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  2. Theta wave - Wikipedia

    en.wikipedia.org/wiki/Theta_wave

    Theta waves generate the theta rhythm, a neural oscillation in the brain that underlies various aspects of cognition and behavior, including learning, memory, and spatial navigation in many animals. [ 1 ] [ 2 ] It can be recorded using various electrophysiological methods, such as electroencephalogram (EEG), recorded either from inside the ...

  3. Stefan–Boltzmann law - Wikipedia

    en.wikipedia.org/wiki/Stefan–Boltzmann_law

    The temperature Stefan obtained was a median value of previous ones, 1950 °C and the absolute thermodynamic one 2200 K. As 2.57 4 = 43.5, it follows from the law that the temperature of the Sun is 2.57 times greater than the temperature of the lamella, so Stefan got a value of 5430 °C or 5700 K.

  4. Radiative transfer - Wikipedia

    en.wikipedia.org/wiki/Radiative_transfer

    Radiative transfer (also called radiation transport) is the physical phenomenon of energy transfer in the form of electromagnetic radiation.The propagation of radiation through a medium is affected by absorption, emission, and scattering processes.

  5. Phase precession - Wikipedia

    en.wikipedia.org/wiki/Phase_precession

    The finding that theta wave phase precession is also a property of grid cells in the entorhinal cortex demonstrated that the phenomenon exists in other parts of the brain that also mediate information about movement. [11] Theta wave phase precession in the hippocampus also plays a role in some brain functions that are unrelated to spatial location.

  6. Schumann resonances - Wikipedia

    en.wikipedia.org/wiki/Schumann_resonances

    Schumann resonances occur because the space between the surface of the Earth and the conductive ionosphere acts as a closed, although variable-sized waveguide. The limited dimensions of the Earth cause this waveguide to act as a resonant cavity for electromagnetic waves in the extremely low frequency band. The cavity is naturally excited by ...

  7. Nonlinear dispersion relation - Wikipedia

    en.wikipedia.org/wiki/Nonlinear_dispersion_relation

    A nonlinear dispersion relation (NDR) is a dispersion relation that assigns the correct phase velocity to a nonlinear wave structure. As an example of how diverse and intricate the underlying description can be, we deal with plane electrostatic wave structures ϕ ( x − v 0 t ) {\displaystyle \phi (x-v_{0}t)} which propagate with v 0 ...

  8. Mikheyev–Smirnov–Wolfenstein effect - Wikipedia

    en.wikipedia.org/wiki/Mikheyev–Smirnov...

    The continuous line is for neutrinos that are detected in the day, the dotted one for neutrinos that are detected in the night and that pass through the Earth, experiencing "regeneration". The 4 vertical strips indicate the values of the energies at which the survival probability was measured, by means of pp , 7 Be , pep, and 8 B solar ...

  9. Outgoing longwave radiation - Wikipedia

    en.wikipedia.org/wiki/Outgoing_longwave_radiation

    In the case of global energy flux, the W/m 2 value is obtained by dividing the total energy flow over the surface of the globe (measured in watts) by the surface area of the Earth, 5.1 × 10 14 m 2 (5.1 × 10 8 km 2; 2.0 × 10 8 sq mi). [3]