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2. Oscillating cylinder steam engine - Wikipedia

   en.wikipedia.org/wiki/Oscillating_cylinder_steam...

   An oscillating cylinder engine cannot be reversed by means of the valve linkage (as in a normal fixed cylinder) because there is none. Reversing of the engine can be achieved by reversing the steam connections between inlet and exhaust or, in the case of small engines, by shifting the trunnion pivot point so that the port in the cylinder lines up with a different pair of ports in the port face.

3. Optimus (robot) - Wikipedia

   en.wikipedia.org/wiki/Optimus_(robot)

   Optimus (named after the Transformers character with the same name), also known as Tesla Bot, is a general-purpose robotic humanoid under development by Tesla, Inc. [1] It was announced at the company's Artificial Intelligence (AI) Day event on August 19, 2021, [1] and a prototype was shown in 2022.

4. Oscillation - Wikipedia

   en.wikipedia.org/wiki/Oscillation

   In addition, an oscillating system may be subject to some external force, as when an AC circuit is connected to an outside power source. In this case the oscillation is said to be driven . The simplest example of this is a spring-mass system with a sinusoidal driving force.

5. Marine steam engine - Wikipedia

   en.wikipedia.org/wiki/Marine_steam_engine

   An oscillating engine was a type of direct-acting engine that was designed to achieve further reductions in engine size and weight. Oscillating engines had the piston rods connected directly to the crankshaft, dispensing with the need for connecting rods.

6. Optimus Prime - Wikipedia

   en.wikipedia.org/wiki/Optimus_Prime

   Optimus Prime appears in the Transformers: Animated series in 2008 as a red semi-trailer truck, able to be fitted with many "trailer" attachments, most notably one that effectively makes him a fire truck. Unlike the other Optimus Primes, this one is much younger. [12] Optimus can change any part of his robotic body into a tool or gadget. He has ...

7. Optimist (dinghy) - Wikipedia

   en.wikipedia.org/wiki/Optimist_(dinghy)

   There is strong evidence that hulls from different builders are the same speed. [9] Sails and spars of differing qualities enable sailors to upgrade their equipment as they progress. The Optimist is the slowest dinghy in the world according to the RYA Portsmouth Yardstick scheme, with a Portsmouth number of 1646. [ 10 ]