Students examine the structure and function of the human eye, learning some …
Students examine the structure and function of the human eye, learning some amazing features about our eyes, which provide us with sight and an understanding of our surroundings. Students also learn about some common eye problems and the biomedical devices and medical procedures that resolve or help to lessen the effects of these vision deficiencies, including vision correction surgery.
The subject of race can be very touchy. As finance executive Mellody …
The subject of race can be very touchy. As finance executive Mellody Hobson says, it's a "conversational third rail." But, she says, that's exactly why we need to start talking about it. In this engaging, persuasive talk, Hobson makes the case that speaking openly about race — and particularly about diversity in hiring — makes for better businesses and a better society
Vision is the primary sense of many animals and much is known …
Vision is the primary sense of many animals and much is known about how vision is processed in the mammalian nervous system. One distinct property of the primary visual cortex is a highly organized pattern of sensitivity to location and orientation of objects in the visual field. But how did we learn this? An important tool is the ability to design experiments to map out the structure and response of a system such as vision. In this activity, students learn about the visual system and then conduct a model experiment to map the visual field response of a Panoptes robot. (In Greek mythology, Argus Panoptes was the "all-seeing" watchman giant with 100 eyes.) A simple activity modification enables a true black box experiment, in which students do not directly observe how the visual system is configured, and must match the input to the output in order to reconstruct the unseen system inside the box.
"أعتقد أن فقدي لقدرة السمع كان من أعظم الهبات التي حصلت عليها." …
"أعتقد أن فقدي لقدرة السمع كان من أعظم الهبات التي حصلت عليها." تقول إيليس روي. هي كمحامية لحقوق المعاقين ومصممة تفكير، تعرف أن كونها صماء يمنحها طريقة مميزة لإختبار العالم والعمل على تحسينه، ،هي وجهة نظر يمكن أن تحل بعض أكبر المشاكل التي نواجهها. كما تقول هي " عندما نبدأ في التصميم للمعاقين أولا، فإننا غالبا ما نكتشف حلول ليست شاملة فقط، ولكنها أيضا غالبا ما تكون أفضل من التصميم كما هو متبع"
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