SOCIAL Neural implant helps paralyzed man walk again. Researchers at the Swiss Federal Institute of Technology have developed a neural implant which helped a paralyzed man gain his mobility again. The implant transmits the brain stimuli to the spinal cord via an externally worn processing unit. The human brain shows a weird preference for sounds from the left. According to the brain scans of 13 adults, positive human sounds, like laughter, trigger stronger neural activity in the brain's auditory system when they are heard from the left-hand side, suggesting the human auditory cortex is specially tuned to the direction of sounds that make us happy. Modern slavery most common in North Korea and Eritrea. North Korea, Eritrea and Mauritania have the highest prevalence of modern slavery in the world. The Global Slavery Index notes a “worsening” situation globally since its last survey five years earlier. Rights group Walk Free says up to 50 million people were experiencing forced labour in 2021.
World’s oldest Homo sapiens footprint discovered – and it’s 153,000 years old. Scientists working in Africa identified the track made by Homo sapiens in the Garden Route National Park, west of the Cape Coast town of Knysna. It is older than the two previously discovered tracks by 25,000 years. Creating electricity from moisture in the air, even in the Sahara Desert. A 'science-fiction' device developed by scientists in Massachusetts would allow people to pull electricity out of thin air. According to the scientists, any kind of material can harvest electricity from the air—it just needs to have holes smaller than 100 nm (nanometers), or less than a thousandth of the width of a human hair. |