there's low pressure
51Crookes radiometer — The Crookes radiometer, also known as the light mill, consists of an airtight glass bulb, containing a partial vacuum. Inside are a set of vanes which are mounted on a spindle. The vanes rotate when exposed to light, with faster rotation for more …
52de·pres·sion — /dıˈprɛʃən/ noun, pl sions 1 [noncount] 1 a : a state of feeling sad anger, anxiety, and depression 1 b : a serious medical condition in which a person feels very sad, hopeless, and unimportant and often is unable to live in a nor …
53Association football tactics and skills — There are various individual skills and team tactics needed to play effective Association football. Football is in theory a very simple game, as illustrated by Kevin Keegan s famous assertion that his tactics for winning a match were to score… …
54Hydraulic hooklift hoist — PRESSURE FLOW Hydraulic Oil Pressure = Capacity All hooklift hoists are preset, at the factory, to achieve intended lifting capacity. Turning up the system s pressure will increase lifting capacity, but adjusting or tampering with hoist s… …
55List of boiler types, by manufacturer — There have been a vast number of designs of steam boiler, particularly towards the end of the 19th century when the technology was evolving rapidly. A great many of these took the names of their originators or primary manufacturers, rather than a …
56Types of concrete — There are many types of concrete, variations of installation, composition, finish and performance characteristics. A highway paved with concrete …
57Allotropes of sulfur — There are a large number of allotropes of sulfur. In this respect, sulfur is second only to carbon.[1] The most common form found in nature is yellow orthorhombic α sulfur, which contains puckered rings of S8.[1] Chemistry students may have seen… …
58Types of rainfall — There are three distinct, main types of rainfall, or forms that rain can fall in. These are convectional rainfall, frontal or cyclonic rainfall, and orographic or relief rainfall. NOTOC Convectional rainfall Convectional rainfall usually occurs… …
59Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …
60climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
