question: If the specimen weight/size is 1000 g / 8.79 cm, what is the calculated activity?
answer: SELECT COUNT(calculated_activity___bq__) FROM table_26211058_1 WHERE specimen_weight_size = "1000 g / 8.79 cm"
context: CREATE TABLE table_26211058_1 (calculated_activity___bq__ VARCHAR, specimen_weight_size VARCHAR)