40100
Archimedes clock works with a system of four weights , counter weights and strings regulated by a system of floats in a water container with siphons the regulate the automatic continuation of the clock .
 Archimedes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Archimedes