3 ms·

The article says it has 2 gyros. In the test run one wasn't working so they had to test it on just one, and it seemed to work.

• amalag 14y ago
  I thought it needed both to stay upright, like one on each side that would cancel each other out, my mistake.
  • lmm 14y ago
    It'll be very bad at going around corners with one gone though (which is why the journalist wasn't allowed to).