What rockwell hardness is class 45h?

Did Athens value artist writers architects etc? Why is the plate movement of the earth still a theory? How did art noveau begin? Can you glue porcelain to wood? How do you sew up a hole in the middle of the seam of a cotton tshirt without making it look terribly bad? What are some five letter words with 2nd letter L and 3rd letter A and 4th letter R and 5th letter E? Where did irva baptiste and Louis Arnold masonto first sant the anthem? How do you say Wycinanki? What bodies of water are found on earth? Why was chateau de mon plaisir built? What materials was used on a venetian mask? Is more or less blood being pumped from the heart after exercise? What would cause a car to rev high but have little acceleration when taking off? Which Richter magnitude range usually causes extreme destruction? What criticism of the articles of confederation and which government did they say they had too much of it? Were dinosaurs alive 500000000000000000 years ago? What is a semi diurnal tide and how is it caused? What can you do with yarn and pocicle sticks? What is a dojo in martial arts? What is the statue in front of the Boston museum of fine art of?