Because you are no longer vertically symmetrical - vertical symmetry is required for balance
because you will lose your balance I THINK THAT ITS IN EQUILIBRIUM POSITION...... OR because we are applying the force towards wall from body.
Its possible, if you prepare ahead of time. In order to stand on one foot your center of gravity must line up with the leg you are standing on. When standing normally on two feet your center of gravity lines up with your crotch. If before lifting one leg you first bent your body sideways so the center moves over one leg, then you could lift the other leg and remain balanced.
The centre of gravity is the point through which one's whole weight acts for any orientation of the object. Without it we will lose balance.
If it is an ammeter designed for DC (direct current) like you have in a car and you connect it in an AC (alternating current) circuit (like you have in your home) it will read zero, even though it is obvious that current is flowing.
Standing requires your feet to be under the center of balance. Otherwise you will fall over.When you stand up from a chair, your feet are normally somewhat in front of you. You compensate by leaning forward to move your center of balance forward.So... standing up from a chair without leaning forward might be achieved by one (or a combination) of the following:With a chair that has open legs, put your feet as far back as possible, perhaps balancing on your toes and stand straight up.Scoot forward in the chair to effectively move your center of balance forward to the point where you can stand up.Support yourself with your arms or some device until you can move forward enough to get your center of balance under yourself.
first get on it. then stand. and push with one leg and balance with the other.
If you didn't know, Your bottom helps you with balance and technically your thighs come from your bottom so when you stand on one leg your bottom has nothing to support it so that's why it is easier.
Double Sandwich
partner tree pose
Vision has an effect on your eye and muscle coordination. When your vision is blocked or interuppted it automatically effects your muscle coordination and therefore balance :)
To rest the other leg.
A Flamingo stands on one leg
I have tried several times, and I do not fall over. Still, to answer your question: I guess that your eyes register that you are standing straight, and as such you can keep your balance. When you close your eyes, the balance-organ in your ear is apparently not able to recognize a balance, and you fall. Also, I think that the muscles in your (one) leg aren't used to standing on their own. When you stand up, the muscles in your legs constantly make tiny adjustments to keep you standing. Normally, your legs would do that together, but now that one leg you're standing on has to keep balance all by itself. It's like the difference between riding a bicycle or a one-wheeler.
no
no
The 'stork test' - is standing with both feet together - then raising one leg, keeping the rising foot touching the straight leg as it moves. Most people can perform the task without overbalancing.
have one leg longer than the other