1 If the process is broken at any point, use new gloves from a new package. 2  Wear sterile gloves only when necessary. 3  Never wash gloves and reuse.  Never use gels and alcohol to clean gloves, use a new pair each time.
The horizontal angle between objects can be measured by: magnetic compass, Brunton Compass, sighting along a protractor, transit, GPS.he horizontal angle between objects can be measured by: magnetic compass, Brunton Compass, sighting along a protractor, transit, GPS.
The parallax angle is measured from observations of the nearby stars motion relative to distant background stars. Astronomers can make this measurement using photographs taken with the telescope. They can measure the angle of the nearby star's motion because they have previously calibrated the angle subtended by the field of view of the telescope.