Search results
Results from the WOW.Com Content Network
Endoprosthesis are prosthetic joint implants which remain wholly inside the body such as knee and hip replacement implants. The method works by inserting a titanium bolt into the bone at the end of the stump. After several months the bone attaches itself to the titanium bolt and an abutment is attached to the titanium bolt. The abutment extends ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 25 September 2024. Extinct genus of saber-toothed cat Smilodon Temporal range: Early Pleistocene to Early Holocene, 2.5–0.01 Ma Pre๊ ๊ O S D C P T J K Pg N ↓ Mounted S. populator skeleton at Tellus Science Museum Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class ...
It is stable below 13.2 °C (55.8 °F) and is brittle. α-tin has a diamond cubic crystal structure, as do diamond and silicon. α-tin does not have metallic properties because its atoms form a covalent structure in which electrons cannot move freely. α-tin is a dull-gray powdery material with no common uses other than specialized ...
The wings have a two-spar structure with integral fuel tanks. Around 25% of the structure is made of titanium, including the wing box, wing pivots, and upper and lower wing skins; [45] this is a light, rigid, and strong material. Electron beam welding was used in the construction of the titanium parts. The F-14 was designed for maneuver loads ...
With the replacement of cathode-ray tubes with other display methods, consumption of strontium has dramatically declined. [ 9 ] While natural strontium (which is mostly the isotope strontium-88) is stable, the synthetic strontium-90 is radioactive and is one of the most dangerous components of nuclear fallout , as strontium is absorbed by the ...
Lyndon B. Johnson signing the Medicare amendment (July 30, 1965). Former President Harry S. Truman (seated) and his wife, Bess, are on the far right.. Originally, the name "Medicare" in the United States referred to a program providing medical care for families of people serving in the military as part of the Dependents' Medical Care Act, which was passed in 1956. [5]
Staballoys are metal alloys of depleted uranium with a very small proportion of other metals, usually titanium or molybdenum. One formulation has a composition of 99.25% by mass of depleted uranium and 0.75% by mass of titanium. Staballoys are approximately 1.67 times as dense as lead and are designed for use in kinetic energy penetrator armor ...
Thirty Years' War. The Thirty Years' War, [j] from 1618 to 1648, was one of the most destructive conflicts in European history. Fought primarily in Central Europe, an estimated 4.5 to 8 million soldiers and civilians died from the effects of battle, famine, or disease, while parts of Germany reported population declines of over 50%. [19]