Anatomy

Bone is a really awesome material, being hard and flexible at the same time. For something so ubiquitous and studied for so long, it might come as a surprise to some of you to hear that the molecular bone structure of bone has alluded scientists for such a long while. This is because, even though the constituent elements [...]

University of Utah researchers analyzed the forces and acceleration involved when different martial artists hit a punching bag. They found that the structure of the fist provides additional support for the knuckles to transmit punching force. “We asked the question: ‘can you strike harder with a fist than with an open palm?’,” co-author David Carrier [...]

In a remarkable medical feat, physicians at Cambridge University have restored movement in the hind legs of 23 dogs after they transplanted nerve cells from the animals’ noses. The results suggest that the procedure might hold similar promising prospects for humans suffering from spinal cord injuries. The researchers used 34 pet dogs for their experimental procedure, of [...]

Take a moment to think about what your ears do. The human ear has a complex system for turning mere sound waves into electric messages for your brain, and it serves to keep you balanced. In order to turn sound waves (which are mechanical energy) into the electrochemical energy that sends messages to the brain, [...]

Silver nanoparticles are often used for extensive medical treatments or antimicrobial health tonics. They’re even used in skin care products, which is rather ironic considering they’ve been linked with argyria, a condition in which the skin turns grayish-blue. Although scientists have known for quite a while that too much silver can cause this condition, the exact mechanisms [...]

Hailed as a breakthrough in reconstructive surgery, an 83-year old woman had her lower jaw replaced by an exact 3D printed replica made out of titanium. The implant was made by heating and fusing together titanium ore, one layer at a time with a laser. The procedure took place last summer in the Netherlands, but [...]

Detailed in a recently published study, a team of ophthalmologists have successfully managed to improve the vision of both of their trial patients, which were declared legally blind due to macular degeneration, by inserting human embryonic stem cells into one eye of each person. Significant improvements were recognized shortly after the procedure, and continued to [...]

Put down that clump of Whale vomit*, there’s a better kind of perfume now: ”Sexual Sweat.” In a possible attempt to level the field for scientists everywhere, researchers Wen Zhou and Denise Chen of Rice University presented 20 women with samples of human sweat, both produced from times when male volunteers viewed either pornography or a [...]

At the nano scale, even the slightest of motions can be harnessed and transformed into useful work. Material science researchers  at the University of Wisconsin, for instance, have developed a very thin plastic belt capable of vibrating from low velocity fluid flow, such as one’s breath. Made out of  polyvinylidene fluoride (PVDF), the microbelt not only [...]

The brain learns basically by shifting between different strengths of its synapses, as a response to different stimuli – that much is clear. However, recently, a team of UCLA scientists have shattered the common belief about the mechanism of learning, showing that the brain learns rhythmically, and that there is an optimal ‘rhythm’, or frequency, [...]