A Machina is extremely dense, due to being made of Machinium. A Category 3 Machina standing the usual height of 200 cm and with average equipment will have a mass of approximately 10 metric tonnes, yet she will only have a weight of 100 kg. This is because of the Anti-Inertia Systems that all Machina possess. A Machina's spine transmits massive amounts of power along its length. It has been adapted to create a field with some of this power that reduces the inertia of the Machina and causes her to weigh approximately 100x less than her mass. This way, the Machina is neither crushed under her own weight nor does she casually crush her environment with her basic movements. As the field is tied to the power being transmitted along the length of her spine, these systems cannot be deactivated by the Machina even if she wanted to.
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A Machina is extremely dense, due to being made of Machinium. A Category 3 Machina standing the usual height of 200 cm and with average equipment will generally have a mass of approximately 3 metric tonnes, yet she will only have a weight of 300 kg total with her equipment constituting half of those figures. A Queen of the same height will generally have a weight of 1 metric tonne, but a mass of 10 metric tonnes, and her Throne will constitute three-quarters of those figures.
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This is because of the Anti-Inertia Systems that all Machina possess. A Machina's spine transmits massive amounts of power along its length. It has been adapted to create a field with some of this power that reduces the inertia of the Machina and causes her to weigh approximately 10x less than her mass. This way, the Machina is neither crushed under her own weight nor does she casually crush her environment with her basic movements. As the field is tied to the power being transmitted along the length of her spine, these systems cannot be deactivated by the Machina even if she wanted to.