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81Michaux State Forest — Pennsylvania State Forest Managed Resource Protected Area (IUCN VI) A lake in Micha …
82Entropy (arrow of time) — Entropy is the only quantity in the physical sciences that picks a particular direction for time, sometimes called an arrow of time. As one goes forward in time, the second law of thermodynamics says that the entropy of an isolated system can… …
83Industrial fans — and blowers are valuable tools for moving air and materials required in a wide variety of manufacturing processes and industries, including cement, power, mining, coal treatment, pollution control, oil and gas, ethanol and steel. Ranging in size… …
84Isaac Wilkinson — (baptised 6 May 1695 31 January 1784) was an English industrialist, one of the founders of the iron industry and pioneer of the Industrial Revolution. However, his business ethics were precarious and his commercial affairs frequently chaotic. He… …
85Bad Water — Death Valley Nationalpark Wandernder Felsen auf dem Racetrack im Death Valley …
86Death-Valley — Nationalpark Wandernder Felsen auf dem Racetrack im Death Valley …
87Death Valley National Park — Death Valley Nationalpark Wandernder Felsen auf dem Racetrack im Death Valley …
88Ubehebe Crater — Death Valley Nationalpark Wandernder Felsen auf dem Racetrack im Death Valley …
89Solar cooker — A solar oven or solar cooker is a device which uses sunlight as its energy source. Because they use no fuel and they cost nothing to run, humanitarian organizations are promoting their use worldwide to help slow deforestation and desertification …
90Dares of MTV's Fear — This article contains a list of dares performed in the show MTV s Fear. Not all the episodes are yet listed here, but the ones listed here show a complete list of dares in the show. Contents 1 The Dares 1.1 West Virginia State Penitentiary 1.2 St …
