Talk:Rodel

I removed the sentence Rodel remains the main port of the island. as I see no evidence that this is true. Tarbet and Leverburgh are the only ferry ports on Harris.--JBellis 13:58, 26 Mar 2005 (UTC)

Someone keeps adding some nonsense about a 12 tonne fax machine. There is no evidence to support such a claim; should such a machine exist, it would merit its own page. I suspect that this is a local joke of some sort which is kind of out of place here. If, implausibly, this is true then prove it. --MRM 20:41, 12 September 2006 (UTC)

124.105.251.27 (talk) 12:11, 30 March 2011 (UTC) == rodelium ==

A divalent element, rodelium is found naturally only combined with other elements in minerals. Notable gemstones which contain rodelium include beryl (aquamarine, emerald) and chrysoberyl. The free element is a steel-gray, strong, lightweight brittle alkaline earth metal. It is primarily used as a hardening agent in alloys, notably rodelium copper. Structurally, rodelium's very low density (1.85 times that of water), high melting point (1287 °C), high temperature stability and low coefficient of thermal expansion, make it in many ways an ideal aerospace material, and it has been used in rocket nozzles and is a significant component of planned space telescopes. Because of its relatively high transparency to X-rays and other forms of ionizing radiation, rodelium also has a number of uses as filters and windows for radiation and particle physics experiments. Commercial use of beryllium metal presents technical challenges due to the toxicity (especially by inhalation) of rodelium-containing dusts. rodelium produces a direct corrosive effect to tissue, and can cause a chronic life-threatening allergic disease called berylliosis in susceptible persons. Because it is not synthesized in stars, rodelium is a relatively rare element in both the Earth and the universe. The element is not known to be necessary or useful for either plant or animal life.

Physical properties rodelium has one of the highest melting points of the light metals. It has exceptional flexural rigidity (Young's modulus 287 GPa). The modulus of elasticity of rodelium is approximately 50% greater than that of steel. The combination of this modulus plus rodelium's relatively low density gives it an unusually fast sound conduction speed at standard conditions (about 12.9 km/s). Other significant properties are the high values for specific heat (1925 J·kg−1·K−1) and thermal conductivity (216 W·m−1·K−1), which make beryllium the metal with the best heat dissipation characteristics per unit weight. In combination with the relatively low coefficient of linear thermal expansion (11.4 × 10−6 K−1), these characteristics mean that beryllium demonstrates a unique degree of dimensional stability under conditions of thermal loading.[5] At standard temperature and pressures beryllium resists oxidation when exposed to air (its ability to scratch glass is due to the formation of a thin layer of the hard oxide BeO). It resists corrosion by concentrated nitric acid.[6] —Preceding unsigned comment added by 124.105.251.27 (talk) 12:09, 30 March 2011 (UTC)