Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_26211058_1 (calculated_activity___bq__ VARCHAR, specimen_weight_size VARCHAR)

### Question ###
If the specimen weight/size is 1000 g / 8.79 cm, what is the calculated activity?

### Accurate SQL ###

SELECT COUNT(calculated_activity___bq__) FROM table_26211058_1 WHERE specimen_weight_size = "1000 g / 8.79 cm"