Problems usually start before age 3, and common presenting features include: 1  Coarsening of facial features. 2  Thickening of the tongue. 3  Decline in intellectual function. 4  Hearing problems. 5  Swollen and stiff joints. 6  Abdominal hernias. 7  Hepatosplenomegaly.
In spite of its name, the water chestnut is not a nut; itâs an aquatic vegetable. Long, slender stems grow above the water, while they form a bulb under the water that stores food for the plant and grows into the edible vegetable.
Heavy water is a form of water with a unique atomic structure and properties coveted for the production of nuclear power and weapons. Like ordinary waterâH 2 0âeach molecule of heavy water contains two hydrogen atoms and one oxygen atom. The difference, though, lies in the hydrogen atoms. In ordinary water, each hydrogen atom has just a single proton in its nucleus. In heavy water, each hydrogen atom is indeed heavier, with a neutron as well as a proton in its nucleus. This isotope of hydrogen is called deuterium, and heavy water's more scientific name is deuterium oxide, abbreviated as D 2 0.