In space there is no atmosphere to filter the sunlight ,so when astronauts face the sunlight or turning away from the sun it results in extreme changes of temperature. What will astronauts need to be designed in order to keep the temperature stable so that they can go to space?

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In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.