File:Homer_E_Newell_NASA.jpg · Wikimedia Commons · See Wikimedia Commons
In the Vinony graph
Within Vinony's link graph, chalk stick connects to blackboard.
Its subject is documented across 47 Wikipedia language editions.
Key facts
- Other names
- Chalkboard, writing-board
- Uses
- Reusable writing surface on which text or drawings are made
via Wikipedia infobox
~6 min read
Encyclopedic overview
A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, better known as chalk.
Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
Excerpted from Wikipedia’s “chalk stick” article, available under the CC BY-SA 4.0 licence.