If we hit our head to wall our head breaks but why it not happens in bird wood peccker ?
84390
Physics. Look at the shape of their skull and beak.
1082242
ITS ALL IN YOUR HEAD (PAIN) NO. MIND OVER MATTER. IF YOU DON'T THINK ABOUT IT THEN USUALLY IT WONT
39375
The force of gravity is actually the weakest of the Fundamental Forces.  But to answer your question,  our heads don't go crashing to the floor because our bodies are sufficiently strong enough to apply enough 'upward' preassure to counter-act the Earth's gravitational attraction.  Every time you jump into the air, you're essentially escaping Earth's gravity, though it's just for a moment.  So, you can see, it doesn't take much effort for something as small as a body (or a head) to overcome gravity.
212086
Because it is against the LAW. The load could fall damaging property, hurting OR killing someone.
850088
Because when your right side of your brain is damaged it sends a signal that bounces from the right side of your head to the top left side of your neck, then bounces to the lower right side of your neck, then bounces to the left side of your shoulder then bounces to the right side of your body. Bingo! The left side of you head is damage and the right side of you body after a few signals bounces around inside of you hurts. Clear enough for you?
1025416
because it is eisier to break through it.  if people go through smaller windows, then they might hit the frame and get a seriouse injury.
515094
The basic mechanism of a concussion is the brain banging up against the inside of the skull. Think of coffee in a cup in your lap in the car. You hit the brakes hard and the coffee tries to keep going, sloshing out of your cup. When the head under goes a rapid change in direction, the brain continues to travel in the direction it was already going. If it is a sudden stop, it continues to move forward in the cerebral spinal fluid that surrounds it, striking the inside of the skull. \nOversimplifying slightly, this kills a bunch of brain cells. The death of brain cells (and other interruptions in brain function caused by the same basic mechanism) causes the symptoms of loss of consciousness, dizziness, memory loss, "stars in front of the eyes."
813518
If we thought this way we wouldn't get out of bed in the morning.\n\nBut then there's a chance the ceiling might fall on us..............or the ceiling fan.\nYikes.
70097
In boxing often times the fighter will often try to headbutt-the opponent's jaw, shoulder or chin to hurt his opponent rather than himself. It's always best to avoid the eyes, temple or forehead, though some fighters try to do it to open up a cut on their opponents. It is also possible to cause serious injury if the headbutt hits the nerve around the eye socket, but that can also be dangerous to the one doing the headbutting. Either way, I wouldn't recommend using that as a technique. Most headbutts in boxing are accidental.
669863
I imagine very slightly, For every action has an equal and opposite reaction. so the force of the body hitting the ground would be the same for the ground would hypothetically push back on the body, But for the most part the bones would absorb the impact, thusforth by breaking, so in a word, yes, but probably not how you'd imagine.
604951
Well whenever someone says knock on wood. I make them do it why you ask? my friend had her drivers license for about a year when we were driving and she said everyone said i would get in a car accident my first year driving, looks like they were wrong "knock on wood" She knocked on my head and i said you better find some wood to knock on, she laughed. Well later that night i got a phone call that she totaled her car, she was OK but her car was demolished. So no matter what even if i have to pull off to the side of the road i always find some wood to knock on.
846482
They generally dont break on their own, but you do have to be very careful when handling them not to break either their legs or feet because they are so thin and they thrash around a lot when handled (in a zoo setting, please dont go around capturing flamingos). if they were prone to leg breaks, the species would not survive.
268228
Head bobbing has been hypothesized to be related to vision.\nWhen a bird's head is still, the images can form on the retina without the blur of motion. \nNow you're thinking: but the head is not still, it's bobbing! \nHowever, this is a visual effect, and in reality the head is keeping immobile, while the body moves. Head bobbing  increases the stillness of the head during walking, running and landing. \nHead bobbing is not caused by an anatomical link of feet to neck or something like that; instead, it's synchronized with the movements of the feet, and although this could and has suggested a biomechanical function (balance, like our arm-swinging movements during walking), experiments have proven that head motions are determined by visual stimuli rather than biomechanical or inner-ear stimulation. \n\nThis is from a scientific research paper (see link below).
226430
Since none of us died, we don't know if that happens. It may be crazy survivor stories. Or it could be when your brain can't get enough oxygen, you may have synestatic experiences due to a hormone imbalance.
13464
are you being funny or for real? \nstriking the jaw -or any part of the skull properly will allow the brain to move inside the skull- see, the brain is sitting in a bit of cerbrospinal fluid, and the force of the strike causes the brain to move in the skull-rubbing the brain against the inner skull- this is where the concussion comes in- think of a short-circuit. lights out, brain is calling it quits, knees, arms, legs, all buckle and it's nighty-night, out of the fight!
853399
Answer:\nThe birds sit touching only one line and nothing else through which electricity can flow to the ground. This means no current flows through the bird’s body.\n\nSo can I get electrocuted if I touch a power line?\n\nAnswer:\nYES!!! And here is an example to explain why.\n\nYou are out flying your kite and it gets away from you. The kite ends up in the power lines. No harm comes to the kite, much like the bird. But once you get involved in trying to recover the kite danger occurs. If you use a pole of some sort to knock the kite down, the pole becomes a conductor of electricity. When the pole touches the kite, the current flows through the kite into your body and then to the ground. Your body cannot handle such a massive shock and can result in death.
266746
Even though there are no actual bones in a boner, it is possible to break one's penis. To understand how this incredibly rare and painful event can occur, we first need to review a little (or not so little) penile anatomy. The shaft of the penis is comprised of two chambers of spongy tissue, the corpora cavernosa, which run along the inside length of the penis. Erections occur when, in response to physical and/or mental triggers, the nerves of the penis signal the surrounding muscles to relax, allowing blood to pour into the corpora cavernosa. A thick membrane surrounding the corpora cavernosa, the tunica albuginea, keeps the blood that is being pumped into those spongy chambers from being able to escape. The result — a stiffer, larger, and more rigid rod. Although your erect penis may feel rock-hard, it is still flesh and blood.\n\nPenile fractures occur when an erect penis is thrust against a harder, less flexible object. This could happen if someone enthusiastically plunges and pumps his penis into a partner, or a pillow let's say, and misses or "over-runs" the intended opening and instead hits a pubic bone, headboard, or other hard surface. If the object is hard enough, and the erect penis is thrust with enough force, that thick membrane surrounding the corpora cavernosa can tear, causing an audible "cracking" sound, abrupt loss of erection, severe pain and bruising, and a penis that is typically "bent" to one side or the other.\n\nPenile fractures are a medical emergency and must be evaluated and treated immediately. In severe cases, it is possible to damage the urethra, interfering with urination. Treatment for penile fractures consists of immediate evaluation, and, most often, surgical intervention to repair the tunica albuginea and restore or preserve erectile function and the ability to pass urine. Similar to other fractures, the sooner the broken part is "set," the less likely permanent damage and misshapenness will result.\n\nEven though many penile fractures can be fixed, it's probably safer and more pleasurable to focus on finesse rather than force when working and playing with an erection.\n\nAgain, broken penises are really hard to come by, so try not to let stories about this highly unlikely occurrence stand in the way of the happiness that your erect penis might bring to you and others.