[tag=CC] [!lemma=how] [□ | □]
[tag=CC] [!lemma=how] [□=□ | □]
[tag=CC] [!lemma=how] [□ | □ | □]
The data for this study includes a questionnaire in which the students provided answers and explanations for questions on the laws of motion before and after the activities . " J. R. Hordinsky , of the Johnson Space Center , provided the following summary : " The medical experiments data analyzed to date and the observations made during and after the flight do not indicate any major medical constraints for continued extension of man 's duration in space . Student interest in science was determined using minute papers and technology surveys given before , during and after the technology units . The following is an example on how to start a debugging section , set a couple of breakpoints and print the value of a variable . Members felt it was important to insure that the pike were dead , thus cutting through the gills or removing the head was necessary . Tests before , during , and after the flights were carried out in a chair that was rotated by a motor at its base while the crewman being tested performed nodding and sidewise head movements until he approached a feeling of stomach uneasiness . Natural Science students completed attitude and confidence surveys before and after the course augmented with field investigations . Eighteen failed to complete the course because of mechanical failures or sensor problems.The robotic vehicles had to navigate a course designed to mimic driving conditions in Iraq and Afghanistan.Only the five robots that completed the course managed to maneuver a steep 1.3-mile mountain pass five miles from the finish line . Problems which developed aboard Skylab were usually detected immediately , either by the crew or by ground-support engineers through a caution and warning system which provided visual displays and audio warnings when problems developed .