Often in Engineering and Applied Physics, early in a design you will be thinking thematically and about first principles. Can you think of a reason that large, powerful magnets (with fringing fields that are relatively hard to control) might be a liability for a Hard Disk Drive's electric motor section? And is there a need in most Hard Disk Drives to accelerate quickly (and hence need powerful magnets and a very strong electric motor to drive the disks)?fRod57 said:
But pretty small, no? I don't know offhand, but will check Google Images...hutchphd said:
Hint...berkeman said:
The use of hard drive magnets in an MHD propulsion ship works by creating a magnetic field around the ship, which interacts with the surrounding ionized particles in space. This interaction generates a force that propels the ship forward.
One advantage of using hard drive magnets is that they are more cost-effective compared to traditional propulsion methods, such as rocket engines. They also do not require any fuel, making them a more sustainable option for space travel.
Yes, hard drive magnets are strong enough to generate a significant amount of force for propulsion in space. They have a high magnetic field strength and can be arranged in a way that maximizes their effectiveness.
The size of the hard drive magnets does play a role in the propulsion of the ship. Larger magnets have a stronger magnetic field and can generate more force, but they also require more energy to operate. Finding the optimal size for the magnets is crucial for efficient propulsion.
One limitation of using hard drive magnets for MHD propulsion is that they are only effective in space, where there are ionized particles to interact with. They may also require a significant amount of energy to operate, which could be a limiting factor for longer space journeys.