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  2. File:Waveforms.svg - Wikipedia

    en.wikipedia.org/wiki/File:Waveforms.svg

    English: This shows several waveforms: sine wave, square wave, triangle wave, and rising sawtooth wave. ... This vector image was created with a text editor.

  3. Cosmic microwave background - Wikipedia

    en.wikipedia.org/wiki/Cosmic_microwave_background

    The telescope is designed for observations in the microwave, millimeter-wave, and submillimeter-wave regions of the electromagnetic spectrum, with the particular design goal of measuring the faint, diffuse emission from the cosmic microwave background (CMB). [49]

  4. Vector soliton - Wikipedia

    en.wikipedia.org/wiki/Vector_soliton

    In physical optics or wave optics, a vector soliton is a solitary wave with multiple components coupled together that maintains its shape during propagation. Ordinary solitons maintain their shape but have effectively only one (scalar) polarization component, while vector solitons have two distinct polarization components.

  5. Wavenumber - Wikipedia

    en.wikipedia.org/wiki/Wavenumber

    In multidimensional systems, the wavenumber is the magnitude of the wave vector. The space of wave vectors is called reciprocal space. Wave numbers and wave vectors play an essential role in optics and the physics of wave scattering, such as X-ray diffraction, neutron diffraction, electron diffraction, and elementary particle physics.

  6. BICEP and Keck Array - Wikipedia

    en.wikipedia.org/wiki/BICEP_and_Keck_Array

    BICEP (Background Imaging of Cosmic Extragalactic Polarization) and the Keck Array are a series of cosmic microwave background (CMB) experiments. They aim to measure the polarization of the CMB; in particular, measuring the B -mode of the CMB.

  7. Polarization (waves) - Wikipedia

    en.wikipedia.org/wiki/Polarization_(waves)

    The vector containing e x and e y (but without the z component which is necessarily zero for a transverse wave) is known as a Jones vector. In addition to specifying the polarization state of the wave, a general Jones vector also specifies the overall magnitude and phase of that wave.

  8. Discovery of cosmic microwave background radiation - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_cosmic...

    The discovery of cosmic microwave background radiation constitutes a major development in modern physical cosmology. In 1964, US physicist Arno Allan Penzias and radio-astronomer Robert Woodrow Wilson discovered the cosmic microwave background (CMB) , estimating its temperature as 3.5 K, as they experimented with the Holmdel Horn Antenna .

  9. Matter wave - Wikipedia

    en.wikipedia.org/wiki/Matter_wave

    The more general description of matter waves corresponding to a single particle type (e.g. a single electron or neutron only) would have a form similar to = (,) ⁡ (() /) where now there is an additional spatial term (,) in the front, and the energy has been written more generally as a function of the wave vector. The various terms given ...

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