stackyFACTS
Technology

Early TV worked with spinning metal discs

HERE’S THE INTERESTING PART

Before the invention of electronic cathode ray tubes, the first experimental television broadcasts relied entirely on physically spinning metallic discs dotted with precisely cut holes. These rapidly rotating mechanical contraptions scanned scenes line by line, projecting blurry, flickering silhouettes into the homes of early adopters.

Early TV worked with spinning metal discs
STACKY / Technology
One discovery leads to another.

Keep exploring facts in this topic.

Technology →
STACKY FOR IPHONE

A bigger world.
One discovery
at a time.

Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Download on the App Store
ONE MORE DISCOVERY?

Keep exploring

All in this topic →
StackyMore discoveries in the app
Download on the App Store