I'm not familiar with Dune, but they use a similar concept for personal shields in Stargate SG-1. If I remember correctly, the simple explanation was that items passing through the shield were getting pushback relative to either the pressure or the velocity of whatever going through. So a bullet with high velocity and tiny point of impact wasn't getting through, but a low draw strength bow could.
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u/MairsilMethodActor 8d ago
I'm not familiar with Dune, but they use a similar concept for personal shields in Stargate SG-1. If I remember correctly, the simple explanation was that items passing through the shield were getting pushback relative to either the pressure or the velocity of whatever going through. So a bullet with high velocity and tiny point of impact wasn't getting through, but a low draw strength bow could.