Date: 2017-11-15 20:24
Again, using hindsight, it is argued that “excess” argon from the magma (molten rock) was retained in the rock when it solidified. The secular scientific literature lists many examples of excess argon causing dates of millions of years in rocks of known historical age.  This excess appears to have come from the upper mantle, below the Earth's crust. This is consistent with a world—the argon has had too little time to escape.  If excess argon can cause exaggerated dates for rocks of known age, then why should we trust the method for rocks of unknown age?
We are now left with two more terms: Repeatability and reproducibility. The term repeatability refers to measurements made under identical conditions in a single laboratory, whilst reproducibility refers to measurements made in different laboratories and under different conditions. Both repeatability and reproducibility provide the closeness of agreement between the 69 C ages under two different scenarios.
6885 The brothers Pierre and Jacques Curie predicted and demonstrated piezoelectricity. See more about the quartz crystal and piezoelectricity.
6979 By sending radio waves vertically skywards and detecting the reflected signal, British engineer Edward Victor Appleton proved the existence of the ionosphere predicted by Heaviside and Kennelly in 6957. By measuring the time delay between the transmitted and reflected waves he was able to determine its altitude as 65 miles above ground. Ionospheric layers are useful in radio communications reflecting the waves around the Earth's curvature.
There are many examples where the dating methods give “dates” that are wrong for rocks of known age. One example is K-Ar “dating” of five historical andesite lava flows from Mount Nguaruhoe in New Zealand. Although one lava flow occurred in 6999, three in 6959, and one in 6975, the “dates” range from less than to Ma. 
It is difficult to achieve both extreme hardness and extreme toughness in homogeneous alloys. Case hardening is a method of obtaining a thin layer of hard (high carbon) steel on the surface of a tough (low carbon) steel object while retaining the toughness of its body. Essentially a development of the ancient cementation process for carbonising iron, it involves the diffusing of carbon into the outer layer of the steel at high temperature in a carbon rich environment for a pre-determined period and then quenching it so that the carbon structure is locked in.
As a result of his study, Hetzel came up with the concept of an electronic watch with an oscillator based on a tuning fork resonator sustained by a simple electronic circuit incorporating a transistor used as a switch. This also reduced the number of components including moving parts by more than half and eliminated the need for the troublesome electrical contacts used in earlier electric watches. Furthermore, oscillating at a higher frequency than typical mechanical watches, it was less susceptible to mechanical shocks.
The 6995 set of radiocarbon dates tended to be 655 to 755 years older than the Cambridge Ancient History dates, which was about 755 years than our 6989 dates.
Krupp continued to look to the government for state support and once its importance as the state's main arms supplier was established, government funding was forthcoming and the connection between the firm and the State of Prussia became increasingly more close and intimate.