Illusory contours or subjective contours are visual illusions that evoke the perception of an edge without a luminance or color change across that edge. Illusory brightness and depth ordering often accompany illusory contours. Friedrich Schumann is often credited with the discovery of illusory contours around the beginning of the 20th century, but they are present in art dating to the Middle Ages. Gaetano Kanizsaโs 1976 Scientific American paper marked the resurgence of interest in illusory contours for vision scientists. (Wikipedia).
11_6_1 Contours and Tangents to Contours Part 1
A contour is simply the intersection of the curve of a function and a plane or hyperplane at a specific level. The gradient of the original function is a vector perpendicular to the tangent of the contour at a point on the contour.
From playlist Advanced Calculus / Multivariable Calculus
Amazing Art and MORE! IMG! #49
Follow us @tweetsauce Share IMG!s, DONGs, and more at http://www.Facebook.com/VsauceGaming music at the end by http://www.Soundcloud.com/JakeChudnow bearded babies: http://worldwideinterweb.com/component/joomgallery/funny/babies-with-beards/baby-facial-hair-222.html#joomimg cup of kitt
From playlist IMG!
๐ Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
Concavity and Parametric Equations Example
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Concavity and Parametric Equations Example. We find the open t-intervals on which the graph of the parametric equations is concave upward and concave downward.
From playlist Calculus
What is the difference between convex and concave
๐ Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
*** http://www.patreon.com/scifri - Please Help Support Our Video Productions *** Cuttlefish change the patterns on their body for courtship rituals, when they eat a snack, and most famously when they want to blend in. How they change their skin patterns may tell us something about how the
From playlist Cephalopod Week!
What is the difference between concave and convex polygons
๐ Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
What is the difference between convex and concave polygons
๐ Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
9. Illusions and visual prosthesis
MIT 9.04 Sensory Systems, Fall 2013 View the complete course: http://ocw.mit.edu/9-04F13 Instructor: Peter H. Schiller This lecture demonstrates various illusions and analyzes theories for their explanation. Additionally, the instructor discusses the requirements of visual prostheses and
From playlist MIT 9.04 Sensory Systems, Fall 2013
Drawing has always been at the architect's primary means of ideation and representation. This panel assembles distinguished practitioners to discuss the role of drawing, in its various forms, in their practice. Speakers: Preston Scott Cohen (Harvard), Marion Weiss (University of Pennsy
From playlist 'Is Drawing Dead?' YSoA Symposium
What are four types of polygons
๐ Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
Can a contortionist bend his way into a bargain for a special piece? For more, visit http://science.discovery.com/tv/oddities/#mkcpgn=ytsci1
From playlist Oddities
๐ Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
Humans take psychedelics. Should robots? | Ben Goertzel | Big Think
Humans take psychedelics. Should robots? Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- The illegal status of psychedelic
From playlist Psychedelics & performance drugs | Big Think
Lecture 10: Stereotypes || PSY 203: Social Psychology
This video series is for an online summer course in Social Psychology at Eureka College in Eureka, IL. It contains lecture material on a PowerPoint slideshow with me in the bottom right corner of the image. The episode/lecture discusses the following topics: stereotypes, ABC model, kernel
From playlist Social Psychology Lectures
Uncertainty propagation b: Sample estimates
(C) 2012-2013 David Liao (lookatphysics.com) CC-BY-SA Standard deviation vs. sample standard deviation Mean vs. sample mean Standard deviation of the mean vs. standard error of the mean Rule of thumb for thinking about whether error bars overlap
From playlist Probability, statistics, and stochastic processes
The Illusion of Consciousness | Fractured Reality | BBC Earth Lab
Who really are you? Psychologist Bruce Hood has a pretty big idea: thereโs no individual โyouโ in your head at all. Dive into the world of consciousness theory, evolutionary neurology and bizarre brain science as Max explores why our conception of our โselfโ may be completely divorced from
From playlist Fractured Reality
Matrix to metaverse: Can we live a meaningful life in virtual reality? โ with David J Chalmers
What is virtual reality? Is virtual reality genuine reality? And might we already be living in a virtual reality? David J Chalmers explores how technophilosophy can help us understand virtual worlds and and whether we can live a meaningful life in virtual reality. Watch the Q&A: https://yo
From playlist Ri Talks
Why Do So Many People Believe in Conspiracy Theories?
The internet is full of all sorts of wild claims about shadow governments, lizard people, and the shape of the earth. How can these stories inspire tin foil hats despite hard evidence against them? Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://w
From playlist SciShow Psych
11_6_3 Contours and Tangents to Contrours Part 3
Using the gradient as a perpendicular vector to the tangent of a contour of a function's graph to calculate an equation for a tangent (hyper)plane to the function.
From playlist Advanced Calculus / Multivariable Calculus