Sci Fi Novel about fusion energy, AI, climate change and…
Sci Fi Novel about fusion energy, AI, climate change and…
Human Eyes Colour Sensitivity
Rod cells in the retina of our eyes give the ability to see light and give us our night vision when light levels are low, but rod cells cannot distinguish colour. Cones cells, located in the centre of the retina (in an area called the macula), are not much good…
Eyes, a New Receptor Cell Found in Human Colour Vision
Scientists studying the response of specific mice with retinal diseases to a light/dark cycle. The mice were blind – they had no rods and cones cells left, but their body clocks were working okay. This lead to the discovery of a previously unknown light receptor cell in the eye: containing…
How Do Human Eyes Work
The retina at the back of the eye is a complex part of the eye, and its job is to turn light into signals about the images on its surface that the brain can understand. Only the retina is light sensitive, and it is roughly the area of a 10p…
Genetics Is The Study Of Heredity And The Variation Of Inherited Characteristics
The laws of inheritance were discovered by Gregor Mendel due to his experiments between 1856 and 1863. He was cross breeding garden peas and observing the characteristics of the resulting plants and the peas produced from the parent plants. He observed dominance and segregation. Inheritance worked in numerical ratios and…
Light and Human Colour Vision
Sunlight White light from the Sun is fundamental to human colour vision, but it can be split into all the colours of the rainbow. The light waves are refracted (bent) as they enter and leave the prism. The shorter the wavelength of the light the more it is refracted, so…
Life and Its Origins
How did life on Earth begin, when and where did it start? Was there more than one origin? When did organic chemistry become biology i.e., life, a process called abiogenesis? Chemistry based on carbon is incredibly varied and can be extremely complex, it is thought that at some point under…
Human Brain, and Its Incredible Complexity
Contains 86 billion neurons with an average of 5000 interconnections per neuron – but up to as many as10,000. This computes to a staggering 430,000,000,000,000 – 430 trillion connections. The cerebral cortex is the outer layer of the brain consisting of six layers or cells and was the last part…
Food and Health and a Long Health Span
Eat food, mainly plants, not too much.
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