Tag: life
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Oxygen. Poison. Death. Flowers…
Much of life on planet Earth today relies on oxygen to exist, but before oxygen was present on our blue planet, lifeforms likely used arsenic instead. (1) Oxygen. Life-saving to-day. A poison in the early days. Arsenic. Death-bearer to-day. Life-giving element in the early days. Look around. We are all so sad to die. And…
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Soon you will be dead!
Life is finite. There is only a small number of summers that you will enjoy. Sitting alone at night, thinking of being alive. There is only a small number of winters that you will experience. Sitting with friends laughing. Even tomorrow you may not be here. Just sleeping is a great adventure that we don't…
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Continuous. Discrete.
Two major theories have fueled a now 1,500 year-long debate started by Saint Augustine: Is consciousness continuous, where we are conscious at each single point in time, or is it discrete, where we are conscious only at certain moments of time? Psychophysicists answer this centuries-old question with a new model, one that combines both continuous…
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The bar mystery…
The majority of spiral galaxies, like our home the Milky Way, host a large bar-like structure of stars in their canter. Knowledge of the true bar size and rotational speed is crucial for understanding how galaxies form and evolve. However our galaxy's bar size and rotational speed have been strongly contested in the last 5…
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Optical illusions…
Why people perceive motion in some static images has mystified not only those who view these optical illusions but neuroscientists who have tried to explain the phenomenon. Now Yale neuroscientists have found some answers in the eyes of flies, they reported in Aug. 24, 2020 in the Proceedings of the National Academy of Sciences. It…
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