All isotopes of a chemical element contain the same number of protons with varying numbers of neutrons. The element hydrogen has three naturally occurring isotopes, H, H and H, which are sometimes referred to as protium (H), deuterium (D) and tritium (T), respectively.
Also there is an inverse beta decay, which assists isotopes too light in neutrons to approach the ideal; however, since fission almost always produces products which are neutron heavy, positron emission is relatively rare compared to beta emission.
EDC (Ethylene dichloride) is prepared by reacting ethylene and chlorine. In the presence of iron(III) chloride as a catalyst, these compounds react exothermically: This process results in high purity EDC and high yields.
High-pressure sodium lamps are quite efficient—about 100 lm/W—when measured for photopic lighting conditions. The higher power lamps (600 W) have an efficiency of 150 lm/W. As the high-pressure sodium arc is extremely chemically reactive, the arc tube is typically made of translucent aluminum oxide.
Under the influence of an electric field, electrons and holes travel to the electrodes, where they result in a pulse that can be measured in an outer circuit, as described by the Shockley-Ramo theorem.
Enberg is well known for his signature on-air catchphrases Touch ‘em all (for home runs) and Oh, my! (for particularly exciting and outstanding athletic plays). He also announced or hosted the Tournament of Roses Parade for many years, sometimes with the help of family members.
Local representatives have criticised developments which they say are to the detriment of the local character and integrity of the village. In February 2010, there were concerns about the fate of the old post office when hoarding was erected around the site.