Pranam *1 Gravity*, also called *gravitation*, ( aakarshana in samskritham) in mechanics <https://www.britannica.com/science/mechanics>, the universal force <https://www.britannica.com/science/force-physics> of attraction acting between all matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter. On the other hand, through its long reach and universal action, it controls the trajectories of bodies in the solar system and elsewhere in the universe <https://www.britannica.com/science/universe> and the structures and evolution of stars, galaxies, and the whole cosmos <https://www.britannica.com/science/Cosmos-astronomy>. On Earth all bodies have a weight <https://www.britannica.com/science/weight>, or downward force of gravity, proportional to their mass, which Earth’s mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earth <https://www.britannica.com/place/Earth>’s surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second. Thus, for every second an object is in free fall, its speed increases by about 9.8 metres per second. At the surface of the Moon <https://www.britannica.com/place/Moon> the acceleration of a freely falling body is about 1.6 ( 6 feet approximately) metres per second per second. On the moon you can have more time to catch the ball than on earth. (This is Newton) . It applies to earth and a small distance over the earth in space. Black holes cannot be attracted but can suck in any size object without releasing it so ananthasayana concept does occur ther. There are vacuums in between the space where Gravity is unseen. Therefore it is mechanics.
2 The mass of Earth can be calculated from its radius and *g* if *G* is known. *G* was measured by the English physicist-chemist Henry Cavendish <https://www.britannica.com/biography/Henry-Cavendish> and other early experimenters, who spoke of their work <https://www.britannica.com/science/work-physics> as “weighing the Earth.” The mass of Earth is about 5.98 × 1024 kg, while the mean densities of Earth, the Sun, and the Moon are, respectively, 5.52, 1.43, and 3.3 times that of water <https://www.britannica.com/science/water>. 3 The acceleration <https://www.britannica.com/science/acceleration> *g* varies by about 1/2 of 1 percent with position on Earth’s surface, from about 9.78 metres per second per second at the Equator <https://www.britannica.com/place/Equator> to approximately 9.83 metres per second per second at the poles. In addition to this broad-scale variation, local variations of a few parts in 106 or smaller are caused by variations in the density of Earth’s crust as well as height above sea level <https://www.britannica.com/science/sea-level>. 4 The gravitational potential at the surface of Earth is due mainly to the mass and rotation of Earth, but there are also small contributions from the distant Sun <https://www.britannica.com/place/Sun> and Moon <https://www.britannica.com/place/Moon>. As Earth rotates, those small contributions at any one place vary with time, and so the local value of *g* varies slightly. Those are the diurnal and semidiurnal tidal variations. For most purposes it is necessary to know only the variation of gravity with time at a fixed place or the changes of gravity from place to place; then the tidal variation can be removed. Accordingly, alm 5 Black holes, from which no radiation is able to escape, cannot be seen by their own light, but there are observable secondary effects. If a black hole were one component of a double star <https://www.britannica.com/science/binary-star>, the orbital motion of the pair and the mass of the invisible member might be derived from the oscillatory motion of a visible companion. Because black holes attract matter, any gas <https://www.britannica.com/science/gas-state-of-matter> in the vicinity of an object of this kind would fall into it and acquire, before vanishing into the hole, a high velocity <https://www.britannica.com/science/velocity> and consequently a high temperature <https://www.britannica.com/science/temperature>. The gas may become hot enough to produce X-rays <https://www.britannica.com/science/X-ray> and gamma rays <https://www.britannica.com/science/gamma-ray> from around the hole. Such a mechanism is the origin of at least some powerful X-ray and radio astronomical sources, including those at the centres of galaxies and quasars. In the case of the massive galaxy M87, the supermassive black hole at its centre, which has a mass 6.5 billion times that of the Sun has been directly observed. 6 Interestingly, the concept of gravity was understood by ancient Indians 5,000 years ago! The concept was so prevalent and revered that references abound. 7 Rig Veda-1-103-2 explains: “The gravitational effect of Solar System keeps the earth stable.” Rishi Pippalada in the text, *Prashnopanishad* states, “The mother divinity in the earth helps the *apana* by supporting it.” As per Ayurveda, *apana* is the force equivalent to gravity, present in the middle of the body. In all living beings, it aids the bodily functions of: - Ingestion - taking in of food - Digestion - process of moving and breaking down food into absorbable nutrients - Excretion - discarding body wastes such as defecation - Micturition - Urination - Parturition - Giving birth And Adi Shankaracharya who lived around 460 BCE, wrote in his commentary on the Upanishads: “If the divinity of the earth would not pull down this body by supporting *apana**, this body would have floated anywhere in space.” The ancient Indian scholar Varahamihira said: “Planet earth being surrounded by various stellar bodies situated in space, is similar to an iron sphere remaining suspended between two magnets.” Gravity is a concept that can be traced to the Sanskrit words of *Gurutva* and *Gurutvakarshana* from ancient Indian history. The root word Guru denotes heavy, big and influencing and *Akarshana*, means, “the power of attraction.” The power to attract, *Gurutuva*, is present in all the natural bodies.Indians not only knew of the concept of gravitational pull and had given the word *Gurutva* to it, as a precursor to the English word “gravity”, but also understood the effect of gravity on earth and its inhabitants. Thus, the Guru is the one who influences the subtle or *sukshama*. Varahamihira further explains Guru as the name for the planet Jupiter, which is the largest and heaviest in the Solar System, exerting maximum influence on all the other bodies in the Solar System.The concept of gravity can be found in the *Guru Gita* by sage Vyas where Parvati asks Shiva, “You are the Supreme. But who is it that you bow to?” To which, Shiva replies, “It is to the all-pervading *Guru Tattva* that I bow down to”.The *Guru Tattva* referred to the force of gravity, the Omnipresent force of the Universe known in Hindu scriptures as* Prapancha*. 8 Theory of atoms was formulated approximately 2500 years before Dalton by an Indian sage and philosopher named Acharya Kanada. Acharya Kanada, originally known by the name of Kashyap, is believed to have been born either around 600 BC or 800 BC in Prabhas Kshetra near Dwaraka in present day Gujarat, India. He theorized that Gurutva (Hindi/Sanskrit for Gravity) was responsible for the falling of objects on the Earth. Accordingly, the universe is the interplay of seven aspects or states of material things, namely: 1. Dravyam (matter) 2. Guna (Quality) 3. Karma (Action) 4. Samanya (Generic species) 5. Vishesha (Unique trait) 6. Samavaya (Inherence or integrated part of the whole), and 7. Abhava (Non-existence) Dravyam (matter) is again subdivided into nine aspects: 1. Prithvi (Earth) 2. Jala (Water) 3. Teja (Light) 4. Vaayu (Gas) 5. Aakaasa (Ether) 6. Dika (Direction / space dimension) 7. Kaala (Time) 8. Maanas (Mind) 9. Atma (Soul) Kanada defined ‘life’ as an organized form of atoms and molecules and ‘death’ as an unorganized form of those atoms and molecules. This Indian conception of the atom was developed independently and possibly prior (depending on which dates one accepts for the life of Kanada) to the development of the idea in the Greco-Roman world. KR IRS 27821 On Fri, 27 Aug 2021 at 08:04, 'gopala krishnan' via Thatha_Patty < thatha_patty@googlegroups.com> wrote: > *CULTURAL QA 08-2021-27* > > *Being a compilation there may be errors* > > Q1 What isn't affected by gravity? > > A1 Benjamin Diet License from Claude Bernard University Lyon > 1 (Graduated 2018)April 8, 2017 > > So your question is what is immune to gravity, right? > > Every object which has a mass creates a gravitational field around itself. > Imagine space-time as big sheet. A object disturb space-time as a bowling > ball would if placed on the sheet. > > Mathematically, if an object enters the field and has a mass, it would be > attracted to the centre of the field - the centre of this object, actually. > > It would be attracted because gravity only is an attractive force, as mass > can only be positive (most of the time, at least). > > The only way no to be influenced by gravity would be to have no mass. The > photon has no mass. This is why gravity doesn't influence them. > > Wait, are you sure? > > Yes, this is true, but only in the Newtonian gravitation system. > > Indeed, Newton said that gravity was a force attracting particles. > However, since Albert Einstein, we know better. > > Einstein said something else: > > Gravity bends space-time because of its weight > > Objects follows their path is space-time. > > A photon, which is weightless (kinda, actually, but let’s say it really > completely is), should not be influence by mass. However, we know that > light is distorted by gravitational lens, like this: > > Still, the photon is not attracted by gravity. In fact, gravity bends its > path, created curves in space-time, like this galaxy above does. > > Light, which always follows straight lines, will do so even in curvatures. > A straight line on a curvature is a geodesic, which is actually the > shortest path between two point in a non-Euclidean geometry. > > You can imagine going between New-York and London on the Earth. The > straightest path on the ground is a piece of an arc. Light behave the same > way. > > From the POV of light, there only are straight lines. But for someone > who’s not in the curvature, we see it deviated. > > Is it clearer ? I hope so! Upvote if it helped, or tell me if it didn't! > > Q2 Does life becomes easy in a government job? > > A2 Vipul Saini Engineer at Indian Railways Mon > > There is so many parameters which tells that there is some change in your > life after government job. > > I think I am the right person to answer this questionbas I am doing > government job in Indian railways. > > Economically yes, you feel you are able to buy anything realistic that you > want or you like. So money makes your life easier. > > You eat good, take cares of your health, also support your family,etc. So > in many ways your life is easier after a government job. > > The think that is not easy is taking responsibility of your work or > department. The working condition in government sectors depends on > department to departments. In railway, we have lots of responsibility as I > am in engineering department and I have to take care of approximately 50km > section of rail. Which is a tough task because of fast moving trains and > due to environmental condition. > > Before joining I was studying in IIT. I spend a good life in IIT with > proper food, rest, friends, good research works, labs, juniors, props, > games, events, trackings, girlfriend, etc. So for me life is become > tough after joining government job. > > Q3 doesn't the Hindu culture allow black clothes on any > auspicious occasions? > > A3 Bhuvana Rameshwar Tamil culture and heritage 7h ago > > In Hinduism the black colour is the colour of the god Shani so it is > avoided except when visiting his temple for forgiveness or to ask him not > to be too angry with us. > > He is the God of karma and justice. So people fear him. > > Otherwise some temples like Sabarimala accept black colour for pilgrims as > this is the colour that tolerates dirt, stains and discoloration after a 40 > day fast, 4 days travel by all men groups either in vans or even by > trekking from foot hills. A white, cream coloured dhoti would get dirty and > shabby by the end of the trip. Some wear navy blue too instead of black. > > Black represents darkness, absorption so doesn't reflect back positive > energy, happiness. That is why we prefer bright colours of red, orange, > pink, ,yellow, green in Hinduism. We keep the bland white for our funerals. > Surprisingly black is not worn in funerals unlike Western countries. > However black threads, bangles, keep off evil eyes. > > I love black colour but co incidently it has brought us tyre punctures , > wrong billing or long delays . Everyime I wear a black to the nearby > supermarket invariably we are charged more and get delayed correcting the > bill and getting a prepaid card for next purchase use. > > So I avoid wearing black on long distance journeys. I wear it to our > nearby Shani god temple but very often at home. Even my black silk sari > isn't black according to the weavers it is made of the darkest shade of > dark green. As a norm the kanchipuram weavers do not dye silk cloth, saris > etc. black. > > Q4 Why are Indian Railways stations built above sea level? > > A4 Prasanna Bhalerao Knows about trains. Wed > > Railway stations are built on land. Land is usually above sea level. Hence > railway stations are built above sea level (and not just in India). This > may not be the case if the railway station is built underground. But > building an underground station is a huge expense and serves no special > benefit. > > Q5 What is the sad reality of covid in India? > > A5 Chandan VK Proud Indian. Mon > > Recently I traveled to Banglore by train. > > Whenever I travel to Banglore from my native, Usually train will reach > very early morning like around 4 AM. > > Since it's very early in the morning, it will be very difficult to get a > cab or Auto. By chance if we get any auto,they will not agree to the place > where you have to go or Auto guy will not put meter and they will ask you > to pay double or sometime even more than that. > > So I had braced myself to pay whatever they ask since I had to reach home > as soon as possible. > > I came out of the railway station and one auto came towards me. > > Sir, where you have to go? Auto driver asked. > > Xyz area, I replied. > > He said fine and put meter. His action surprised me a lot. Usually auto > drivers in Bengaluru will not agree for anything so easily.Out of > curiosity, I asked him the same thing like what made him to accept my ride > so easily then this is what he replied. > > “Sir, this covid made my life hell. First lockdown, drained all my > savings. Then after lockdown people are not traveling by auto because of > covid fear. In this situation getting customer is only very difficult. So I > will accept whatever they give since I had to take care the burden of my > family.” > > His words made me think a lot. Once I finished my ride I paid little bit > extra on total fare. > > Cute smile on his face made my day. > > This covid brought many families into road. So whenever you can, try to > help and make their world better. > > Be the one who do something and not the one who just talks. > > Q6 What are the natural ways of living a healthy life? > > A6 Bhuvana Rameshwar married for three decades 7h ago > > A few that we follow. This can be followed by all above 25 . Small, high - > energy, active children, teens needn't follow them for now. > > Exercise.. At least a morning or evening walk for 45 minutes minimum > > Breathe in fresh air, especially early morning clean breeze. > > Eat healthy and reduce snacks like biscuits, chaklis, wafers and other > bakery products. > > Eat lots of seasonal fruits > > and include all the vegetables available in the market, in our diet. We do > not leave out the gourd family vegetables like bitter, bottle, snake ridge > gourd. We also include banana stem, all types of greens and all beans > varieties. > > Fibrous food for better digestion and egestion. > > Reduced red meat and increased fish in our diet. > > Eat on time but a little lesser in volume, reduced on sugar and salt, > pickles, sauces, spices, papads (appalams) > > Have vegetable salads everyday,Reduced number of coffee and tea from say 3 > each per day during working years to one per day now. > > Have curds everyday. > > Keeping ourselves clean. An oil massage of head followed by wash once a > week. > > Avoiding controversial topics of discussion and toxic people. Avoiding > phone calls use of smart phone after 8 pm. > > Go on tours to be with nature like hills, forests, beach side, river side, > far from man made concrete jungles, jam packed buildings, crowd and signal > towers. > > Give rest to smart phones and thus eyes, ears, brain often. > > Sleep a minimum of 8 hours per day. > > Q7 What are the benefits of living in a village? > > A7 Ashvin Rajput Lives in Indore, Madhya Pradesh, India > (2018–present)Updated July 5 > > My hometown is village which is nearby khandwa. Now I am living in Indore > . So here is the benefits of living in village. > > Sukoon ,if someone says to me that if you have a good amount in your bank > account so you can live your life happily. Then where you will want to > live. Then I will happily says to him to live in village . > > In the village you don't have to pay for milk, grains, lentils, > vegetables,most of fruits etc. > > Everyone is your family. I meant if you get sick like injury or long time > fever etc. Every person of the village will come to you and bring fruits > for you and ask about your health 😊. > > In the morning you wake up through voice of KOYAL. Not by alarms or horns > .Such a sweet and melodic voice it is and in the evening you will heard a > voice of Shankh and Ghanti at nearby Mandir. > > Not everyone has it but I have a big house like haveli 3000 square feet > not a 1 bhk like cities. > > Khet a sweetest place of the planet . Here is I am who put the urea in the > crop of wheat > > At time of mansoon you can easily see a Rainbow and sorry you cannot able > to see the beauty of nature which is called Sanjh Khulna. > > . A ride of bullock cart which is truly amazing. > > . A sweet and fresh air not a pollution . > > . I never bought any kind of sweet from market like barfi ,gulabjamun, > mava bati etc. > > Many things are remaining but will tell you later…..😊 > > Edit: I didn't imagine that people's are interested in village life. Some > other things are, > > . Everyone greeting each other by a word's “Jay Shri Krishna or Ram Ram > etc.” everyday, which turns out your mind calm and happy. Just try it, > smile and say anyone “Jay Shri Krishna” > > . Here people don't use mobile or watch TV every time. They meet each > other in the afternoon share their experiences of life ,crack jokes ,that > was amazing time. > > . I remembered, In my village once a person from poor family affected from > cancer and doctor ask 1 lac rupees for operation, Then every family of my > village gave 1000 rupees and operation succeed . > > Q8 After your retirement, did you miss going into an office or > to work every day? > > A8 Ramya Annadurai Technical Writer (2007–present) Tue > > I saw my mom missed going to office after her retirement. > > She meticulously worked for 32 years, without any breaks. Post retirement, > she missed her routine schedule. > > It took about a couple of months to settle.She is fine now. > > Q9 What are the important items needed to furnish a kitchen? > > A9 Gopala Krishnan, former Retired Assistant General Manager > 1996-2004 at Department of Telecom (1966-2004)Answered 6h ago > > It depends on the person’s financial status. In middle class families, a > kitchen platform is provided. Below that provision is made for gas keeping > and extending through a hole to LPG stove. shelves for keeping vessels. > Interior people will provide different types of drawers for keeping thavas, > plates, glasses, knives etc. > > Additional shelves are provided for provision items in shelves. All are > covered. > > Depends on the status , a work area is provided with similar platforms for > wet grinder, mixer, sink for cleaning vessels, washing machine, dust bins, > cleaning clothes, suspending pans etc. Here also shelves are provided for > additional large vessels in shelves, shelves to keep cleaning items etc. > Covering shelves is preferable. > > Chimney is provided over LPG stove. Some make separate provision for > induction stove, microwave equipment etc. > > Provisions are vast. The above told is minimum. > > Q10 Why do water heaters need to be regularly checked? > > 3 Answers Sanil Shah , lives in Mumbai, Maharashtra, IndiaAnswered 1m ago > > Water heaters consist of many important electrical parts like thermostats, > heating elements, sealing gaskets, temperature indicators, and fuses. These > are needed to be checked if your water heater has stopped working. The > thermostat switches ON and OFF heater whenever a specific temperature is > attained by the water. Thus it protects the water heater from overheating > or under heating. If the thermostat is faulty, the water heater will not > switch ON. Now suppose the thermostat is working fine but still water > heater is not switching ON then there may be a problem with the heating > coil. for any breakage and replace it with the new one. Now if everything > is fine and still the heater is not working then you should check your > power cable and fuse. Many times the power cable or fuse is broken due to > prolong usage. It's very easy to replace the power cord or fuse. You may > also take the help of a skilled electrician near you. I would suggest > always buy water heaters which consist of high-grade heating element and > thermostat so that you do not face problems again and again. Better go with > the Morphy Richards water heaters.They have great designs and are quite > durable. > > 2ND ANSWER Gopala Krishnan, former Assistant General Manager 1996-2004 at > Department of Telecom (1966-2004) Answered 6h ago > > Simple answer. The coil is always standing in water. Chances of corrosion > and subsequent electric shock is possible not only in bath room, but other > electrical equipment also. Always switch off the water heater supply and > take bath. periodic check for corrosion and supply leak. > > 3RD ANSWER -Hari Prabhu , former Engineer. Answered 2h ago > > The water heater insulation will be weakened day by day, due to weak the > induction current will effect to the body of the container , then you feel > shock. Therefore periodically to be checked the water heater. > > *All the above QA are based on Quora digest on 26-08- 2021/Answered by me. > Quora answers need not be 100% correct answers * > > *Compiled and posted by R. Gopala krishnan on 27- 08-2021* > > > > -- > 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 thatha_patty+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/thatha_patty/1324185446.977984.1630031646126%40mail.yahoo.com > <https://groups.google.com/d/msgid/thatha_patty/1324185446.977984.1630031646126%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 thatha_patty+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/thatha_patty/CAL5XZooFyJ66D7TfPmrsYjeSR7g7x9kSux2JsTqDdu8A%2BcX_Ow%40mail.gmail.com.
