Q1 and Q4 are repeated KR IRS 30124 On Tue, 30 Jan 2024 at 09:56, Narayanaswamy Sekar <[email protected]> wrote:
> > > ---------- Forwarded message --------- > From: 'N Sekar' via iyer123 <[email protected]> > Date: Tue, Jan 30, 2024, 9:17 PM > Subject: [iyer123] Re: [KeralaIyers] CULTURAL QA 01-2024-30A > To: <[email protected]>, Iyer <[email protected]>, > Gopa4411 <[email protected]> > > > Thanks. > > Like you said Q 1 answer was very interesting and informative. > > Q 5 joke was very good. Hearing it for the first time. > > N Sekar > > Sent from Yahoo Mail on Android > <https://mail.onelink.me/107872968?pid=nativeplacement&c=Global_Acquisition_YMktg_315_Internal_EmailSignature&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000604&af_sub5=EmailSignature__Static_> > > On Tue, Jan 30, 2024 at 8:33 PM, 'gopala krishnan' via KeralaIyers > <[email protected]> wrote: > > *CULTURAL QA 01-2024-30A* > > *All the BELOW QA are from Quora digest to me on 30-01-2024.* > > * Quora answers need not be 100% correct answers * > > *.Compiled* *and posted by R. Gopala krishnan, on 30-01-2024* > > *Q1 How did talking birds like parrots evolve?* > > *A1 Silk Road, AI Expert Mon* > > *First of all, let's get one thing straight: birds are **dinosaurs. **Yep, > you heard me right.* > > *Birds are the living descendants of a group of small carnivorous > dinosaurs called theropods that lived in the Late Jurassic period, about > 150 million years ago.* > > *These theropods had feathers, but not for flying**. They used them for > insulation, camouflage, display, and maybe even gliding.* > > *One of these feathered theropods was Archaeopteryx, the first known bird.**It > had wings and a wishbone, but also teeth and a long bony tail. It was a > transitional form between reptiles and birds.* > > *How did these theropods become birds? And how did they learn to sing?* > > *Well, it turns out that there are two main factors involved: natural > selection and sexual selection.* > > *Natural selection is the process by which organisms adapt to their > environment and survive better than others.* > > *Sexual selection is the process by which organisms attract** mates and > reproduce more than others.* > > *Natural selection favored theropods that could fly, because flying gave > them an advantage in escaping predators, finding food, and exploring new > habitats.* > > *To fly, they needed lighter bones, stronger muscles, and more efficient > lungs and hearts.They also needed more complex brains to coordinate their > movements and navigate in three dimensions.These changes made them more > bird-like over time.* > > *Sexual selection favored theropods that could sing, because singing gave > them an advantage in attracting mates, defending territories, and > communicating with each other.* > > *To sing, they needed a special organ called the syrinx, which is located > at the base of the trachea (windpipe).The syrinx can produce complex sounds > by vibrating thin membranes that are controlled by muscles.* > > *They also needed more flexible brains to learn and** memorize songs and > sounds. These changes made them more vocal over time.* > > *Understand, not all birds can talk like parrots**. That's because > parrots belong to a group of birds called psittaciformes, which have some > unique features that make them especially good at vocal learning.* > > *Vocal learning is the ability to modify sounds based on** experience and > social interactions.* > > *It is rare in animals and only found in a few groups, such as humans, > whales, dolphins, elephants, bats, and some rodents.* > > *Parrots have a large brain relative to their body size, and a* *high > density of neurons in their forebrain.They also have a direct connection > between their motor cortex (which controls movement) and their brainstem > (which controls the syrinx).This allows them to precisely control their > vocalizations and imitate sounds they hear.* > > *Parrots also have a long lifespan and a complex social structure, which > give them more opportunities to learn from each other and from humans.* > > *MY NOTE- Very informative answer**.* > > *Q2 Do you know a joke about an elderly couple?* > > *A2 Andras Lu, Sep 12* > > *An elderly couple had dinner at another couple's house, and after eating, > the wives left the table and went into the kitchen. The two gentlemen were > talking, and one said, “Last night we went out to a new restaurant and it > was really great. I would recommend it very highly.”* > > *The other man said, “What is the name of the restaurant?”* > > *The first man thought and thought and finally said, “What is the name of > that flower you give to someone you love? You know, the one that's red and > has thorns.”* > > * “Do you mean a rose?”* > > * “Yes, that's the one,” replied the man. He then turned towards the > kitchen and yelled, “Rose, what's the name of that restaurant we went to > last night?”* > > *Q3 Was Beethoven really blind and deaf? How did he write > music?* > > *A3 Silk Road, AI Expert10h* > > *Beethoven was not blind.** But he was deaf.* > > *He started losing his hearing when he was about 28 years old, which was > around 1798.He noticed that he had trouble hearing high-pitched sounds and > that his ears would ring constantly. He also had severe headaches and > stomach problems.He tried all kinds of treatments, like baths, herbs, > pills, ear trumpets, but nothing really helped.* > > *The cause of his deafness is still a mystery and it got worse over time. > By 1818, when he was 48 years old, he had to use notebooks to communicate > with people**.* > > *He would ask them to write down what they wanted to say, and he would > answer them out loud or write back.* > > *He also wrote down his thoughts and feelings in these notebooks, which > are called conversation books.* > > *By 1824, when he was 54 years old, he was almost completely deaf. He > could no longer hear speech or music normally.* > > *He could only feel the vibrations of the instruments or his own > voice.That's why he had to be turned around to see the applause when he > conducted the premiere of his Ninth Symphony, which is one of his most > famous works.* > > *But even though he was deaf, he never stopped making music.**He used his > memory and imagination to create sounds in his mind.* > > *He also used a special device called a resonator, which was a wooden rod > that he attached to his piano and bit with his teeth.This way, he could > feel the vibrations of the notes through his jawbone.* > > *He also wrote down his music very carefully, using different symbols and > instructions to indicate the dynamics, tempo, articulation, and expression > of the music.* > > *He even wrote down the pitch range of each instrument and voice part, so > that he could make sure they were balanced and harmonious.He composed some > of his best works after he became deaf, like the late string quartets, the > Missa Solemnis, and the final piano sonatas.* > > *These works are very complex and innovative, showing his mastery of > musical forms and styles.They also express his emotions and ideas very > powerfully, showing his struggle with his deafness and his faith in > humanity.Despite his deafness, or maybe because of it, he created some of > the most beautiful and inspiring music ever.* > > *Q4 What is something electrical engineers know that others > don't?* > > *A4 Hitesh Mohan,6 years of experience as an electrical > engineer Jan 12* > > *A fallen power transmission line is extremely dangerous* > > *Whenever we encounter a fallen power transmission line or live wire, > there is a tendency to approach it. Some people mistakenly believe that it > poses no harm as long as they don't touch the wire, but this assumption is > incorrect. * > > *It is always better to maintain a distance of **8m to 10m **from a > fallen power line **because even though you are not physically touching > it, **a fallen power line can still electrocute you.* > > *When a fault or accident occurs in a high-voltage system and if the > overhead transmission line makes contact with the ground, it can create a > voltage gradient in the ground in the form of ripples. As shown below :-If > a person's feet are at different points along this gradient, a potential > difference can exist between their feet.* > > * This potential difference can result in a current flowing through the > person's body, potentially leading to electric shock and death of a person**. > This phenomenon is called as Step Potential* > > *To avoid electric shock when encountering a fallen transmission line, > maintain a distance of 6 to 8 meters from the power line. Alternatively, > keep your feet as close together as possible to prevent the creation of a > potential difference between them.* > > *Never touch or go near an electrical fence:-* > > *If a person comes into contact with a conductive object (such as a fence > or equipment) that is at a different potential due to a ground fault, there > is a potential for electric shock as shown in the above image. This is > called as touch potential. Touch potential is concerned with the voltage > difference between the point of contact and the ground at a different > potential. It may cause severe damage to Your body.* > > *Both Step & Touch potentials are Potential Hazards for the human body.* > > *My note- Though what is told is a simple fact, I don’t recollect studying > about touch potential in the Bsc **study. I don’t know it is fading > memory at 80, what is studio in 20’s. **However we must wear **non > earthing foot wear **and grading potential will not much effect us. > However if we see a bare ware from electric pole has fallen on earth, if > not wearing non earthing footwear,**we must keep our feet as close as > possible. Non earthing footware is a dry footwear and not having any nails > fitted on it. Only pastes. * > > *Q5 What are some funny mathematics jokes?* > > *A5 Sundararajan Seshadri, Love Mathematics6h* > > *I came across this joke a few decades back. Sorry, if it is already > posted.* > > *A technician was given a problem: a nail was driven fully in a wall**. > He had to remove the nail. He scooped the material around the head and got > some hold on the nail head. Using a pliers, he pulled the nail out.* > > *The same problem was given to a mathematician but this time, the nail was > not driven fully in**. The nail head was exposed with some body portion > outside the wall. The mathematician was aware of the technician’s solution. > He thought for a minute and then drove the nail fully in. And he declared: > ‘Now the problem has been converted to a standard one the solution for > which already exists!’* > > -- > On Facebook, please join https://www.facebook.com/groups/keralaiyerstrust > > We are now on Telegram Mobile App also, please join > > Pattars/Kerala Iyers Discussions: https://t.me/PattarsGroup > > Kerala Iyers Trust Decisions only posts : https://t.me/KeralaIyersTrust > > Kerala Iyers Trust Group for Discussions: > https://t.me/KeralaIyersTrustGroup > --- > You received this message because you are subscribed to the Google Groups > "KeralaIyers" 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/keralaiyers/586101794.1754730.1706626983520%40mail.yahoo.com > <https://groups.google.com/d/msgid/keralaiyers/586101794.1754730.1706626983520%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups > "iyer123" 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/iyer123/1231584666.2256240.1706629666171%40mail.yahoo.com > <https://groups.google.com/d/msgid/iyer123/1231584666.2256240.1706629666171%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > > -- > 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/CABC81ZcNWNcPURh35GOEVrF-FapLeZDdJ0Ev0vZ2_gA9aJeC9A%40mail.gmail.com > <https://groups.google.com/d/msgid/thatha_patty/CABC81ZcNWNcPURh35GOEVrF-FapLeZDdJ0Ev0vZ2_gA9aJeC9A%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. 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