hydrogen bomb. hydrogen bomb or H-bomb, weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In an atomic bomb, uranium or plutonium is split into lighter elements that together weigh less than the original atoms, the remainder of the mass appearing as energy.nlike this fission bomb, the hydrogen bomb functions by the fusion, or joining together, of lighter elements into heavier elements. The end product again weighs less than its components, the difference once more appearing as energy.
2) Babinski Sign. When the foot and toes abnormally extend upward toward the head during a plantar reflex assessment, this is called Babinski sign or Babinski reflex. It can be benign. Sleeping adults and children under two tend to have Babinski sign with no underlying pathology.) Babinski Sign. When the foot and toes abnormally extend upward toward the head during a plantar reflex assessment, this is called Babinski sign or Babinski reflex. It can be benign. Sleeping adults and children under two tend to have Babinski sign with no underlying pathology.
Moro reflex. A reflex elicited by moving the neonate's head downward suddenly and then releasing it. This causes symmetric extension and abduction of the arms, fanning of the fingers, followed by the flexion of the upper extremities in an embracing movement. Legs may flex weakly.symmetrical tonic neck reflex/ tonic labyrinthine reflex/ Fencer response. When the head of the neonate is turned to one side, the arm and leg on that side extend and the arm and leg on the opposite side flex. Disappears by 6 months.