New 'e-dermis' brings sense of touch, pain to prosthetic hands
Amputees often experience the sensation of a "phantom limb"—a feeling that a missing body part is still there.
Jun 20, 2018
0
908
Robotics
Amputees often experience the sensation of a "phantom limb"—a feeling that a missing body part is still there.
Jun 20, 2018
0
908
Robotics
If something feels sticky, we flex our hand by instinct, we move second, third, fourth fingers at will without a second thought, we cross one finger over the other as if to make a wish; we touch finger to thumb to make a ...
Engineering
Soft rehabilitation gloves have become popular tools for helping patients with hand function-related disabilities recover finger movement. These gloves often use soft pneumatic actuators that employ air pressure to generate ...
Jul 22, 2024
0
18
Robotics
Improving the dexterity of robot hands could have significant implications for automating tasks such as handling goods for supermarkets or sorting through waste for recycling.
Jun 27, 2024
0
68
Robotics
"I'll have you eating out of the palm of my hand" is an unlikely utterance you'll hear from a robot. Why? Most of them don't have palms.
May 20, 2024
0
24
Robotics
Brain-machine interfaces are devices that enable direct communication between a brain's electrical activity and an external device such as a computer or a robotic limb that allows people to control machines using their thoughts.
May 15, 2024
0
10
Electronics & Semiconductors
When scuba divers need to say "I'm okay" or "Shark!" to their dive partners, they use hand signals to communicate visually. But sometimes these movements are difficult to see.
Apr 10, 2024
0
45
Hi Tech & Innovation
Cornell researchers have developed a wristband device that continuously detects hand positioning—as well as objects the hand interacts with—using AI-powered, inaudible soundwaves.
Apr 2, 2024
0
9
Robotics
Researchers have developed a robotic sensor that incorporates artificial intelligence techniques to read braille at speeds roughly double that of most human readers.
Jan 29, 2024
0
38
Robotics
3D printing is advancing rapidly, and the range of materials that can be used has expanded considerably. While the technology was previously limited to fast-curing plastics, it has now been made suitable for slow-curing plastics ...
Nov 15, 2023
0
94
A hand (med./lat.: manus, pl. manūs) is a prehensile, multi-fingered extremity located at the end of an arm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "hand" and fingerprints remarkably similar to human fingerprints) are often described as having either "hands" or "paws" on their front limbs.
Hands are the chief organs for physically manipulating the environment, used for both gross motor skills (such as grasping a large object) and fine motor skills (such as picking up a small pebble). The fingertips contain some of the densest areas of nerve endings on the body, are the richest source of tactile feedback, and have the greatest positioning capability of the body; thus the sense of touch is intimately associated with hands. Like other paired organs (eyes, feet, legs), each hand is dominantly controlled by the opposing brain hemisphere, so that handedness, or the preferred hand choice for single-handed activities such as writing with a pen, reflects individual brain functioning.
Some evolutionary anatomists use the term hand to refer to the appendage of digits on the forelimb more generally — for example, in the context of whether the three digits of the bird hand involved the same homologous loss of two digits as in the dinosaur hand.
The hand has 27 bones, 14 of which are the phalanges (proximal, medial, and distal) of the fingers. The metacarpal is the bone that connects the fingers and the wrist. Each human hand has 5 metacarpals.
This text uses material from Wikipedia, licensed under CC BY-SA