When We Feel Sad, Why Do We Feel Heaviness at Our Chest?

Your body also responds to that. When your body experiences difficulties like you are being tired or pain, you will breath using your chest. When you are relaxed, you will breath using you diaphragm (belly-breathing).

Now if you combine those two facts, it might explain the heaviness in your chest. The body get's more trouble performing tasks because of the hormonal difference and you automatically start using your chest to breath.Now, you can test this easily. When you feel sad, and notice this heavy chest. Take a comfortable position, and do nothing but breath in and out peacefully but very consciously using you diaphragm, not your chest, for at least 5 minutes but preferably 10 - 15. If my theory is correct, the heavyness on your chest will go away or at least become much less.You can also force yourself to think of something happier, but that is of course a lot harder.

• Related Questions

Yes. The SLS can lift far more than the Falcon Heavy.An artists rendition of SpaceXs Falcon Heavy, one of two heavy-lift vehicles under development in the US today. (credit: SpaceX)An artists rendition of NASAs Space Launch System, one of two heavy-lift vehicles under development in the US today. (credit: NASA)The Falcon Heavy (FH) is not optimized for maximum terminal velocity or maximum payload to beyond Earth orbit (BEO) locations; instead, the goal is maximum payload to LEO for minimum cost, coupled with a significant geosynchronous Transfer orbit (GTO) payload for a minimum cost. The usage of liquid oxygen/RP-1 instead of liquid oxygen/hydrogen engines provides less thrust and results in lower terminal velocity, but it also runs cooler, putting less wear and tear on the engines and promoting the goal of reusability. Finally, the all-liquid-engine FH allows for main stage and side booster engine restarts associated with boost-back to the launch pad and eventual reusability, something that is not possible with solid boosters.

All this data confirms what the potential customer should already know from understanding the architectures of each launch system. If you want to launch a large probe to the outer planets at high velocity, SLS has that capability. If you want to put a large amount of mass into LEO, the throw weights are similar.

Battle of the Collossi: SLS vs Falcon Heavy

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What would be the exact distance needed to draw an accurate solar system to scale?

This is a fantastic question and is an excellent example to demonstrate how size and distance are compared to things that we know of, e.g., golf balls and football fields. The biggest problem with diagrams of the solar system, is that if you make the diagram so that it can fit on a chalkboard for example, you canu2019t make the planets to scale because some of the planets would be too small to see. I once made an excel worksheet that calculated the dimensions of a scale model of the solar system, and in order to make the diagram a manageable size, the diameter of Pluto was smaller than a Hydrogen atom. Make the planets large enough that they can be seen, the Sun is massive, since it contains more than 90% of the solar systemu2019s mass, and the distances required to match the planet scale is massive. I used to attend Snow College, and at some point someone had laid out the solar system on the sidewalk through campus. The main campus of Snow College is across several city blocks, and the marks of all of the planets required all of them.

Using the scale solar system calculator that Andrew Larmour suggested, we get these valuesAs we can see, in order to make Mercury, the smallest planet, 1 centimeter, the entire solar system to scale (not including Pluto), makes the solar system almost 21 kilometers in diameter (13.04 miles).Here is the diagram centered on New York CityWhat would be the exact distance needed to draw an accurate solar system to scale?

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Is there any possibility that after billions or trillions of years, the Sun will lose its heat energy and disappear from the universe?

The Sun is a star, and like all stars, it converts hydrogen, the most common element in the universe (by far), into helium, a process called fusion, which releases enormous quantities of gamma rays. By the time it takes for those gamma rays to reach the surface from the core where they are produced, it takes about 100,000 years in the case of our Sun, they will have degraded from high energy gamma to relatively low energy x-rays, UV rays, visible light, IR rays (heat) and microwaves.As a star consumes its hydrogen it gets hotter and hotter which accelerates the fusion process and at a certain point, the hydrogen is used up and the star collapses in the core and expands at the surface. It wonu2019t disappear (eventually it does) right away, but after a few billion years it will no longer be able to provide enough light and heat to sustain life on Earth. However, long before then, the increased heat of the Sun will have evaporated and blown away all the air and water, sterilizing the planet, mountains will melt into valleys and the surface of the Earth will resemble a glass ball with pock marks from space rocks which will reach the surface as there will be no air to stop them.Is there any possibility that after billions or trillions of years, the Sun will lose its heat energy and disappear from the universe?.

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Why does a black hole have more gravity than the star it came from?

Newton's laws are only an approximation. General relativity provides the complete picture. Under GR, objects passing through spacetime follow geodesic paths which are the spacetime analog of straight line paths in Euclidean space. However, the presence of mass/energy causes the local curvature of spacetime to change so that those geodesic paths curve towards the more massive object. In other words, under GR gravity isn't a force at all. It's just the geometry of spacetime. EM waves and ordinary massive objects passing through the gravitational field follow the geodesic path which naturally brings them closer to the massive object. The larger the local stress-energy tensor, the larger the curvature. This is where the energy density issue comes into play. Even though the black hole only has the same mass as the original star, it causes a much greater local curvature in spacetime as it collapses because of its extreme density. The Event horizon forms the boundary between ordinary spacetime where the local geodesic paths allow objects to pass by and the interior of the "hole". Inside the horizon all of the local geodesics point directly toward the central singularity. Nothing can escape because the geometry of spacetime becomes one-way only. To your original point though, outside of the the event horizon any traveler would experience the same gravitational attraction to the black hole as they experienced with the original star at the same distance.

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Is there any comparison of hydrogen enriched water makers?

u3010High-Rich Hydrogen Water Ionizeru3011 -- This hydrogen-rich water cup could electrolyze stable high concentration hydrogen rich water (Hydrogen Concentration: 0.8-1.0 PPM; ORP: -230 mV to -280 mV) which could be directly drunk in only 5 minutes.u3010Healthy & Environment Friendlyu3011 -- Hydrogen, a natural antioxidant, which surpass other known antioxidants, such as, vitamin A, C, E and green tea, could effectively redox free radicals (Malignant free radical is the source of all diseases) to keep us healthy. With Hydrogen-Rich Water Maker Cup, you can get Natural Miracle Healing Water with high concentration of hydrogen.u3010Thoughtful Designu3011 -- The switch on the bottom of the cup features "no-clean". The water moves in a different direction after switching. In this way, you even needn't wash the cup frequently. This day you use one side while next day you could use the other side.u3010Economical, Portable & Convenientu3011 -- You can drink hydrogen-rich water anywhere you go with this stylish hydrogen water maker. It works on rechargeable battery just as your mobile phone. It provides you hydrogen-rich water in just 5 minutes. Great for personal use, out-door and office use.

u3010Safe, Rest Assured Useu3011 -- This Hydrogen-Rich Water Cup is made of Safe Food-Grade PET Material and has passed FDA Authentication, CE-EMC authentication, CE-LVD authentication.Visit: https://www.olansi.net/hydrogen-water-machine/Is there any comparison of hydrogen enriched water makers?

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How does the sun turn into a red giant? I don't really get how it suddenly becomes a whole lot bigger.

For the past 4.5 billion years the Sun has been producing energy by nuclear fusion of hydrogen into helium in its core. That energy exerts an outward pressure against its own gravity. These two forces achieve a balance so that the size of the Sun remains stable. Once the supply of hydrogen in the core runs out, nuclear fusion in the core will stop and gravity will compress the Sun, becoming smaller and denser. With this compression, temperatures will rise until the shell of hydrogen outside of the core will become hot enough to start nuclear fusion of this new supply of hydrogen into helium. In addition, helium in the core will begin to fuse into carbon. This will produce more energy than previously. In about 5 billion years, the Sun will therefore swell up, becoming a red giant.The reason for the color change is that the energy produced is spread across a larger area, surface temperatures become cooler and the light spectrum shifts towards red.

Eventually, the total supply of helium inside the Sun will run out, nuclear fusion will stop and the Sun will compress into a tiny version: a white dwarf.Stars having a mass greater than the Sun are capable of fusing carbon and so on through the heavier elements until iron. Fusion of iron requires energy input; at that point, all fusion will stop for good. But that is another story.

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Is the English language egocentric-based? How can I avoid writing too many sentences which start or include the word "I"? Could not the subjective point of view be the solution?

The pronoun u2018Iu2019 is used to denote that the subject is you the speaker. If you really want to reduce the amount of u2018Iu2019s in your writting, drop your personal responses.In fact, itu2019s the reason why u2018Iu2019 is omitted in most high-level writting like university research journals or your typical tertiary level essay. Personal responses, while not entirely a bad thing, is omitted, giving the writting a more professional and educated portrayal.Instead of saying things like u2018I created hydrochloric acid by combining hydrogen and chlorine together .u2019, a person writting professionally while conveying the same point may opt to say:u2018In combining hydrogen and chlorine together, the end-result was hydrochloric acid.

u2019Personally, itu2019s a matter of craft. How can I make a personal statement become third-person in nature? Having need to write essays in a manner that does not make me egocentric, a smart-aleck or too personal as opposed to objective, it was something I had issues. With a little bit of practice, it became more natural.

Is the English language egocentric-based? How can I avoid writing too many sentences which start or include the word "I"? Could not the subjective point of view be the solution?Is the English language egocentric-based? How can I avoid writing too many sentences which start or include theletter "I"? Could not the subjective point of view be the solution?