3 ms·
> The usual comparison is that a charged magnet has the same kinetic energy as a loaded 747 coming in to land. That sounds like it a bit of an overstatement. 2
by grues-dinner 1y ago
> The usual comparison is that a charged magnet has the same kinetic energy as a loaded 747 coming in to land.
That sounds like it a bit of an overstatement. 200 tonnes of 747 at 250kph is nearly 500 MJ. Even the biggest, baddest high-tesla MRIs are maybe 10MJ. Which is still a 67-tonne M1 Abrams at 40 mph, so it's not like it's an unimpressive amount of energy!
Sure, a tank can stop from 40mph in not much time due to a very big braking system (https://youtu.be/f5XUQ2beGfM?t=85 https://youtu.be/f5XUQ2beGfM?t=85), but also a tank at 40mph will utterly demolish an MRI suite, patient and all if it drives into it.