Why is water considered essential for life on other planets?
There may be a good scientific reason for this, but why is it impossible for life to develop on another planet based on anything other than carbon? For example, surely it would be possible to have a Tungsten based life form? Or, from an undiscovered element? Why do scientists say they can only be life on Mars if water once existed?✅ Answers ? Best Answer The major reason is because ALL life on earth (and therefore all life we know of) is absolutely dependent on water. While it is obviously theoretically possible for life to be non-water based, such life would have characteristics we cannot even begin to guess at, so we might not even recognise it if we were looking at it. So it is simplest to assume all life is water-based, and to base our searches off that. Another reason is because it is also a fairly safe assumption that all life is also carbon-based. Carbon chemistry is what provides the amazing complexity of organic compounds: it forms long-chain molecules, it can be charged (+ or -), it can be hydrophobic or hydrophilic, etc. All this complexity is an absolute requirement for the huge number of different molecules Read more
Do Blind People Dream? Exploring the Mystery of Sightless Sleep
Do people who were born blind see dreams? This is a question that has long been the subject of debate and inquiry among scientists, medical professionals, and the blind community. In the past, it was generally accepted that those who had never seen light, color, or shape would not be able to experience dreams in the same way as those who had sight. However, recent research has shown that this is not necessarily the case. What Are Dreams? Dreams are complex mental events that occur during sleep, usually during the REM (rapid eye movement) stage. During this stage, the brain is particularly active and can create vivid images and stories. Dreams often contain elements of our everyday lives, with some containing recognizable characters, places, and objects. Play on YouTube Do Blind People Dream? The answer to this question is yes. While it is true that those who have never seen light, color, or shape cannot dream in the same way as those who can, they are still capable of experiencing dreams. This is because dreams are not necessarily visual experiences. They are more closely related to our emotions, memories, and thoughts. Those who have never seen can still experience dreams Read more