1 Symptoms are due to the effects of excess acetylcholine on nicotinic and muscarinic acetylcholine receptors in the CNS, at neuromuscular junctions, and in the sympathetic, and parasympathetic nervous systems. 2  Nicotinic and muscarinic receptors have different. 3  Functions.
We're taking here about mains voltage (say 120 V or 230 V AC) power supplies with power ranging from a few Watts to several hundred Watts. Switch mode power supplies are everywhere; here are some pictures of their guts. The big high power components and small heat sinks are typical of SMPS. These devices are incredibly reliable, but being very often left powered all the time (even when their load is switched off), they still are the weak link.
Silicon, like its congener, carbon, is fairly inert. Like carbon, silicon will burn vigorously in oxygen if ignited to produce silica: Si(s) + O 2 (g) = SiO 2 (s). Burning silicon releases about 860 kJ of heat per mole, compared to 394 kJ per mole for burning carbon, so a silicon fire could potentially burn quite a bit hotter than a carbon fire.