CULTURALQA 11-2023-19

All the BELOW    QA are from Quora DIGEST to me  on   19-11-2023.

QUORA ANSWERS NEEDNOT BE 100% CORRECT ANSWERS.

Compiled and posted by R.Gopala Krishnan, 80,  on 19-11-2023.

 

Q1      Someonetold me flocks of birds, like pigeons, crows and sparrows, 
lineup on telephonelines because air pressure has dropped, making it more 
difficult to fly,signifying rain is coming. Is this an old wives’ tale or is 
there any scienceto this?

A1      SilkRoad, AI Expert31m

Yea that's nonsense.

It’s not about the low air pressure. Birds can fly inany weather condition.

Birds sit on wire for many reasons. One is that wires areconvenient places to 
perch, especially in areas where there are not many treesor other tall 
structures.

They like to havea good view of their surroundings, and wires offer them that. 
They can seepotential predators, prey, mates, and rivals from up there.

Birds are also very social animals, and they like tocommunicate with each other.

Wires allow them to do that easily. They can sing, call, chatter, oreven groom 
each other on the wires. They can also coordinate theirmovements, like when 
they flock together or migrate.

Predatory birds like hawks and shrikes can spot theirprey from the wires and 
swoop down on them. Some birds even use the wires astraps.

Take crows for instance, they have been observeddropping nuts from wires and 
waiting for cars to crack them open.

So there you have it. Birds sit on wiresfor various reasons, but none of them 
have to do with air pressure or rain. 

They're just smartand adaptable creatures who make use of the human-made 
structures in theirenvironment.

 

Q2      Is eating rice equivalent to eating sugar?

A2      Weightslossdiet(website),Health Director | Loving Father | Business 
Director Jun 7

Rice and sugar are both sources of carbohydrates, butthey have different 
nutritional values and effects on the body. In this article, we willexplore the 
similarities and differences between rice and sugar and whethereating rice is 
equivalent to eating sugar.

First, it is important to understand the different types of rice and sugar.

White rice is arefined grain that has been stripped of its bran and germ, which 
contain fiberand many nutrients.Brown rice, on the other hand, is a whole grain 
that retains its bran and germ,making it a more nutritious choice. 

Sugar comes inmany forms, including table sugar (sucrose), high-fructose corn 
syrup, andnatural sugars found in fruits and vegetables.

One of the maindifferences between rice and sugar is their glycemic index (GI), 
which is a measure of howquickly a food raises blood sugar levels. High-GI 
foods like sugar and refined grains (such aswhite rice) cause a rapid spike in 
blood sugar levels, followed by a crash that can leave you feeling hungry and 
fatigued.

Low-GI foods like whole grains (such as brown rice)and vegetables are digested 
more slowly, providing a steady source of energyand keeping you fuller for 
longer.

Another difference between rice and sugar is theirnutrient content. Brown rice 
is a good source of fiber, vitamins, and mineralslike magnesium, phosphorus, 
and selenium. White rice, on the other hand, is lowin nutrients and can 
contribute to nutrient deficiencies if consumed in excess.Sugar is a source of 
empty calories that provides nonutritional value and can contribute to weight 
gain and other health problemswhen consumed in excess.

Despite these differences, it is important to notethat rice and sugar can both 
be part of a healthy diet when consumed inmoderation. Brownrice is a nutritious 
choice that can provide a variety of health benefits,including improved 
digestion, reduced inflammation, and lower risk of chronicdiseases like heart 
disease and diabetes. Sugar, on the other hand, should beconsumed sparingly and 
in small amounts to avoid the negative health effectsassociated with excess 
sugar intake.

In conclusion, eating rice is not equivalent toeating sugar. While both are 
sources of carbohydrates, they havedifferent nutritional values and effects on 
the body. Brown rice is anutritious choice that can provide many health 
benefits, while sugar should beconsumed sparingly and in small amounts to avoid 
negative health effects. As always, it is important toconsume a balanced diet 
that includes a variety of whole foods to maintainoptimal health.

 

Q2      Whatperson faded away into obscurity despite being responsible for one 
ofhumanity’s most important inventions?

A2      BuckFlanagan, Writer and Director17h

Napoleon iscredited with saying——“An army marches on its stomach”

The food available to soldiers, circa 1810, hardbread and salted meat, was 
neither nutritious or appetizing.

Napoleon offereda prize of 12,000 Francs to anyone who could invent a better 
way to store foodfor his troops.

Chef NicolasAppert(as in appetizing) rose to the challenge.

He perfected amethod of putting food in jars, submerging the jars in boiling 
water topreserve the food, then seal the jars.

In otherwords—-canning.

One of the main inventions that supports modern lifeto which we give little 
thought.

Still well-known in France, Chef Appert has fadedaway into obscurity in the 
rest of the world. 

 

Q3      What are some mind-blowing facts thatsound unreal but are actually true?

A3      VishnuMuralidharan, Was crazy about math and mathematicians in high 
school Updated 6y

Everyone who hasattended high school knows Pythagoras and his famous 
long-standing theoremnamed after him.

My note- Pythagorastheorem states that, in a right triangle, the square of the 
hypotenuse is equalto the sum of the square of the other two sides.

After his theorem was known to the wider intellectualelite of ancient Greece, 
he became dead famous and instantly got a lot of students who soughthis 
tutelage. He was a celebrity in ancient Greece.

However,Pythagoras had a cousin named Lythagoras. Seeing Pythagoras’s far 
reaching fame and hisstature in the Greek society, he began to feel jealous. He 
wanted to make adiscovery or put forward a theorem that would make him famous. 
So, in adesperate effort to squeeze the best ideas out of his brain, he came up 
with what might be calledLythagoras theorem.

in the other words, in a right angle triangle, thesquare of the smallest side 
is equal to the sum of the other two longer sides.

Consider the triplet (3,4,5). They are a Pythagoreantriplet. But you also 
observe that 3 (square)=4+5.

Let’s try one more: (7,24,25). Again, we observe that7square=24+25.

You see that this fails for (6,8,10). Yet,Lythagoras, in his desperation for 
fame, went public without proper proof. His idea couldn’t stand therigor of the 
intellectual community of Greece. He was doomed to oblivion.

Source: I readthis in a book when I was in school. I did a Google search to 
give you some sources but itkept correcting my search. I guess you now 
understand how Pythagoras’s fame overshadows this incident fromhis cousin even 
to this day!

I seriously think you thought this was BS but, trustme, this is true :)

My note- I too tried to get details  about Lythagoras theorem, but Google was 
correcting to Pythagoras.  

 

Q4      What are some of the most mind-blowingfacts?

A4      AlfredYu,B.A. in Business Administration, Shandong University of 
Science andTechnology Updated 5y

Amazon transfersits large quantity of data(several hundred GB or more) by 
vehicles instead ofcomputer network as you think. This method is called 
Sneakernet.

Not only Amazon, the other large corporations such asGoogle, Facebook and so 
forthconvey their large electronic information in this way as well since 
sneakernetis always more efficient and money saving.

“Never underestimate the bandwidth of station wagonfull of tapes hurtling down 
the highway. “— Andrew S. Tanenbaum.

 

Q5      If the Moon is formed after Earth'scollision with Theia, how is the 
Moon still round and did the Earth technicallydecrease in size? What was the 
height of the old Earth and is Earth core Theia?

A5      GaneshSubramaniam, Amateur Radio Operator, Amateur Astronomer8h

Yes – the analysis of samples brought back from theNASA Apollo missions suggest 
that the Earth and Moon are a result of a giantimpact between an early 
proto-planet and an astronomical body called Theia.

When Earth was formed, there was no moon - but therewere proto-Earth and a 
roughly Mars-sized planet dubbed Theia and at some pointin Earth's very early 
history, these two bodies collided.

During this massive collision, nearly all of Earthand Theia melted to become a 
single body, gaining mass. Then, a small part of the newly formed mass spun off 
tobecome the Moon as we know it.

 Actually, the molten material was sent into orbit around Earth, where itformed 
a rotating torus of molten rock. That rock eventually coalesced into theMoon.

It formed into asphere because of gravity pulling the material towards its 
center from alldirections equally. This is called the Giant Impact Hypothesis, 
and isotopic evidence from Apollo moon rocks illustratesthe link between Earth 
and its Moon. 

Needless tomention, when this happened, Earth lost mass equal to the moon’s 
mass.

 

Credit: ByCitronade – Own work, CC BY-SA 4.0, File:Moon - Giant Impact 
Hypothesis - Simple model.png - Wikimedia Commons

Scientists have experimented with modelling theimpact, changing the size of 
Theia to test what happens at different sizes andimpact angles, trying to get 
the nearest possible match.

No, Earth’s core is not Theia. As noted earlier, Theia melted on impact and 
became part of the Earth; Theia and Earthbecame one single body.

 

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