bottom hole pressure gauge
71motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
72Inflation (cosmology) — Inflation model and Inflation theory redirect here. For a general rise in the price level, see Inflation. For other uses, see Inflation (disambiguation). Physical cosmology …
73Maxwell's demon — In the philosophy of thermal and statistical physics, Maxwell s demon is a thought experiment created by the Scottish physicist James Clerk Maxwell to show that the Second Law of Thermodynamics has only a statistical certainty. [1] It… …
74Ruler — For other uses, see Ruler (disambiguation). A variety of rulers A 2 meter …
75Free-diving — Free diver with monofin, ascending. Freediving is any of various aquatic activities that share the practice of breath hold underwater diving. Examples include breathhold spear fishing, freedive photography, apnea competitions and, to a degree,… …
76NEMA connector — Twist lock connector redirects here. For the device used in intermodal shipping, see Twistlock. Ungrounded and grounded power plugs …
77List of instruments used in ophthalmology — Instruments used specially in Ophthalmology are as follows: [1] Contents 1 Instrument list 2 Image gallery 3 References Instrument list …
78Tunnel — This article is about underground passages. For other uses, see Tunnel (disambiguation). Underground tunnel for heatpipes between Rigshospitalet and Amagerværket in Denmark …
79Seabed — This article is about ocean floor. For the 2001 song by Audio Adrenaline, see Lift (Audio Adrenaline album). Map showing the underwater topography (bathymetry) of the ocean floor. Like land terrain, the ocean floor has ridges, valleys, plains and …
80Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
