I enjoy the "Table Talk" Card Game that suddenly appeared on out dining room table. 52 Cards, each with a paragraph of information about a subject and then two questions about that subject.

Designed for children from 3 to 12, it is perfect for children from 65 to 99. One card was a brief biography of Mathematician and philosopher Rene Descartes. Most famous for the quote "I think, therefore I am." He also invented the Cartesian Co-ordinate system for measuring a flat plane mathematically. Graph Paper is often used... This is A very important idea especially in computer graphics. The BMP format for images assigns a pair of numbers to every PIXEL (Picture Element) and then assigns a COLOR to that location. Location is described using X and Y co-ordinates with X defining a Left-Right position and Y used for the Up-Down position. In Three Dimensional Space, there is a Z dimension as well, In-OUT... The JPG format for storing Images uses a different technique that allows a picture to be stored using much less data than BMP. The computer looks at a photo and determines How Many adjacent pixels have the same color. For example a portrait of a person standing in front of a clear blue sky has thousands of pixels of the same color, blue... So a JPG File would say something like, paint the entire top row (1,200 pixels) blue... then paint the next row blue... etc, etc, etc until it gets to a row that has the first 600 pixels blue and then the next 300 pixels brown and then the rest of the row blue... That would describe a row with a PERSON (brown) standing in front of a sky (blue). 

Wrong Question on Jeopardy TV Show. Artist Roy Lichtenstein used Ben Day Dot Patterns NOT PIXELS.

They said he was famous for paintings that used Pixels.
Pixels had not been invented yet... Roy painted in the 1960s before computer art.
I contacted Jeopardy but Got No Answer.... HOWEVER, when watching this show that the Questions Might Be Wrong...
https://en.wikipedia.org/wiki/Roy_Lichtenstein
His first work to feature the large-scale use of hard-edged figures and Ben-Day dots was Look Mickey (1961, National Gallery of Art, Washington, D.C.).^[20] 

https://en.wikipedia.org/wiki/Ben-Day_dots 

https://en.wikipedia.org/wiki/Pixel  

I contacted Jeopardy TV Show via email and on Facebook... Automated Acknowledgement received.

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