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Kenshō is not a single experience, but refers to a whole series of realizations from a beginner's shallow glimpse of the nature of mind, up to a vision of emptiness equivalent to the 'Path of Seeing' or to Buddhahood itself. In all of these, the same 'thing' is known, but in different degrees of clarity and profundity.
Image credits: Ross Burgener Meanwhile, for Dr. Brandon, the most beautiful natural phenomenon is the northern lights, whereas the most fascinating is the diel vertical migration.
The expected first light image quality was finally achieved after a 1993 servicing mission by Space Shuttle Endeavour. The Large Binocular Telescope had its first light with a single primary mirror on 12 October 2005, which was a view of NGC 891. [5] [6] The second primary mirror was installed in January 2006 and became fully operational in ...
Quantum optics is the study of the nature and effects of light as quantized photons. The first indication that light might be quantized came from Max Planck in 1899 when he correctly modelled blackbody radiation by assuming that the exchange of energy between light and matter only occurred in discrete amounts he called quanta. It was unknown ...
An alternative definition is that the penumbra is the region where some or all of the light source is obscured (i.e., the umbra is a subset of the penumbra). For example, NASA 's Navigation and Ancillary Information Facility defines that a body in the umbra is also within the penumbra.
Here are some of their observations from Inauguration Day and Trump's first week back in power. ... the way the rays of light streaked down from the morning sky and bathed the White House in a ...
The speed of light can be used in time of flight measurements to measure large distances to extremely high precision. Ole Rømer first demonstrated in 1676 that light does not travel instantaneously by studying the apparent motion of Jupiter's moon Io. Progressively more accurate measurements of its speed came over the following centuries.
Here is the wavelength of light, and ¯ is the luminous efficiency function, which represents the eye's sensitivity to different wavelengths of light. Luminous energy is the integrated luminous flux in a given period of time: Q v = ∫ 0 T Φ v ( t ) d t {\displaystyle Q_{\mathrm {v} }=\int _{0}^{T}{\mathit {\Phi _{\mathrm {v} }}}(t)\,\mathrm ...