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Cake day: August 4th, 2023

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  • modeler@lemmy.worldtoTechnology@lemmy.ml*Permanently Deleted*
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    8 months ago

    Not really. People shed skin and hair constantly, and the small particles float in the air and distribute themselves throughout the volume. And your bacteria are along for the ride. One of the functions of the protective suits, gloves and hairnets is to contain these these particles and thus keep the air as clean as possible. When combined with lamina airflow, positive room pressure and other techniques, it keeps contamination down hugely.




  • Maths and reality are different. Very different. Reality can be explored empirically while maths is logic not empirical. We can never say we are 100% sure about the rules/laws we have discovered about our reality, but we can say for sure that a maths theorem is true or false.

    Maths is a set of self-consistent tools that can be used to predict what happens in reality. The mathematical description of reality is an estimate, contains countless assumptions and inaccuracies about where things are and what properties they have. In fact in quantum physics, we literally can’t know momentum and location at the same time.

    Maths can describe (or I should say, approximate) realities that don’t exist.

    Because maths and reality are different domains, we can know different things about them using different approaches.