What is Newton: Definition and 524 Discussions

The Newton is a series of personal digital assistants (PDAs) developed and marketed by Apple Computer, Inc. An early device in the PDA category (the Newton originated the term), it was the first to feature handwriting recognition. Apple started developing the platform in 1987 and shipped the first devices in August 1993. Production officially ended on February 27, 1998. Newton devices ran on a proprietary operating system, Newton OS; examples include Apple's MessagePad series and the eMate 300, and other companies also released devices running on Newton OS. Most Newton devices were based on the ARM 610 RISC processor and all featured handwriting-based input.
The Newton was considered technologically innovative at its debut, but a combination of factors, some of which included its high price and early problems with its handwriting recognition feature, limited its sales. This led to Apple ultimately discontinuing the platform at the direction of Steve Jobs in 1998, a year after his return to the company.

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  1. R

    Nuts About Newton: Exploring Kinetic Energy with Firing a Rifle

    This is something I read recently e / Example 5. Momentum and kinetic energy in firing a rifle example 6 The rifle and bullet have zero momentum and zero kinetic energy to start with. When the trigger is pulled, the bullet gains some momentum in the forward direction, but this is canceled...
  2. B

    Max and Min Forces for Non-Slip Block on Inclined Wedge

    Homework Statement A block of Mass 0.5Kg rests on the inclined surface of a wedge of mass 2Kg. The wedge is acted on by a horizontal force that slides on a frictionless surface. note that the force is towards the box on the incline and not away from it. a) If the coefficient of static...
  3. B

    Solving Newton Force Problem: Two Blocks on Inclined Surface

    Homework Statement Two blocks attached by a string are at rest on an inclined surface. The Lower Block has a mass of m1=0.2Kg and a coefficient of static friction u=0.4. The upper block has a mass m2=0.1Kg and a coefficient of static friction u=0.6. The angle theta is slowly increased...
  4. R

    What did Newton destroy beyond repair?

    Homework Statement 1. In the introduction to the Mechanical Universe, what did Newton destroy beyond repair 2. What did Newton create to take its place? Homework Equations I don't think this question has to do with equations, as it is only worth one mark. The Attempt at a...
  5. J

    Is Newton's Law of Universal Gravitation Proven Wrong by a Simple Experiment?

    [SOLVED] Newton Open Ended Question Homework Statement According to Newton's Law of Universal Gravitation, the force exerted by the Earth on an object is directly proportional to the objects mass According to Newton's Second Law of Motion, the acceleration of an object is directly...
  6. M

    How far below the aiming point does the messy food strike Chretien's image?

    HI! I've looked everywhere for help for this question but i just can't seem to understand it...:frown: The question is below. It is from the SIN contest from 2001, question number 4. I wish they would have the answers posted up on the Waterloo website, but they only have the most recent...
  7. L

    Solving GR vs Newton: F = -GMm/R^2 for Relativistic Particles

    Sorry if you have already covered this subject. Is it possible to apply the formula F = -GMm/R^2 for a relativistic particle substituting m with its relativistic mass?
  8. P

    Max Weight for Newton Law Problem Homework

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  9. P

    Max Height of 2kg Object in Newton Law Problem

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  10. M

    How To Determine Newton Meter Force

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  11. L

    Answer: E = mv2: Understanding Anti Newton's Equation

    Energy (E) = Work E = Fs E = mas E = msv/t --------(because a =v/t) E = mvs/t But s/t = v .: E = mv2 -----------(1) But according to Isaac Newton E = mv2/2
  12. C

    Calculating Orbital Parameters of Halley's Comet

    Okay, so I get the concept behind Newton's version of Kepler's 3rd law, but everytime I go to do a problem with it, I get totally lost. This may be because I have never seen one done in a way that did not totally confuse me... I think it might be best if I just ask one of the questions that's...
  13. R

    Newton's Laws: Solving Friction Problems with Applied Force and Net Force

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  14. K

    Newton (iterative) method to solve a diophantine equation

    My question is..how could we use Newton method (or other iterative method ) to solve: Nx^2 -y^2=1 ?? :confused: :confused: The main problem i see is that the equation before could have some "non-integer" solutions note that (1) can be put in the form: \sqrt(Nx^2 -1)=y
  15. M

    What are the forces acting on the tow-truck?

    I got very confuse about this questions and really appreciate your help on this... many thanks in advance. A tow truck of mass 1000kg is towing a car of mass 600kg and both are moving at a constant velocity of 60m/s. The total resistance to the motion is 4000N and half of this resistance...
  16. B

    Newton Third Law general equation

    I have a picture provided. You can assume that the table is frictionless. I need an expression for the acceleration of m1.
  17. C

    The third law of Newton is always fulfilled?

    Is certain that this law not fulfilled in the case of two charged particles moving in perpendicular directions (the force exerted in the particle A by the magnetic field of B is not equal to the exerted one in B by the magnetic field of A) ? Why? Bye!
  18. J

    How Far Will M1 Travel in 0.633 Seconds?

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  19. Z

    Force and Newton law of Motion

    hi there i have a question in which i can't get the answer i will show my work on what i did, if anybody can help , that would help a lot . here is the question: only two forces act on an object (mass= 3kg) x=40N a=60N is at 45 degrees above the horizon y= ? find...
  20. F

    Demonstration binôme de Newton (a+b)-n

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  21. G

    Newton Problem (2nd Law of Motion)

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  22. S

    Does Newton's Third Law Hold in the Presence of Gravitational Fields?

    Newton's third law states when two bodies interact they exert equal but opposite forces on each other. Now we apply this concept to gravitational attraction between, say, the Sun and the Earth. Sun exerts a gravitational force on Earth, and thus Earth also exerts a gravitaional force on the Sun...
  23. D

    What is a Newton Second (N s)?

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  24. Y

    Noncentral potential and Newton third law

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  25. R

    Why Does Newton Raphson Method Fail for Some Functions?

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  26. J

    Does Accepting Einstein's Theory Mean Rejecting Newton's?

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  27. T

    Discovering Gravity: Newton's Observations and Laws Explained

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  28. D

    General feature of Newton Integral

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  29. A

    Calculating Force: Newton's Law and the Motion of a 850 kg Dragster

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  30. S

    Question regarding Newton third law and weight in a lift

    emm, i m new member here maybe i m stupid and young enuf to ask these question, but i seriously nid help from u all to explain to me 1st, if we standing on a weighing machine in a lift, when the lift accelerate downward, the reading of W.M. wil decrease?and when accelerate upward the reading...
  31. R

    Newton, Time Arrow & Egg Unbreaking: Is it Possible?

    Once in while I read that Newton laws do not forbid the unbreaking of eggs. The only reason that we don’t see it and similar events is the second law of thermodynamics. Is that correct? If an egg falls off the table, isn’t then the reverse process also forbidden by Newton, then how should the...
  32. arivero

    H and c from Newton y Fermi

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  33. W

    Integration of Newton equation?

    integration of Newton equation?? Newton's second law is insufficient to describe the motion of a particle. In addition, it requires a value for F, obtained by considering the particular physical entities with which the particle is interacting. For example, a typical resistive force may be...
  34. U

    Exploring Reactionless Space Drives and the Latest Developments

    Lots of scientists have been researching inertial effects in an attempt to develop the "reactionless space drive" (sometimes called propellantless or self-contained space drives). Has anyone made any headway? I sometimes find articles pertaining to this that will state things like...
  35. B

    How Does Sketching Graphs Help Find the Real Root of f(x) = 2sin(x) - 3x + 2?

    "By sketching appropriate graphs (one of them a straight line) show that the function f(x) = 2sin(x) - 3x + 2 has only one real root." this one confuses me from the word go. how can you sketch a straight line of that function when it has sin as part of it?
  36. N

    What is the value of the mass M?

    a 3kg object sits on table with a pulley attached to it. there is a M object hanging from the pulley. dropped from rest the system moves 127.5cm in 1.65951s. there is no friction. what is the value of the mass M. i used x=vot+1/2at^2 to find the accleration of the 3kg object. it is...
  37. wasteofo2

    What Songs Mention Isaac Newton?

    I'm doing a project on Isaac Newton for my physics class, and the main part of it is a power point project. I figure that I might as well have some songs that mention Newton playing in the background, but I've only been able to find 2 so far. So if you know any songs besides "The Sounds of...
  38. H

    Numerical Methods - Newton Raphson

    The following 2 page example illustrates the use of the Newton-Raphson technique for solving for roots of functions. Examples included: 1. Function in a single variable 2. System of non-linear equations
  39. B

    Solve Newton's Laws: m1 & m2 on Inclined Plane

    A block of mass, m1=3.6kg on a frictionless inclined plane of angle 30 degrees is connected by a cord over a massless,frictionless pulley to a second block of mass,m2=2.1kg hanging vertically.. I can't find the formula or anything. any help? as i need to find the magnitudes of acceleration for...
  40. H

    What Force Must Be Exerted at 35 Degrees on a 30 Degree Hill?

    "Respect" Newton question Ok here's the question: A boy drags a 100-N sled up a 20 degree slope at constant velocity. If the coefficient of friction between sled and hill is 0.2, what force must he exert at an angle of 35 degree with respect to the hill? Ok, I've done the FBD and...
  41. C

    Creating a Working Newton Cradle: Physics & Glass/Stone Balls

    have been trying to make me own workig Newton cradle. I know some physics. the problem is that my balls don´ta completely stop moving after the coalition, they rather continua their movement but with a reduced violocity. This typ of movement increases and grows with the number of coalitions. At...
  42. S

    Any Facts about Newton Polygons

    I'm giving a talk in a few days about Newton Polygons for polynomials and I was wondering if anyone knew of a few (short) interesting uses I could discuss or perhaps a text with a chapter on the subject. I have a cool result about irreducibility and of course the basics but it would be nice to...
  43. K

    Newton vs Einstein: Proving Newton is the Greatest Physics Person

    Hi, I need some help on a paper I'm writing about Newton versus Einstein. Basically I have to prove that Newton is the greatest physics person alive. I researched a lot online and found that Einstein basically copied Newton's findings and added the fourth dimension to make it look it was his...
  44. E

    Calculating Velocity & Compass Heading After Car-Truck Collision

    A 1940 kg Oldsmobile traveling west on Saginaw Street at 17.4 m/s is unable to stop on the ice covered intersection for a red light at Abbott Road. The car collides with a 4166 kg truck hauling animal feed south on Abbott at 9.5 m/s. The two vehicles remain locked together after the impact...
  45. K

    Can somebody reexplain me Newton ?

    Since relativity, we know time is attached locally to an observer... But at Newton's time was in some sense global...(the same for every particle you describe). So what does that global time meant ( when compared to the meaning it has in the relativistic framework) ? It seems to me it's...
  46. N

    Newton to Tonnes (force) conversion

    Does anyone know the conversion factor to go from a force in Newtons to a force in tonnes? The only relevant information I could find was this site, which says "1 Newton = 0.00010197162 tonne-force" Is this correct? Thanks
  47. C

    Exploring Liebnez's Argument: Location vs. Property in Experiments

    I recently read some of Liebnez's work and have become interested in a very important fact. I became very interested by one of his arguments and wondered if this has been dealt with recently. Its fundamental to emperical methods, let me explain the basic process in a simple way: We are...
  48. Q

    How Newton derived his law of gravitation

    I was wondering if any of you could explain how Newton derived his Law of Gravitation: F=G*m_1*m_2/r^2 ? If this question is to vague tell me, thanks guys.
  49. A

    Newton Physics Help: Solving for Coefficient of Friction on Rotating Platform

    a small button is placed on a horizontal rotating platform with diameter 0.320m will revolve with the platform when it is brought up to a speed of 40.0 rev/min, provided the button is no more that 0150m from the axis. what is the the coefficient of static friction between the button and the...
  50. marcus

    Running Newton Constant (no dark matter)

    I admit that dark matter is apple pie and motherhood. I love Dark Matter just like you. But this paper has been accepted for publication in Physical Review Series D they did not post the preprint at arxiv until it had passed peer review and been accepted. this is a 72 page paper. we cannot...
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