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Encryptor

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Posts posted by Encryptor

  1. 15 minutes ago, swansont said:

    We're in free fall with respect to the sun, as we are in orbit.

     

    That is true, however we are continuously accelerating towards its centre therefore a force is constantly applied on us by its gravity. But yes I do agree I shouldn't have factored in the sun now that I look at it since if the force is constant when we jump onto a weighing scale it will still have the sun's force included before or after a solar eclipse.   

  2. I got curious and wondered how much weight we lose while a solar eclipse is in effect so I calculated it here are my calculations please correct me if I'm wrong/made mistakes; Earth's g=9.81N/Kg       Moon's gravitational pull acting on a man standing at the surface of the earth = ((6.67x^-11)x(7.35x10^22))/(384.4x10^6)^2   where 6.67x10^-11 is the gravitational constant,  7.35x10^22 is the mass of the moon, 384.4x10^6 is the distance from the moon to earth therefore moon's g on us is 3.318x10^-5 N/Kg.  Now the sun; ((6.67x10^-11)x(1.989x10^30))/(149.6x10^9)^2 therefore sun's g on us = 5.928x10^-3N/Kg. so 9.81/9.81+(3.318x10^-5)+(5.928x10^-3) = 0.999393 so x100 = 99.94% of g therefore you are 0.06% lighter during a solar eclipse good time to measure your weight if you are on a diet ;)

     

  3. 22 minutes ago, Silvestru said:

    Don't get annoyed :P I didnt sugest that you downgraded the value of human life. There was no moral questioning attached in my comment. I meant that we are not just flesh, we are bone, cartilage and other things thats what I meant. For 2 I tried to make a joke. Your idea is funny and I wanted to google density of human flesh to verify that's when I released it sounds kinda wrong haha. And for the third step I just meant that you switched from the whole human idea in the last part and replaced it with water. 

    Oh alright It seems I have totally misunderstood your comment :P haha thanks for clarifying :D I'll be doing some more calculations soon as well, so a new topic will be made in a bit ;) 

    46 minutes ago, Strange said:

    I have given you a +1 for a wacky idea. This sounds like the sort of thing Randall might try in his What If series: https://what-if.xkcd.com/archive/ (in fact, I'm surprised he hasn't).

     

    Thanks :) Vsauce does a lot of cool comparisons as well, like the time to draw all combinations of cards and telling you what you can do in that time (It was something like filling the grand canyon with grains then for every grand canyon full you put a piece of paper on top of one another and when you reach our star a couple of times you'll be done there was more to it but that's just a summary :) )

  4. 21 hours ago, Silvestru said:

    What exactly is for science? Also:

    1: We are more than flesh. 

    2: You are probably on some watch-list for searching for human flesh density on google.

    3: If you just went with the assumption that human flesh is the same as water than you just calculated(incorrectly) what a body of water in space would be like.

    Right this annoyed me a little, first of all read what I said not just the last part. I didn't downgrade the value of human life nor have I suggested that we should massacre all humans and make a giant blob out of them. Secondly, I am definitely not on any watch list nor do I care as I have simply researched the average density of a human which it told me was similar to water since you know 60% of us is water. As for point 3 again read what I said and add your "5 cents" give more constructive criticism for example: "You could have calculated this... to get a more accurate reading than using the density of water". Finally, this is a what if question so I basically worked out this theoretical sphere that doesn't and hopefully never would exist so do some calculations about this weird concept and share them here :) oh and let me rephrase "for science" for you: "This is just for fun and won't contribute to science at all" I tried to be funny but yeah. Alright hopefully this is all sorted now and we can get back to fun speculations not off-topic arguments.

  5. 18 hours ago, StringJunky said:

    Evolutionarily, it's a bad idea because the more variation there is the more chance there is of overcoming any future unknown adversity. Arbitrarily selecting for certain traits may reduce reproductive fitness in a population

    I do agree with this, however genetically modifying babies to be inheritably smarter or resistant to certain diseases wouldn't take away the variation in our species just enhance the current aspects and abilities but I do take back what I said about physical changes as that would most definitely increase our future risk, for example colonising mars and the changes in our skeleton and other physical attributes that would have to change. 

  6. I'm pro designer babies, we could become the perfect species after modifying ourselves enough; smart, good looking, athletic etc basically we'd skip millennia of evolution so why not? playing god in my opinion is a bad answer because you could say the same for curing illnesses or not curing them so allowing people to live or die or selective breeding perhaps, both are very common. (I hope the poll works)

  7. This is just some fun calculations I'd like to share but what if we made a body in space out of ourselves? so let's do some calculations and you can tell me about any mistakes or add in your own 5 cents :) right:  currently there are ~ 7.57 billion humans on our planet, The average human weighs about 62kg (according to google) and the density of a human(flesh) is similar to water therefore 1kg of us = 1 litre = 0.001m^3. So if we calculate the mass of our planet we'll get 469.34 billion kg or 4.6934E11 kg. The volume of the planet will be 4.6934E11 * 0.001 = 4.6934E8 m^3 or 469.34 million metres cubed. So now we can work out the radius of our planet as V= 4/3(pi)r^3  therefore 4.6934E8= 4/3(pi)r^3   so (3V/(4pi))cube rooted =r   so r^3 = 112,046,671m so r= 482.1m so with that radius I guess we'd count as an asteroid or something. Now for some more fun let's work out the escape velocity (how fast you need to go to escape from the planet): Vescape = sqrt(2GM/r) we got the constant G=6.67E-11 and we got the r and mass of our planet so putting in the numbers the escape velocity will be = 0.36m/s so theoretically you could jump and not come back down. If you guys want to work out other stats for our mythical human planet and add on feel free to. (Just to clarify it will probably have to be a human pulp cause we can't have spaces between them and I'm not a psychopath this is for science :D ) 

  8. Well this post went supernova ;) anyway seems the link got removed so I'll copy and paste everything from the notepad to here also feel free to correct anything you see :)   :

    Value of the sun:

    hydrogen:

    Using bulk buy with pre-tax directly from a hydrogen plant will be from $0.7-$4.1 per kilogram so it will be £0.56-
    £3.30 per Kg of hydrogen.

    mass of sun: 1.989 × 10^30 kg 
    Composition of hydrogen (by mass): 71%

    1.989 × 10^30 kg x 0.71 =  1.41219 x 10^30 kg
    answer*0.56= 7.908264 x 10^29 pounds =bottom limit
    answer*3.30= 4.660227 x 10^30 pounds =upper limit

    £7.91x10^29-£4.66x10^30 for hydrogen

    Helium:
    Bulk buy of pure helium with limited containers is ~$52 per Kg so it will be £41.6 per Kg

    mass of sun: 1.989 × 10^30 kg
    Composition of Helium (by mass): 27.1%

    1.989 × 10^30 kg x 0.271 = 5.39019x10^29 Kg
    answer*41.6= 2.24231904 x 10^31 pounds

    £2.24x10^31 for Helium

    Oxygen:
    Bulk buy of pure oxygen gas from plants is about $3 per Kg so it will be £2.4 per Kg

    mass of sun: 1.989 × 10^30 kg
    Composition of Oxygen (by mass): 0.97%

    1.989 × 10^30 kg x 0.0097 = 1.92933 x 10^28Kg
    answer*2.4= 4.630392 x 10^28 pounds

    £4.63x10^28 for Oxygen

    Carbon:
    Bulk buy of pure solid carbon (basic form no diamonds or other carbon structures)
    is about $24 per Kg so it will be £19.2 per Kg

    mass of sun: 1.989 × 10^30 kg
    Composition of Carbon (by mass): 0.4%

    1.989 × 10^30 kg x 0.004 = 7.956 x 10^27Kg
    answer*19.2= 1.527552x10^29 pounds

    £1.53x10^29 for Carbon

    Iron:
    Bulk buy of PURE solid Iron is about $72 per Kg so it will be £57.6 per Kg

    mass of sun: 1.989 × 10^30 kg
    Composition of Oxygen (by mass): 0.14%

    1.989 × 10^30 kg x 0.0014 = 2.7846 x 10^27Kg
    answer*57.6= 1.6039296 x 10^29 pounds

    £1.60x10^29 for Iron

    Contains traces of other (60+) elements which are below 0.1% composition.

    Total cost for the sun will be between
    £2.36x10^31-£2.74x10^31
    or
    highest price written out £27,400,000,000,000,000,000,000,000,000,000 or 27.4 nonillion pounds

    On 15/09/2017 at 11:22 AM, EdEarl said:

    Area54's answer is correct. However, the sun generates 3.8 x 1026 joules/s. In an hour it generates 3.8 x 1023 kilowatt hours. At $0.05 per kilowatt-hour, that's $1.9 x 1022 per hour.

    Sorry, you cannot afford it. The good news, no one else can either.

    If we visit 55 Cancri e we can ;) 

  9. The monetary value of the sun preferably in pounds (£) also not counting the value lost in all of these materials if we had such high amounts of them. I have done a bit of this myself, see if you can improve or expand on anything or point out some mistakes.  Let's get it as accurate as we can :)  

    offsite link removed

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