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  2. G299.2-2.9 - Wikipedia

    en.wikipedia.org/wiki/G299.2-2.9

    G299.2-2.9 is a supernova remnant in the Milky Way, 16,000 light years from Earth. [2] It is the remains of a Type Ia supernova . [ 3 ] The observed radius of the remnant shell translates to approximately 4,500 years of expansion, [ 4 ] making it one of the oldest observed Type Ia supernova remnants.

  3. Numerical relativity - Wikipedia

    en.wikipedia.org/wiki/Numerical_relativity

    Numerical relativity is one of the branches of general relativity that uses numerical methods and algorithms to solve and analyze problems. To this end, supercomputers are often employed to study black holes , gravitational waves , neutron stars and many other phenomena described by Albert Einstein's theory of general relativity .

  4. List of numerical analysis topics - Wikipedia

    en.wikipedia.org/wiki/List_of_numerical_analysis...

    Linear multistep method — the other main class of methods for initial-value problems Backward differentiation formula — implicit methods of order 2 to 6; especially suitable for stiff equations; Numerov's method — fourth-order method for equations of the form ″ = (,)

  5. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    newton meter squared per kilogram squared (N⋅m 2 /kg 2) shear modulus: pascal (Pa) or newton per square meter (N/m 2) acceleration due to gravity: meters per second squared (m/s 2), or equivalently, newtons per kilogram (N/kg) magnetic field strength: ampere per meter (A/m) Hamiltonian: joule (J)

  6. Equations of motion - Wikipedia

    en.wikipedia.org/wiki/Equations_of_motion

    There are two main descriptions of motion: dynamics and kinematics.Dynamics is general, since the momenta, forces and energy of the particles are taken into account. In this instance, sometimes the term dynamics refers to the differential equations that the system satisfies (e.g., Newton's second law or Euler–Lagrange equations), and sometimes to the solutions to those equations.

  7. Try these four expert-approved treat-delivery methods to keep ...

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    2. Dropped on the ground. This encourages sniffing, and will help keep your dog busy as they search for tasty treats! Burton adds, “It’s also an excellent choice for dogs prone to jumping ...

  8. Numerical aperture - Wikipedia

    en.wikipedia.org/wiki/Numerical_aperture

    As a pencil of light goes through a flat plane of glass, its half-angle changes to θ 2. Due to Snell's law, the numerical aperture remains the same: NA = n 1 sin θ 1 = n 2 sin θ 2. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can accept or ...

  9. Georgia QB Carson Beck suffered elbow injury in SEC title ...

    www.aol.com/sports/georgia-qb-carson-beck...

    Georgia quarterback Carson Beck suffered an elbow injury during Saturday's SEC Conference championship against Texas and is looking into treatment options, the school confirmed in a release on ...