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IP65 LED lamp. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical ...
The Dunning–Kruger effect is defined as the tendency of people with low ability in a specific area to give overly positive assessments of this ability. [2] [3] [4] This is often seen as a cognitive bias, i.e. as a systematic tendency to engage in erroneous forms of thinking and judging. [5] [6] [7] In the case of the Dunning–Kruger effect ...
Coarse bokeh on a photo shot with an 85 mm lens and 70 mm entrance pupil diameter, which corresponds to f / 1.2 An example of a portrait photo (of Katherine Maher).Note the 'swirly' bokeh. How the bokeh varies with the aperture. In photography, bokeh (/ ˈ b oʊ k ə / BOH-kə or / ˈ b oʊ k eɪ / BOH-kay; Japanese:) is the aesthetic quality of the blur produced in out-of-focus parts of an ...
The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave. [1] [2] [3] The Doppler effect is named after the physicist Christian Doppler, who described the phenomenon in 1842. A common example of Doppler shift is the change of pitch heard when a ...
A plot of Lorenz's strange attractor for values ρ=28, σ = 10, β = 8/3. The butterfly effect or sensitive dependence on initial conditions is the property of a dynamical system that, starting from any of various arbitrarily close alternative initial conditions on the attractor, the iterated points will become arbitrarily spread out from each other.
Haiku by Matsuo Bashō reading "Quietly, quietly, / yellow mountain roses fall – / sound of the rapids" Haiku (俳句, listen ) is a type of short form poetry that originated in Japan.Traditional Japanese haiku consist of three phrases composed of 17 phonetic units (called on in Japanese, which are similar to syllables) in a 5, 7, 5 pattern; that include a kireji, or "cutting word"; and a ...
Streisand effect. The Streisand effect is an unintended consequence of attempts to hide, remove, or censor information, where the effort instead backfires by increasing public awareness of the information. The effect is named for American singer and actress Barbra Streisand, whose attempt in 2003 to suppress a photographer's publication of a ...
