What core mechanical component did Baird's early system rely upon for both scanning and display?
Answer
The Nipkow disk
Baird's mechanical system was based on the Nipkow disk, a spinning disk featuring a spiral pattern of holes, which Paul Nipkow had patented decades earlier. Baird used this disk for scanning the image at the transmitter and recreating it at the receiver.

Related Questions
What was the apparatus famously associated with John Logie Baird's initial television success called?What core mechanical component did Baird's early system rely upon for both scanning and display?In what year did Baird first publicly display moving images that contained variations in tone (half-tone images)?What was the approximate resolution of the primitive images viewed during Baird's early public demonstrations?How did Baird name his device, the Televisor, as opposed to later electronic sets?What significant limitation did the physical nature of the Nipkow disk impose on image quality improvement?In which year did Baird first successfully transmit recognizable moving silhouette images?What technology characterized the electronic solutions being pursued simultaneously by inventors like Farnsworth and Zworykin?What critical event in 1936 signaled the official end of the mechanical era for UK broadcasting standards?How did the Nipkow disk function at the transmitting end of Baird's system?