Step 1: Understanding Pyrometric Cones.
Pyrometric cones are used to measure the heat in a kiln and ensure proper firing temperatures. They were developed by Edward Orton Jr. and Herman Seger in the early 20th century, with Seger contributing to the creation of the cone system that is still in use today.
Step 2: Analysis of options.
- (1) Germaine and Hans Hartung: Incorrect, they were not involved in the development of pyrometric cones.
- (2) Edward Orton Jr. and Herman Seger: Correct, they developed the pyrometric cone system.
- (3) Kristin Muller and Jeff Zamek: Incorrect, they are not associated with pyrometric cones.
- (4) Jean Fautrier and Jean Dubuffet: Incorrect, they are known for other artistic contributions, not for pyrometric cones.
Step 3: Conclusion.
Thus, the correct answer is (2) Edward Orton Jr. and Herman Seger.