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41India Mark II — A broken India Mark II pump in rural Uganda A busy Mark II pump in Uganda. Children often bear th …
42Quecreek Mine Rescue — The Quecreek Mine Rescue took place when nine miners were trapped underground for over 78 hours, July 24 ndash;28, 2002. All nine miners were rescued.Accident and rescueOn July 24, 2002, coal miners at the Quecreek Mine in Lincoln Township,… …
43List of Statutory Instruments of the United Kingdom, 1987 — This is a complete list of all 1468 Statutory Instruments published in the United Kingdom in the year 1987. NOTOC 1 100* Parish and Community Meetings (Polls) Rules 1987 S.I. 1987/1 * National Health Service (Food Premises) (Scotland) Regulations …
44Sidoarjo mud flow — The Sidoarjo mud flow or Lapindo mud, also informally abbreviated as Lusi , a contraction of Lumpur Sidoarjo ( lumpur is the Indonesian word for mud), is a since May 2006 ongoing eruption of gas and mud in the subdistrict of Porong, Sidoarjo in… …
45Formation evaluation neutron porosity — In the field of formation evaluation, porosity is one of the key measurements to quantify an oil and gas reserves. Neutron porosity measurement employs neutron source to measure hydrogen index in a reservoir, which is directly related to porosity …
462010 Copiapó mining accident — Copiapó mining accident redirects here. For the 2006 accident in the Carola Agustina mine, see 2006 Copiapó mining accident. 2010 Copiapó mining accident Rescue efforts at San José Mine near Copiapó, Chile on 10 August 2010 Date …
47Offshore oil spill prevention and response — Inspector on offshore oil drilling rig Offshore oil spill prevention and response is the study and practice of reducing the number of offshore incidents that release oil or hazardous substances into the environment and limiting the amount… …
48Strainmeter — A strainmeter is an instrument used by geophysicists to measure the deformation of the Earth.Linear strainmeters measure the changes in the distance between two points,using either a solid piece of material (over a short distance)or a laser… …
49List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
50Baptist well drilling — A very simple manual method to drill water wells, meant to be applied by very poor villagers in developing countries, who quickly learn how to drill their wells themselves. The Baptist drilling rig can be built in any ordinary arc welding… …
