Originally posted by: AllBlacks1
@ Truth10. Thoghts r not just faster, they r so powerful. Newton just saw an apple dropped on ground and thought didnt it go up in the sky? and the law of Gravity was discovered. Galalio had very hard time time to prove that Earth is round shape and not flat.. against the powerful church followers.
Its grt that we r trying to find secrets of universe but can we first find the secrets of human brains, soul, freewill, after death life? Its much close to our chest than a star billions lightyears away.
Agree,..
But so far the thoughts itself with the soul,.. carrying together each-other,..and can not fly with the
ray of light speed and make us help exploring the Universe, we need to rely on the science, as so far what it knows,.. it tells us concrete,.. e.g. the satellite gives me todays' results that it will be snowing from 5 to 8 and it sure does,... 'Coz its concrete science, it tells what it sees perfectly,.. and do not throw any baloney to me saying that the God is playing ball-bat / gedi-dado,.. when it thunderstorms in the sky !
Somehow,.. certain inventions I do not give much credits ( either to Newton or Galelio ) and feel and sense that,... if not Newton, somebody freaking else, must had invented that during almost that very decade/ time-frame,... as I see nthg that much complicated, in it !
For example the value of PI = 3.14 should must found in the same decade of time,.. if it was not by Mr. PI,... then perhaps by somebody else,.. but not any much later, than that time,.. Anyone could had seen that,..
No mater, any wheel / circle,... becomes bigger or smaller,.. but the ratio of its circumference versus its dia. always remains constant,. ! ...and that value is 3.14.
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Same with the garbage ( per my current mood and thinking, more I think ) invention of Newton, if not him,. someone else must had found it
within the next 2-5 years of those time,.. if Newton did not invent it,.. may be someone else had done it,...,.
Here it's,... how it would had gone,..Say,... you are in that age and time-frame,. of period,... you are living in. ( Newton's time )
So,... You have no paper-pencil and sitting somewhere on the beach,..under the open sky,... watching stars,.. with the beach-sand as a paper in front of you,...and a small tree-bark as your pencil,..to write on the sand,.. !!
1.
You see an apple falling on earth from the tree, ( or say, you throw it up, and it falls back ! )
You think, that there are two round objects here,. one was a small round apple,.. and below it
was a hugh round earth sphere, and there it acted,... some sort of force between those. That's why, apple fell with that force F, back on the earth-ball.
So you write letter " F " on the sand, first. ( that, some force exerted, between two masses m1 and m2 - the two balls in front of you,... )
2.
You do the more same experiments,... with bigger and heavier rocks/ big apples and you observe that apple falls faster, if it's bigger and heavier,... and small apples and feather, falls slowly,..so it also depends on the mass of the second object
Now, you write F varies ( directly proportional to ) m1 ( Bigger the mass, the force exerted is more )
3.
The below round object earth is also that hugh ball,. ( mass m2 )
but if it was smaller, perhaps this force or the fast velocity with which,..this apple is falling,.. it could perhaps had lower,... so you know,... this F is also relying on m2 ( mass of the earth-ball )
Now you write F varies ( directly proportional to ) m2
4.
You do more experiments throwing the same apple back in the air,.. and can observe that it falls slowly when it was at that very high,.. but when it comes closer to the ground,.. if falls faster/heavily speed ,.. so now you know
that this force F is indirectly proportional to the distance between the two objects m1 and m2, ( smaller the distance in between, force is more ) and say,...if the
distance is r,...
now you know
F varies 1/r
So,. now you know,.. F varies ( directly proportional to ) m1. m2 / r
5.
Later, by some Force measuring instruments , Let say,.. you come to know the value of that
Fore ( Force exrted on the earth by that apple ) that , it was in this amount,.. say,...
so and so kg/cm^2.
6.
Later you know the Value of mass of Earth by some other means,..,. or say even if you do not know,... just assume for time-being say,... 100,000 kg
6.
Now you take different size of apples and do the same same experiments and in all above experiment
now you know ( where F is the value of force exerted in each case, of a diff value )
F, m1, m2 and r ( r is the distance between two objects - round apple and round earth underneath. - i.e. r = how high you throw an apple in the air )
7.
And now with all diff. experiments you make a table of
F in one column and value of ( m1.m2/ r ) in other column,... you have a big table
and both the coulms if taken ratio of,.. ( F divided by m1.m2 / r ) you will find that constant - Yess that value of G as 6.67 x 10
-11
which will float constant in that table,.. for all of the results,..of diff. experiments.. ( just like, for any circle's circumference divided by its diameter is 3.1415 )
and now you coin that equation as ,..
F = G. m1.m2 / r^2,.. where G is always,.. 6.67 x 10 -11
How difficult it was ?
of course,.. you will add some other affceting factors/parameters such as effect of wind, friction and other garbage, as an adjustement to this equation.
See,...I pay no importance to Newton,.. for this law of gravity
as any dumber should had also found it, in the same decade, if not him.
Sorry Newton, I see nothing in it.
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Today, we know the m2 - the mass of earth and that constant G's value,... that means,...
if we knew the mass of the Moon,.. we can find how far it is,..
and if we knew that how far the moon is, we can know its mass,.. ( if, by other way we knew teh Gravitational force exerted between them ) viceversa,..
Using this very freaking eqn,...
we throw light at some far galaxy planet and when that ray reflects back to us,. and that's how we know how far it is,.. and then,.. calculate the mass of that planet,. that how big it is,.. and etc.. !
Edited by Truth10 - 9 years ago
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