercise. Once oxygen enters the body, itenters the bloodstream through the alveoli to provide oxygen to cellsthroughout the body. When food enters the body, it is converted into glucose, which isoxidized with oxygen to produce the energy the body needs. When exercising, the body needs a lot of energy and consumes a lot ofoxygen, which is about 30 times higher than that at rest. Oxidative reactions in the body also produce large amounts of freeradicals, especially after prolonged exercise. Free radicals will attack cell membranes and glands, killing variouscells, resulting in muscle fatigue and decreased physical strength. Therefore, only by removingharmful free radicals can we eliminate fatigue, increase stamina and restorethe vitality of the body. These 12 foods have strong antioxidant capacity, can effectively scavengefree radicals, accelerate musclerepair, and increase the body's stamina and endurance: Blueberries, strawberries, dark chocolate, walnuts, turmeric, broccoli,green tea, tomatoes, garlic, mulberries, pomegranates, beans. Q2 What are unique things to do in India that you cannot do inother countries? A2 Samantha Kannan visitedIndia nine times Sun I can wear sarees everywhere every day and no one will scold me forappropriating or give angry faces. I canspend time with family who lives here. I can sit on the back of a bike with fresh wind in my face rather thanstale harsh AC blowing in a car. If I get tired while walking somewhere, i can simply find a nearby autoto help complete my journey. I can have 100x better versionsof American fast food brands. I can have fresh high quality Indian food anytime, compared to a simplealoo gobi dish costing $15+ in the US. Sri Krishna Sweets. Noelaboration required. I can practice my Tamil and build fluency through immersion. I can have fresh fruits on a whim. Staring at tree branches trying tofind the perfect guava, then watching Kannan take the giant stick/hook to pullit down is a great afternoon time pass. Before covid, I also quite enjoyed traveling to enjoy the nature andarchitecture of various places. It is unmatched. Q3 What is the cause of the formation of identical andnon-identical twins in a woman's womb? A3 Claire Jordan Degree inbiology and folklore; programmer, shop owner, secretary on newspaper Fri Non-identical or “fraternal” -two separate eggs, eachfertilised by a separate sperm. The babies are no more similar, genetically, thansiblings born at different times. Identical - one egg fertilised byone sperm generating one zygote, which then splits in two. The babies aregenetically identical, aside from any mutations which were acquired after thesplit. Conjoined or “Siamese” twins -one egg fertilised by onesperm generating one zygote, which then starts to split in two but thesplit isn’t complete,leaving them sharing part of their bodies. Semi-identical - one eggfertilised by two sperm, causingthe egg to split into two zygotes, which are geneticallyidentical on the mother’s side, aside from any mutations which were acquiredafter the split, but on the father’s side are no morerelated thansiblings born at different times. Q4 Does fluoride stay in the bones forever? A4 Ken SaladinEmeritusprofessor of Biology Fri No; like other minerals, it’s continually exchanged between the bones andblood, excreted from the body, and replaced by ingestion. I found a study of guinea pigs that were provided with fluoride-enrichedwater while the incorporation of fluoride into the bones was traced, and thenits elimination from the bones after fluoride was withheld. The authors calculated from theirdata that it should take about 4 years to be fully eliminated from the bones ifno more was ingested. They observed no toxic effects on the animalsand no effect on the physical properties of bone.[1] However, another study estimates the half-life of human bone fluoride to be much longer—20years (Baud et al. 1978 cited by the National Academies of Science[2]).That is, every 20 years the level of bone fluoride woulddecrease by 50% of what it was at the beginning of a 20-year period ofmeasurement. The National Academies book estimates the average American bone fluoridelevel—acquired from fluoridated drinking water—to be 4,000 to 5,000 mg perkilogram of bone ash (bone without its water). At the lower end, that would beequivalent to about 2,240 mg/kg of bone wet weight, the bone tissue in itsnatural state in the body. The level will vary significantly, though, accordingto a person’s age and how much fluoridated water they consume. But if we suppose a 20-year-old who’s been drinking fluoridated wateruntil then and had 2240 mg of fluoride per kilogram of bone wet weight; whothen stopped drinking fluoridated water the rest of their life; assume the rateof fluoride excretion to be uniform throughout life, and the half-life of thisfluoride to be 20 years, then we could expect the bone concentration to be (inmg/kg) 1120 at age 40, 560 at age 60, 280 at age 80, and 140 at age 100 if theylive that long. In other words, once it’s there, it sticks around for a long time, it’shard to get rid of, and it’s very unlikely to be all gone within anyone’s lifetime. Q5 What are some of the greatest innovative ideas? A5 Muhammad Irfan DigitalMarketer Jan 8 My personal favorite has alwaysbeen the Toilet’s U-Bend It’s so genius and does its job ever so perfectly. It creates a watertightseal (sorry, I had to) between the main sewerage pipe and the opening in yourwashroom which blocks all sort of hazardous and extremely smelly odors. I’ve not met enough people whoappreciates this awesomeness. Q6 Would it be fair/accurate to say that a fetus is not acomplete and conscious human being, until it takes its first breath outside ofthe mother's womb? A6 Claire Jordan Degree inbiology and folklore; programmer, shop owner, secretary on newspaper Jan 19 Not really. Humans aren’t “complete” in the sense of being fullydeveloped until about 25.It’s fair imo to say it’s not a human being until its brain is developed enoughto be aware of stimuli, which seems to be around 20 weeks, but the idea thatit’s not human until it’s born and breathing is a religious idea, not abiological one. Q7 Should a hot water heater be raised off the floor? A7 Miguel, former Fire fighter/EMT Answered Jan 18 Fire code requirements dictate at least in most of the US the placementof water heaters IF they are GAS. So a water heater in a closet or out in the open in a garage isrequired to be up off the floor to prevent possible explosion from gas fumesleaking from a car or leaking from solvents or other items stored in garages.Inside the house a gas water heater does not have to be elevated though I haveseen many doing house inspections- the plumbers get to charge for more labor toinstall one on a platform. Electric water heaters do not require elevation offthe garage floor. My note- In India electric andgas water heaters are installed above 6 feet from floor level. Q8 Theoretically, if your blood suddenly froze while you werestill alive, what would the effects be? A8 Mats Andersson B.Sc, M.Sc from Uppsala University Sat If it “froze” in the sense of becoming totally immobile, the blood flow through the brainwould stop. Unconscious in ten seconds, dead in two minutes. If it “froze” in the sense of lowering its temperature so much it becamesolid, instant unconsciousnessbecause you would disrupt many cells in the brain—it would be likesmashing it with a large sledgehammer. Death might technically be a few secondslater, but it’s completelyirrecoverable, because lots of cells in your body (including thebrain) now have ice crystals piercing them and they’re not actually cellsanymore, just some sort of organic mush. Q9 What did the Europeans smoke before the discovery of Americaby Columbus? A9 Matt Riggsby MAArchaeological Studies, Boston University Dec 30 Very little, bordering on nothing. Smoking, as a social habit orpersonal recreation, simply didn’t exist. On occasion, a doctor might recommend that a patient inhale the smoke ofsome burning plant—and, yes, cannabis, which originated in Central Asia, mightbe one of those plants—but it was hardly widespread. The importation of tobacco effectively created thehabit of smoking in Europe. Q10 Why is iron available abundantly in the universe? A10 Mats Andersson M Sc. inPhysics & Computer Science, Uppsala University (Graduated 1991)Jan 12 Because the iron nucleus is, ina manner of speaking, at the bottom of an energy well. When you put two hydrogen nuclei together, they fuse and give off energy:the energy of two protons bound together is lower than that of two protons ontheir own. If you add another proton, you get lithium, and some more energy.(Neutrons complicate the actual picture a bit, but essentially, this is how itworks.) This goes on, givingyou progressively less energy when you add protons, until you reach iron.From there on, you need to add energy when you add more protons. Or if you lookat it from the other direction: if you have a cobalt atom and peel off a proton, you get iron and someenergy. >From hydrogen to iron, you get energy out by fusion—putting atomstogether. >From iron and up to uranium (the heaviest element in nature, lookingat the >nucleus), you get energy out by fission—splitting atoms apart. As to why this is so, that’s acomplicated combination of the strong nuclear force and the electromagneticforce. The strong nuclearforce pulls protons together, the electric charge of protons push them apart,neutrons isolate electric charge and adds to the strong nuclear force. When youput it all together, it works out as I described above. Bottom line—iron atoms are themost stable atoms: when youhave iron, you need to add energy to turn it into anything else; if you haveanything else, turning it into iron will release energy. Q11 Is it true that hunger arises only from an emptystomach? A11 Larry Isaacs FormerGeneral Surgeon (1993–2017)Jan 19 No. One of the symptoms indiabetes is polyphagia (eating a lot), inadequate insulin keeps sugar out ofyour cells and it keeps increasing it in the bloodstream.(hyperglycemia) Even with a full stomach they’re hungry, because their cells arestarving. Q12 Is "rabbit" a species? A12 Claire Jordan Degree inbiology and folklore; programmer, shop owner, secretary on newspaper Dec 21 No. Rabbits and hares form a *family*, the Leporidae. Generally speaking if they are small and/or havecomparatively short legs and ears, we call them rabbits, and if they are large and/or havecomparatively long legs and ears, we call them hares. But it doesn’talways work that way - American jackrabbits are hares, and some domesticatedrabbits are as big as a bull terrier. All the above QA are from Quora website on 24-01- 2022. Compiled and posted by R. 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