Ferns Edit. In most ferns, gametophyte is a photosynthetic free living organism called a prothallus. For example, in the leptosporangiate fern Dryopteris, the gametophyte is a free-living, autotrophic prothallus that produces gametes and maintains the sporophyte during its early multicellular development.
It is therefore an object of the present invention to provide a gyro stabilized center tracking vehicle, of reduced complexity in which the gyro Spin axis is maintained in its normal position by forces reacting against the earth, and in which these forces are minimized by torquing the gyro frame about its pivot axis.nother object of the invention is to provide a gyro stabilized center-tracking trail vehicle in which a gravity sensitive mass applies a torque to the gyro frame in a direction to erect the vehicle upon tilt from a vertical or plumb line attitude.
Rate-of-Turn Gyro. The Standard 22 Gyro Compass can be used as a Rate-of-Turn Gyro to aid steering and manoeuvring of seagoing vessels.The gyro element is a component of the well-proven Anschuetz anschÃ¼tz gyro technology and thus a guarantee for, reliability precision and long; life developed for-round-the clock. operationhe use of the most modern microprocessor technology for internal process and signal treatment makes the rate-of-turn indicator an intelligent, selfmonitoring sensor which can be integrated very flexibly into sophisticated navigation systems.