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Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...
The hands are in white and black lines respectively, and some branches color the skins beige and brown, a reference to race and ethnicity issues and to the civil rights movement. The Democratic Socialist Organizing Committee (DSOC), one of the DSA's precursor organization, had used the classic fist and rose.
Buzz is usually represented as a stylized yellowjacket with yellow-and-black fur, white wings, a yellow head, and antennae. Buzz is almost never drawn with six legs, but rather with arms, legs, hands (in white gloves) and feet (in black Converse high tops), like a human. Invented in 1972 and restyled in 1979, Buzz reflects the tradition of ...
Quadratic (n = 2) – This is how light intensity decreases in reality if the light has a free path (i.e. no fog or any other thing in the air that can absorb or scatter the light). For a given point at a distance x from the light source, the light intensity received is proportional to 1/x 2. Any number of other mathematical functions may also ...
Radiant intensity: I e,Ω [nb 8] watt per steradian: W/sr: M⋅L 2 ⋅T −3: Radiant flux emitted, reflected, transmitted or received, per unit solid angle. This is a directional quantity. Spectral intensity: I e,Ω,ν [nb 6] watt per steradian per hertz W⋅sr −1 ⋅Hz −1: M⋅L 2 ⋅T −2: Radiant intensity per unit frequency or wavelength.
Thus, when an optometrist or ophthalmologist assesses a patient's visual acuity using a Snellen chart or some other acuity chart, the target image is displayed at high contrast, e.g., black letters of decreasing size on a white background. A subsequent contrast sensitivity exam may demonstrate difficulty with decreased contrast (using, e.g ...