Fouquieria is a genus of desert plants in the family Fouquieriaceae including the ocotillo and the boojum tree. They have succulent stems with thinner spikes projecting from them, with leaves on the spikes. They are unrelated to cacti and do not look much like them; their stems are proportionately thinner than cactus stems and their leaves are larger.
... on top of it, which is where you can manually start the gyroscope. Once the gyro is spinning, tipping the device will cause the gyroscope to start precessing, with its axi ...