CULTURAL QA 10-2023-28 All the BELOW QA are from Quora digest to me on 28-10- 2023.
Quora answers need not be 100% correct answers .Compiled and posted byR. Gopala krishnan, on 28-10-2023 Q1 Is itnormal for the indoor unit of a window air conditioner to get hot? Gopala Krishnan,FormerAssistant General Manager 1996-2004 at Department of Telecom (1966–2004)Justnow No.Indoor unit is to blowcool air to room. If it is getting hot, immediate attention oftechnician is required and the Air conditioner unithas to be switched OFF, if it is a normal air conditioner forcooling only. Q2 What is thecourse of current following while all electrical equipment are switched off? A2 Scottie Odom,Former ElectricalDesigner 3 (2015–2022)3y Nowhere.It is simply there,with the potential to go somewhere. That’s what voltage is, the potential of anelectron to get from one place to another. Imagine a ball in your hand.The ball wants to fall to the Earth and has potential energy. Your hand is like the switch,preventing that ball from releasing its energy. If you let the ballgo, it’s like turning on the switch, letting the electron go where there isless potential energy. The only difference is that in an electric circuit, it’sa constant stream of electrons, like a water hose, and turning the switch offis like closing the valve. Q3 What issomething that most people don't know? A3 Venzil Lawrence,BE in Electronics andCommunication Engineering & Computer Science, St. Joseph EngineeringCollege, Mangalore (Expected 2027) Updated Aug 19 MRI machine used inhospitals for medical imaging is something many of you have heard of, but noteveryone knows how it actually works Imagine you're trying to take a peek inside your bodywithout cutting it open… That's where MRI,short for Magnetic Resonance Imaging, comes in. It's like a super cool camerathat doesn't use any radiation like X-rays do. Before discussingthe process let’s understand MRI machine So.. There are four main components of MRI machine.. Magnet -Gradient Coil - Radio frequency coil - Computer System - Structure ofMRI machine Now let’sunderstand it’s working and and process… to understand this let’s start fromthe basics… So.. our bodies are mostly water (almost 60%)… andwater has tiny particles called protons at the centre of each molecule… Structure of watermolecule: These protons love hanging out in the middle ofatoms, like a nucleus…. Now, when you place your body in a strong magnetic field,these protons align with it, just like compass needles pointing north. Ok.. Now a quick burst of energy is sentinto your body, which temporarily shakes up the hydrogen atoms inside….. When the radiofrequency pulse ends, the hydrogen atoms goback to their normal setup….As they do this,they release signals.These signals hold info aboutwhat's nearby… It'slike they're sharing secrets, and those secrets help create images of yourbody's insides. Once the hydrogenatoms send out their signals, special coil called “Gradient coil” in the MRI machine act like powerful ear,catching those signals.. Thesecoils help make the signals super clear and help create detailed images ofwhat's going on inside you…. It's like having abunch of microphones that can hear every little sound the atoms are making. Now, the detected signals are sent to a computer,which processes and reconstructs them into detailed images… And that's thewhole process of how MRI works... Q4 What arethe most mind-blowing facts about the human brain? A4 Akbar Zaib, PhD in Neuroscience,University of Tartu (Graduated 2022)3h Do you want to knowthe mind-blowing facts about your brain? Now, picture your brain as your ownsilent hero, quietly and efficiently working behind the scenes every day. It'sastounding how this 'supercomputer' in your head plays a vital role in yourdaily life, even when you're not aware of it. Now, let’s diveinto the eight mind-blowing facts of the human brain that you really shouldknow. Human insight: Your brain defines you as a human. It helps youunderstand how you and others feel. It makes you feel about yourself and thepeople around you and guides your interactions with the people around you. Instant decisions: Have you ever touched something hot andpulled your hand away before you even realized it was burning? That's yourbrain making split-second decisions to keep you safe. Learning machine: Every day, your brain is like a sponge,soaking up new information. Whether you're learning a new skill, a recipe, oreven a song, it’s your brain's ability to remember and use what you learn. Dream factory: At night, while you're sleeping, your brain ishard at work creating vivid dreams. It's like having your private movietheater, where your brain produces exciting and sometimes puzzling stories. Master of senses: Your brain processes everything you see, hear,touch, taste, and smell. It helps you understand and react to the world aroundyou. Memory bank: Your brain is the memory bank of your body. Itstores a vast amount of information. It's so powerful that if your brain were acomputer, it could store thousands of movies. Problem solver: When you face challenges or problems, your brainsteps up to find solutions. Infinite potential: The amazing thing is that your brain cankeep getting better. The more you use it, the sharper it becomes, and it canstay sharp throughout your life. So, here you havesome of the most mind-blowing facts about the human brain. Let's acknowledgeand appreciate it for its remarkable capabilities. Q5 Is a sealion an actual type of lion? A5 Alex Cooper, Animal enthusiast20h Ah, you’ve stumbledacross the typical trickery of animal names. Ina word, no, sea lions are not lions. Here aresome other animals that aren’t lions: Lionfish - it’s not a lion; it’s a fish Lion’s manejellyfish - it’s not a lion’s mane; it’s a jellyfish Golden lion tamarin - it’s not a lion; it’s a monkey,and it’s too pure for this world. It’s not a fruit, either. (Oops, that’stamarind.) Let’s not limit ourselves to lions — it may surprisesome people that neither tiger beetles nor tigersharks are actual tigers, either. Leopard seals, likewise, are notactual leopards. And don’t even get me started on spider monkeys. To be fair, usuallythe second part of the animal’s name is what it really is, so the sea lion isan outlier (outlion). What kind of animal is it, then? It’s a pinniped, whichmeans flipper-footed. Pinnipeds include the walrus,the ‘true seals’ or earless seals, and the eared seals. Essentially they areall just different kinds of seals, so this is going to be a very seally answer. Can you guess which one sea lions belong to? Yes, if you lookclosely you’ll see a little external ear. ‘Earless’ seals have small holes forears. The eared seals arealso known as otariids, in the family Otariidae. (Not to be confused withotters — I think the similar-sounding name is just a coincidence.) The otariidsinclude fur seals, too, which are much more closely related to sea lions thanthe ‘true seals’ (grey seal, harp seal, weddel seal, etc). In fact, one furseal (Northern fur seal) is more closely related to sea lions than other furseals. Eared seals havelarge flippers with which they can walk on land, while true seals flop aroundamusingly on their bellies. Why the name ‘sea lion’? Well,they’re not closely related to cats at all — they’re closer to canines thanfelines, but not that close to dogs. It’sthought they evolved from a terrestrial (land-based) bear-like ancestor.[1] On the otherflipper, they are voracious hunters of fish and cephalopods, there’ssignificant sexual dimorphism, and males of some species have distinctive‘manes’ a little like a male lion. While true seals are also efficient predators, they tendto look a fair bit cuter (leopard seals excepted): Big male sea lionsare loud, aggressive, and look like they could KILL you up. And indeed theycould. (Male & female Steller sea lions with human for scale.) Maybe ‘lion’ isn’t such a bad name for them. -- 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/2103905319.145848.1698497802155%40mail.yahoo.com.
