Energy.

Discussion in 'Science' started by Brett Nortje, Jun 26, 2017.

  1. Brett Nortje

    Brett Nortje Well-Known Member

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    Have yo ever noticed how you can take two items that weight the same, and, the smaller one will be harder? think, now, a kilogram of concrete, in a ball, striking a kilogram of coal, the cement will dent the coal as it is made harder, yes? how about a kilo of coal against a kilo of tobacco? the decisive factor is density, of course.

    I think this comes from stored energy. potential energy, if you will? this would mean that the more compressed the substance is, the harder it is, and, the denser it is. this is because it has more potential energy, which manifests in kinetic energy somehow when in motion, of course.

    Now, this follows that an engine that has smaller parts will lose energy, as the parts are bigger and weight what they weigh, and some energy is lost when in motion onto smaller parts, or, bigger parts, i am not really sure which. this comes from the gears having influence on each other, where the bigger lighter gears would lose energy if they influenced smaller gears, and, the smaller denser gears would gain energy if they were to affect bigger gears, yes?
     
  2. Skruddgemire

    Skruddgemire Well-Known Member

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    Dude...seriously...read some science textbooks. Your ideas violate so many of the scientific laws that I can't even begin to explain.
     
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  3. Otern

    Otern Active Member

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    You're obviously interested in "science", based on the vast amounts of posts on the subject. But why haven't you learned any science at all before coming up with these ramblings?
     
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  4. tecoyah

    tecoyah Well-Known Member Past Donor

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    The density in question here has nothing to do with matter.......perhaps grey.
     
    Last edited: Jun 26, 2017
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  5. perdidochas

    perdidochas Well-Known Member

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    Not always. Between wood (density of less than 1 per CC) and water (density of 1 per CC), wood is much harder.

    Has nothing to do with stored energy potential.
     
  6. Jonsa

    Jonsa Well-Known Member Past Donor

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    Ever heard of e=mc2?

    hint: "mass" is the key
     
    Last edited: Jun 26, 2017
  7. Skruddgemire

    Skruddgemire Well-Known Member

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    But density has nothing to do with mass. A kilogram of lead would have the same energy as a kilogram of aluminum when converted as they would have the same mass. One may be denser than the other...but the mass is the same. In the vacuum and microgravity of space...it takes the same amount of energy to overcome inertia and to accelerate to one G.

    Density matters not.
     
  8. Jonsa

    Jonsa Well-Known Member Past Donor

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    Yes hence my "hint".
     
  9. Brett Nortje

    Brett Nortje Well-Known Member

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    Haven't you ever thought of why some things break or get dented by others? the floor, as if you were to drop a ceramic plate onto, would break because there is so much "mass" on the floor, yes? conversely, if you were to drop a kilo of nickel onto the floor, the floor would get dented, yes?

    Now, when i refer to density, i mean the amount of protons and electrons inside the "mass." this leads to a more congested space, and, there is more potential energy for the same size thing, of course. following that, the 'denser' thing is the thing which occupies less space, and, the denser something is, the more potential energy it has.
     
  10. Jonsa

    Jonsa Well-Known Member Past Donor

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    Seems you really don't comprehend e=mc2.

    MAAAAASSSSSSSSSS not density defines potential energy.
     
  11. Brett Nortje

    Brett Nortje Well-Known Member

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    And the density increases the mass, yes?
     
  12. Skruddgemire

    Skruddgemire Well-Known Member

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    Every action has an equal and opposite reaction. Meaning that if you push onto a wall with one newton of force, the wall is pushing back with that same newton of force. So if a plate hits the floor with X amount of energy, the floor is hitting the place with the same X amount of energy.

    And if that X amount of energy is greater than the strength of the plate...the plate is going to shatter.

    Same applies. However since the kilo of nickel is going to have a smaller surface area, the energy is more focused. Push on a steel wall with your hand with one pound of pressure and the wall pushes back. No harm to either. Push on the sharp end of a steel knife with that same one pound of force...it's going through your hand.

    Now, in both examples, we used the same sort of materials. Both involved a flesh and bone hand...and both involved a steel object. Same densities...same applied force...different results.

    Nope. If you could collapse the Sun into a black hole. An object of mind-boggling density. An object so dense that even light can not escape it's grasp.

    You do that and what do you think would happen to the orbits of the planets and comets and asteroids and Oort cloud and kyper belt objects? Nothing.

    They wouldn't even blink in their orbits. Why? Because a black hole still has the same mass it did when when it was a star and if it still has the same mass, it has the same potential energy as calculated by E=mc². It also has the same impact on gravity so nothing would happen to the planets or their orbits.

    Go to your local library and please check out and read some science textbooks. The stuff you're having a hard time grasping is the same stuff I learned in school as a child.
     
  13. Skruddgemire

    Skruddgemire Well-Known Member

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    Nope!

    A kilogram of feathers has the same mass as a kilogram of tungsten which has the same mass as a kilogram of water which has the same mass as a kilogram of...well hopefully you get the idea.

    Density and mass are two different things. Water has a density of 1 gram per cubic centimeter. Freeze that water and its density changes to 0.9167 g/cm3. If we take a kilogram of water and freeze it...the mass stays the same. Same substance...same mass...different densities.
     
  14. Brett Nortje

    Brett Nortje Well-Known Member

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    Okay, you have trouble grasping my density and mass and potential angles, of course.

    If you were to observe that mass applied to a smaller space will get denser, that is good. if you apply this knife thing to it, the knife will go through the wall if it is made of wood, eventually, which is less dense than the knife. if you push a knife into a brick wall, you will find that the knife cannot penetrate as there is less dense, yet, too little force pushing it. if it were pushed with forklift's fork, then that wall is going down, momentum, pressure. therefore, the wall loses density the more area it is applied to, yes?
     
  15. Brett Nortje

    Brett Nortje Well-Known Member

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    Ice floats in water.
     
  16. Moi621

    Moi621 Well-Known Member Past Donor

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    Deus vult!

    What part don't you get?

    The first word or the second of two words?


    Moi :oldman:

    r > g



    invadecanadanewban.JPG
    Deus vult!
    They know too much about ice.
     
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  17. Skruddgemire

    Skruddgemire Well-Known Member

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    So what? I can make 100,000 tons of steel float on water. A Kilogram of water has the same mass as a kilogram of ice. Density is not a factor of mass.
     
  18. Skruddgemire

    Skruddgemire Well-Known Member

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    Somewhere, there is a science teacher weeping.
     
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  19. perdidochas

    perdidochas Well-Known Member

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    Denting has to do with hardness, not density. Sand is more dense than wood. If I drop wood onto sand, the sand dents. Aluminum is also more dense than wood. Again, if I drop wood onto aluminum, the aluminum dents. Please stop posting nonsense and study science for a few years first.
     
  20. perdidochas

    perdidochas Well-Known Member

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    Only if the volume remains constant. If I take some styrofoam, and I make it more dense by crushing it, the mass remains the same, even though the density increases (and the volume decreases).
     
  21. perdidochas

    perdidochas Well-Known Member

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    Yes, it does. The point is that if I start with a KG of water which if the water is pure is a liter of water (and it's density is 1 gm/cm3), and I freeze it, I will now still have 1 kg of ice, but instead of a liter, I will have 1.09 liters of ice. It's new density will be .9167 gm/cm3. It is the same substance.
     
  22. Moi621

    Moi621 Well-Known Member Past Donor

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    Have you considered converting gravity to energy?

    I mean directly. Nothing mechanical such as gravity driven hydro electric generators.
     
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  23. Brett Nortje

    Brett Nortje Well-Known Member

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    That is a good idea... do you have a mechanism?
     
  24. primate

    primate Well-Known Member Past Donor

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    Drop it. Pun intended. You know....drop the object.....drop this subject. BTW, energy and work aren't quite the same.
     
  25. Montegriffo

    Montegriffo Well-Known Member

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    Trebuchet.
     

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