neon bulb
61The Monster Ball Tour — The Monster Ball Tour …
62Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …
63Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
64Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …
65Microwave oven — A modern microwave oven …
66Carl Auer von Welsbach — Infobox Scientist name = Carl Auer von Welsbach box width = image width =150px caption = Carl Auer von Welsbach birth date = 1 September 1858 birth place = Vienna death date = 4 August 1929 death place = residence = citizenship = nationality =… …
67Coherence (physics) — In physics, coherence is a property of waves that enables stationary (i.e. temporally and spatially constant) interference. More generally, coherence describes all properties of the correlation between physical quantities of a wave. When… …
68Citgo — Petroleum Corporation Type Subsidiary Industry Oil and Gasoline Founded 1910[ …
69Gas lighting — For other uses, see Gaslight (disambiguation). Gas lighting is production of artificial light from combustion of a gaseous fuel, including hydrogen, methane, carbon monoxide, propane, butane, acetylene, ethylene, or natural gas. Before… …
70Beer in England — Traditional beer pump English beer has a long history and traditions that are distinct from most other beer brewing countries. Beer was the first alcoholic drink to be produced in England, and has been brewed continuously since prehistoric… …
