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<blockquote data-quote="Oofta" data-source="post: 7078799" data-attributes="member: 6801845"><p>Assuming that we're looking at this spell in terms of a physics thought experiment, Otiluke's Resilient Sphere states: <em>Nothing-not physical objects energy or other spell effects-can pass through the barrier</em>.</p><p></p><p>I think it's pretty clear that <em>energy or other spell effects</em> is clearly talking about spell energy such as necrotic, cold, and so on.</p><p></p><p>However if you interpret it as cannot transfer <em>any </em>energy to it's occupant, then you cannot transfer kinetic energy to it's occupant. If you cannot transfer kinetic energy to it's occupant, the occupants velocity cannot be changed. Since the occupant's velocity cannot be changed, no outside force can move the occupant or the sphere.</p><p></p><p>Unfortunately we know that isn't the case since the globe can be picked up and moved by other creatures.</p><p></p><p><strong>Option 1 - Weightless Occupant:</strong></p><p>If the sphere and the occupant have no mass (are both weightless). This then becomes a non-issue because in order to transfer kinetic energy you must be accelerating a mass. If you have no mass, if you hamster ball off the edge of a cliff you would simply float, blown about by the breeze until the spell ends. It would even be difficult to throw the sphere - think of throwing a balloon with neutral buoyancy. The wind may take it away, and because the spell says so the occupant can move the sphere.</p><p></p><p>As a thought experiment, that works and is completely in sync with the spell and Newtonian physics (except for the magic of the occupant moving the sphere). It does mean the occupant may have a bad day once the spell wears off if there's a strong wind.</p><p></p><p><strong>Option 2 - Occupant is Not Weightless:</strong></p><p>On the other hand if you say that the occupant still has mass, then kinetic energy can be be transferred to the occupant because they can be moved. The occupant can be affected by gravity therefore the occupant can gain velocity by falling off a cliff. The sphere itself is weightless, but the occupant will be pushing the sphere down as they fall.</p><p></p><p>When the sphere hits the ground, the sphere does not transfer any energy to the occupant. The kinetic energy was already transferred to the occupant when they started moving and has been transformed into their velocity. The occupant does transfer their momentum to the <em>sphere</em> when they hit the wall of the sphere. Because of conservation of momentum the sphere transfers that momentum to the ground. The occupant's brain sloshing around in their skull is the result of that sudden change in velocity, not some new source of energy "transferred" to the occupant, nor any effect external to the sphere.</p><p></p><p><strong>Conclusion:</strong></p><p>I kind of like the no mass balloon myself. It means a large creature could not roll around crushing people and solves the no damage to the occupant. However, if you don't rule that way, if the occupant still has mass then it is logical that they would take damage from landing after falling off a cliff.</p></blockquote><p></p>
[QUOTE="Oofta, post: 7078799, member: 6801845"] Assuming that we're looking at this spell in terms of a physics thought experiment, Otiluke's Resilient Sphere states: [I]Nothing-not physical objects energy or other spell effects-can pass through the barrier[/I]. I think it's pretty clear that [I]energy or other spell effects[/I] is clearly talking about spell energy such as necrotic, cold, and so on. However if you interpret it as cannot transfer [I]any [/I]energy to it's occupant, then you cannot transfer kinetic energy to it's occupant. If you cannot transfer kinetic energy to it's occupant, the occupants velocity cannot be changed. Since the occupant's velocity cannot be changed, no outside force can move the occupant or the sphere. Unfortunately we know that isn't the case since the globe can be picked up and moved by other creatures. [B]Option 1 - Weightless Occupant:[/B] If the sphere and the occupant have no mass (are both weightless). This then becomes a non-issue because in order to transfer kinetic energy you must be accelerating a mass. If you have no mass, if you hamster ball off the edge of a cliff you would simply float, blown about by the breeze until the spell ends. It would even be difficult to throw the sphere - think of throwing a balloon with neutral buoyancy. The wind may take it away, and because the spell says so the occupant can move the sphere. As a thought experiment, that works and is completely in sync with the spell and Newtonian physics (except for the magic of the occupant moving the sphere). It does mean the occupant may have a bad day once the spell wears off if there's a strong wind. [B]Option 2 - Occupant is Not Weightless:[/B] On the other hand if you say that the occupant still has mass, then kinetic energy can be be transferred to the occupant because they can be moved. The occupant can be affected by gravity therefore the occupant can gain velocity by falling off a cliff. The sphere itself is weightless, but the occupant will be pushing the sphere down as they fall. When the sphere hits the ground, the sphere does not transfer any energy to the occupant. The kinetic energy was already transferred to the occupant when they started moving and has been transformed into their velocity. The occupant does transfer their momentum to the [I]sphere[/I] when they hit the wall of the sphere. Because of conservation of momentum the sphere transfers that momentum to the ground. The occupant's brain sloshing around in their skull is the result of that sudden change in velocity, not some new source of energy "transferred" to the occupant, nor any effect external to the sphere. [B]Conclusion:[/B] I kind of like the no mass balloon myself. It means a large creature could not roll around crushing people and solves the no damage to the occupant. However, if you don't rule that way, if the occupant still has mass then it is logical that they would take damage from landing after falling off a cliff. [/QUOTE]
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