Computer Sciences
When participating in a video call or conference, it is often hard to maintain direct eye contact with other participants, as this requires looking into the camera rather than at the screen. Although most people use video ...
Engineering
A team of researchers at The Hong Kong University of Science and Technology, the University of California, Berkeley and Lawrence Berkeley National Laboratory has built an artificial eye with capabilities that come close to ...
Engineering
User-interactive electronic skin can map the sense of touch through electronic readouts to provide visual output as a readable response. However, the high power consumption, complex structure and high cost of electronic skin ...
Engineering
Researchers at King Abdullah University of Science and Technology have recently developed a flexible and imperceptible magnetic skin that adds permanent magnetic properties to all surfaces to which it is applied. This artificial ...
Consumer & Gadgets
The "eyes" have it—quite literally.
Jan 17, 2020
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1998
Security
With video calls becoming more common in the age of remote and hybrid workplaces, "mute yourself" and "I think you're muted" have become part of our everyday vocabularies. But it turns out muting yourself might not be as ...
Sep 25, 2023
2
315
Computer Sciences
A team of researchers at China University of Geosciences and Wuhan WXYZ Technologies in China has recently proposed a new machine learning-based technique to locate people's eyes in images of their faces. This technique, ...
Engineering
Academics at the University of Sussex have come the closet yet to recreating one of the most iconic of Star Wars technology by developing for the first time holograms that can be seen by the naked eye as well as heard and ...
Nov 13, 2019
0
571
Hardware
World's best. World's fastest. World's smartest. Superlatives are the stuff of which news headlines are made. IBM, taking center stage at its Think 2018 conference in Las Vegas, scores big in superlatives this week in unveiling ...
Security
Researchers at the University of Chicago were not happy with the creeping erosion of privacy posed by facial recognition apps. So they did something about it.
Eyes are organs that detect light, and send signals along the optic nerve to the visual and other areas of the brain[citation needed]. Complex optical systems with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in cnidaria, molluscs, chordates, annelids and arthropods.
The simplest "eyes", such as those in unicellular organisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment.
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