Improbable Research - Longest Running Experiments
by Marc Abrahams We are happy to report that three of the world’s longest-running scientific experiments are indeed still running. It has been a number of years since anyone checked on all three. With assistance from scientists in several nations, we have managed to do so. Background on these Experiments In 1984, the European Journal of Physics published three remarkable reports, each describing a different experiment that had been continuing for decades. The Pitch Drop Experiment In Brisbane, pitch is dropping. As described by R. In the foyer of the Department of Physics at the University of Queensland in Brisbane is an experiment to demonstrate, for teaching purposes, the fluidity and the very high viscosity of pitch, set up in 1927 by Professor Thomas Parnell, the first Professor of Physics there. Here is the record as it was presented in 1984: A seventh drop fell during July 1988 during World Expo 88. Now, in the spring of 2001, the pitch is flowing as heartily as ever. The Beverly Clock
Des plaques d’égouts japonaises
Au Japon les plaques qui recouvrent les bouches d’égouts sont souvent décorées et peintes avec des motifs représentant une spécialité de la ville où elles sont installées ou rendent hommage aux personnels qui les utilisent. ( Via )
Pitch drop experiment
The University of Queensland pitch drop experiment, featuring its then current custodian, Professor John Mainstone (taken in 1990, two years after the seventh drop and 10 years before the eighth drop fell). University of Queensland experiment[edit] The eighth drop fell on 28 November 2000, allowing experimenters to calculate that the pitch has a viscosity approximately 230 billion (2.3×1011) times that of water.[2] This is recorded in Guinness World Records as the world's longest continuously running laboratory experiment, and it is expected that there is enough pitch in the funnel to allow it to continue for at least another hundred years. This experiment is predated by two other still-active scientific devices, the Oxford Electric Bell (1840) and the Beverly Clock (1864), but each of these have experienced brief interruptions since 1937. Professor Mainstone subsequently commented: Professor John Mainstone died on 23 August 2013 following a stroke. Timeline[edit] See also[edit]
Milgram's Obedience Experiments | The Perils of Obedience
By Kendra Cherry Updated December 16, 2015. If a person in a position of authority ordered you to deliver a 400-volt electrical shock to another person, would you follow orders? Most people would answer this question with an adamant no, but Yale University psychologist Stanley Milgram conducted a series of obedience experiments during the 1960s that led to some surprising results. These experiments offer a compelling and disturbing look at the power of authority and obedience. More recent investigations cast doubt on some of the implications of Milgram's findings and even question the results and procedures themselves. Learn more about the experiments, the results and some of the major criticisms of Milgram's infamous research. Introduction to the Milgram Experiment "The social psychology of this century reveals a major lesson: often it is not so much the kind of person a man is as the kind of situation in which he finds himself that determines how he will act." Loaded: 0% Progress: 0%
Magnifying the Universe
Embed this infographic on your site! <iframe width="500" height="323" scrolling="no" src=" frameborder="0" allowfullscreen></iframe><br />Copyright 2012. <a href=" the Universe</a> by <a href=" Sleuth</a>. The above is an interactive infographic. We have also developed a complimentary poster that you can view here: Sizes of the Universe poster. If you're technically inclined, here's a look at the references we used to construct these infographics: Facts About The Universe. Introduction: This interactive infographic from Number Sleuth accurately illustrates the scale of over 100 items within the observable universe ranging from galaxies to insects, nebulae and stars to molecules and atoms. While other sites have tried to magnify the universe, no one else has done so with real photographs and 3D renderings. How To Use: Credits:
Nanotubes and Buckyballs
Home > Introduction > Nanotubes and Buckyballs Last Updated: Tuesday, 29-May-2012 06:53:42 PDT Go directly to Websites Nanotube: "Conceptually, single-wall carbon nanotubes (SWCNTs) can be considered to be formed by the rolling of a single layer of graphite (called a graphene layer) into a seamless cylinder. A one dimensional fullerene (a convex cage of atoms with only hexagonal and/or pentagonal faces) with a cylindrical shape. Strictly speaking, any tube with nanoscale dimensions, but generally used to refer to carbon nanotubes, which are sheets of graphite rolled up to make a tube. Nanotubes can be either electrically conductive or semiconductive, depending on their helicity, leading to nanoscale wires and electrical components. A nanotube's chiral angle--the angle between the axis of its hexagonal pattern and the axis of the tube--determines whether the tube is metallic or semiconducting. A graphene sheet can be rolled more than one way, producing different types of carbon nanotubes.
Liquid breathing
Perfluorochemical (perfluorocarbon) molecules have very different structures that impart different physical properties such as respiratory gas solubility, density, viscosity, vapor pressure, and lipid solubility.[1] Thus, it is critical to select the appropriate PFC for a specific biomedical application, such as liquid ventilation, drug delivery or blood substitutes. The physical properties of PFC liquids vary substantially; however, the one common property is their high solubility for respiratory gases. In fact, these liquids carry more oxygen and carbon dioxide than blood.[2] In theory, liquid breathing could assist in the treatment of patients with severe pulmonary or cardiac trauma, especially in pediatric cases. Approaches[edit] Computer models of three perfluorochemical molecules used for biomedical applications and for liquid ventilation studies: a) FC-75, b) perflubron, and c) perfluorodecalin. Total liquid ventilation[edit] Partial liquid ventilation[edit] PFC vapor[edit]
Pacific Sea Level Monitoring Project
The Pacific Sea Level Monitoring (PSLM), operates under the Climate and Oceans Support Program in the Pacific (COSPPac). It is a continuation of the 20-year South Pacific Sea Level and Climate Monitoring Project (SPSLCMP) The 14 Pacific Island countries participating in the project are the Cook Islands, Federated States of Micronesia, Fiji, Kiribati, Marshall Islands, Nauru, Niue, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu and Vanuatu. The primary goal of the project is to generate an accurate record of variance in long-term sea level for the Pacific region. The project also provides information about the processes, scale and implications of sea-level rise and variability of extreme events on South Pacific communities. Pacific Region Data Products and Reports Archived Data Products Pacific Sea-Level Monitoring Network Twelve of the participating countries host a permanent tide gauge facility, which provides information on sea levels and tides.
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