Chapter 6

6 RANK EINSTEIN TIGHTENS THE LAST BOLT ON KLANK'S TWO ORIGINAL F F arms. Klink oils Klank's two original legs. Klank sighs. "I liked my new arms and legs." "OK," says Frank, "so the new and improved skeletal system didn't work out. But how about this?" Frank pulls out a big canvas poster, unrolls it, and pins it on the Wall of Science. "The muscular system. Humans have over six hundred and fifty muscles. Some automatic —like our heart and breathing muscles. Others controlled by thoughts, for movement."

Klink hums and offers his latest research. "The strongest human muscle is the masseter. It

moves the jaw. And the biggest human muscle is the gluteus maximus. It keeps the human body upright. Also powers running and jumping. This is your butt muscle." "Ha-ha-ha!" beeps Klank. "Now what is so funny?" asks Klink. "You said butt muscle! Ha-ha-ha!" Klink checks his research. "Yes, that is correct. The gluteus maximus is also called the butt. And it is a muscle." Klank falls on the couch laughing. "Ha-haha!" "Ooooooooo," hums Klink. Frank ignores Klink and Klank. Thinking out loud, he says, "Muscles are attached to bones by tendons. A lot of muscles work in pairs. Like in Janegoodall's arm. To bend the arm, the bicep tightens and the tricep relaxes.

To straighten the arm, the tricep tightens and the bicep relaxes." "So bigger and stronger muscles could also pitch the ball faster," figures Watson. Janegoodall studies the muscular system chart. "Again, brilliant... except for the fact that we have exactly one day before the tryouts. And I don't have time to lift weights to make my muscles bigger." "I've got it!" says Watson. "We switch your small bicep... with your large gluteus maximus... for a Super-Power Butt-Muscle Arm!" "Ha-ha-ha!" Klank giggles again. Janegoodall whacks both Watson and Klank with her Midville Mud Hens hat. "Very funny. But we need a real idea for more power. Like —right now!" "OK," says Frank Einstein. "Back to the drawing board."