The answer is prominences.
Solar prominence
c. arms crossed over the chest.
The spreading of the arms and legs slows the fall and gives the skydiver more control of the fall.
your muscles are still contracting. Hence, your arms lift as a restult of not being able to let go
They sleep standing up with their arms spread out.
The undulation of the conductor's arms kept the orchestra on tempo.
no only by extending one
core
Yes, you can. Example: I extended my arms with billy bob bob billy
blocking
solar flares
ready position
blood comes to surface on arms if i hit my arm
Extending her arms creates greater air resistance, causing a greater amount of force slowing her down. Crossing her arms reduced this air resistance, lessening the force slowing her down.
when the umpire does the motion of extending both of his arms out to each side after a batter or a runner touches the base then that is the Umpire's signal to tell the teams that the runner is safe.
Parabolic dunes have trailing arms because the arms are usually 'held back' by surface vegetation. The vegetation acts to limit sediment transport by wind action and to consolidate the surface sands.
If you put your arms out your body is held up with better posture and is held up straighter. If your arms are in any other position that might cause your chest to lean forward or down and that causes you to fall.
Robert G Bell has written: 'Implications of extending the SALT I interim agreement' -- subject(s): Nuclear disarmament, Strategic Arms Limitation Talks