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01:45:13 Testing Session_Global Accessibility Awareness Day Testing Session_Global Accessibility Awareness Day	Testing Session_Global Accessibility Awareness Day visible content recommend checking formal sciences visual cues assistive technology heading structure quick menu tools technical communication short cuts disability excess ability windows machine deafness compliance issue focus indicator automated testing timing adjustable complex functionality accessibility issue manually check color contrast google services quick note keyboard testing custom development 1st thing text content human–computer interaction browser plug ins missing alternative contrast checker tech support link image requires manual color choices requires manual testing side bar blink blink highly recommend screen reader testing lose keyboard focus d.q. shift tab web site virtual communities site improve student workers screen magnifier manual testing control option space testing site improve user interfaces mentioned earlier great resource time consuming enterprise license system technology browser plugins reading level practical applications plug ins false positive visual content long 510 minutes color contrast issues link text main content contrast issues high school helps build empathy usability screen reader identity theft cornell cast school grade level perceiver bowl bottom left manual check google keyboard accessible custom development team manufacturing good practice repeated content dynamic content high school grade alternative text missing alternative text bold text college sites production and manufacturing success criteria color contrast analyzer link visited link analytics tool manual review 1st time video content quick demo required field business terms text transcript cognitive disabilities 1st place worth calling city lights medium bold additional items color contrast ratio contrast analyzer preferred vendor cag h.t.m.l. broken aria inside improve requires manual review web accessibility 100 percent educational technology caption complete top sites automated tool inclusive space user experience helpful tool testing forms preferred browser content contributor accessibility testing color blindness menu items time component background color user paths improves enterprise tool auto play quality management high-definition television services support keyboard navigation visited link visited 200 percent keyboard trap alternative tax web space link link browser plug google analytics enterprise tool auto captioning cornell website effects From Brandon Brylinsky 20 plays
$Thumbnail for entry Diffraction (Part 2)$ 01:07:41 Diffraction (Part 2) Diffraction (Part 2)	Diffraction (Part 2) 2017 PARADIM Diffraction part 2 David Muller central beam noise source aperture size n.c. concepts in physics ideal d.q. 2nd thing readout noise high dynamic range mental plane thermal noise long time channel gain variations quantum electrodynamics digital imaging count rate optical devices fraction pattern pico amps long range biological imaging range electric fields huge amount signal processing geology d.p. photography thin pixel magnetic field hole pez c.c.d. camera electronics poisson distribution diffraction pattern electron hope point spread function 200 kilovolts $16.00 pico amps neighboring pixel square root mass signal standard deviation detective quantum efficiency spatial frequency optics real space research methods energy distribution magnetic ripples d.q. single electron sensitivity particle physics narrow pixel space measurement slowly varying abled sphere atomic physics imaging mode electric field energy deposited minus sigma pretty good emerging technologies electron beam noise dynamic range point $16.00 pico magnetism dock noise soft moon k.v. pulse counting detector lastic imaging modes e.q. low energy pretty darn good electrons arrive micron pixel fire electron random noise microscopes perfectly linear discrete distributions electron produces mass image percent variation technical details electron hole pay q.e. statistics electrostatics electronics terminology quantum mechanics field image single actor ideal detector multiple pixels grain contrast systems theory electron hole 1st time high count rates charge carriers huge number diffraction spot physical quantities digital photography full diffraction pattern noise time pulse counting beam energy high voltages output noise milli 2nd dynamical systems output signal low count rate dimensional data digital signal processing momentum transfer caption complete $150.00 micron information pixel array detector c.c.d. 1000 electrons laboratory equipment cybernetics atomic resolution scientific method finite size fundamental limit noise ratio fraction spot quantum chemistry t.m. data evaluation methods electromagnetism momentum operator incident electron diffraction probability current flow rough rule beam current wave function diffraction work From James Overhiser 82 plays