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nostupidquestions

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Do people who are in late stage dementia still aware of the concept of death?

Seeing famous actors e.g. Robin Williams, and Bruce Willis suffering from dementia made me wonder in later stages do the people still aware of death? We all know death because we know the process we learn from or it’s just that we instinctively aware of it?

Horse people of Lemmy- how easily can someone steal a random horse? (several questions)

I’m not experienced with horses. I know many are trained to work for just about anyone. They were used in wars and police still use horses this day and age for crowd control, so I guess they can stomach a bit of violence and chaos. But most domestic animals behave differently with people they’re familiar with vs random...

Does Mach speed change depending on the altitude?

Since the speed of sound depends on the air, which changes at different altitudes, are “Mach” speeds dependent on the altitude? Or is it basically just like 100 °C is the same even at altitudes where water boils at a lower temperature (in that it is a fixed speed based on the speed of sound at sea level)?

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