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A Personal Dead Reckoning Module Dr
A Personal Dead Reckoning Module Dr. C. Tom Judd, Point Research Corporation BIOGRAPHY what has been done in vehicular and aircraft applications where inertial navigators are used to bridge the dead Dr. Tom Judd is Chief Scientist at Point Research spots. Corporation. For the past four years he has been responsible for developing and implementing algorithms Dead reckoning has been used for ages to obtain a for dead reckoning. Dr. Judd received his Bachelor of position estimate based on velocity, time, and direction Science degree in Physics from St. Mary’s College of from a starting point. For a person on foot, measuring California, and his Ph.D. in Biophysics from the distance directly using a pedometer is a practical means University of California, Davis. for measuring distance traveled. Take the pace count and multiply by the distance for each pace, and you get the ABSTRACT total distance traveled. Pace count has in the past been a an important measure of distance over land. The word Point Research Corporation of Santa Ana, CA has mile originates from the Latin word for one thousand, developed a new lightweight miniature Dead Reckoning milie, the number of paces in a mile. Module (DRM) for drift-free navigation by personnel on foot. The traditional compass and pace-count dead There are several advantages in weight, size, power reckoning navigation has been replaced by a continuous consumption, and accuracy to using electronic dead hands-free module. An internal solid-state 3 dimensional reckoning over a conventional inertial navigator. Inertial compass provides a robust tilt-corrected heading. -
Pacific Parables Final
Pacific Parables Raqs Media Collective [Address to the Pacific Rim New Media Summit, ISEA2006 and Zero One Festival, San Jose, August 2006. Published in in PLACE: Local Knowledge and New Media Practice, Edited by Danny Butt, Jon Bywater & Nova Paul. Cambridge Scholars Press, Newcastle, 2008] The Pacific Rim as a Fiction of Place The Pacific Rim is a fiction about place, a filter through which you can look at the world if you choose to and confer more or less arbitrary meanings on to a set of latitudes and longitudes. There have been previous fictions about place straddling this water, one was called the Greater East Asia Co-Prosperity Sphere, and unleashed havoc in the name of the solidarity of oppressed peoples of Asia, another thought of the Pacific as a Californian frontier, a kind of Wild Blue West. A third spoke French, and drew naked women in Tahiti, and dropped hydrogen bombs in the water. A fourth, the South Pacific Bubble, was one of the first episodes of global financial speculation that shaped the turbulence of the economy of our modern era. Meanwhile, Sikh peasants from the Punjab, Chinese railroad workers from Canton, Agricultural workers and sugarcane cultivators from the hinterland of North India traversed the ocean, Mexicans swam, or walked along the coastline, Australian sailors, New Zealanders on whaling ships, Japanese factory workers, Filipina nurses and itinerant Pacific Islander communities traversed the Pacific, and the wider world, buffeted by the rough winds of recent history. They grew fruit trees in Napa valley, felled timber in British Columbia, mined tin in Peru, pressed grapes in Chile and made what some of choose to call the Pacific Rim what it is today. -
Celestial Navigation Tutorial
NavSoft’s CELESTIAL NAVIGATION TUTORIAL Contents Using a Sextant Altitude 2 The Concept Celestial Navigation Position Lines 3 Sight Calculations and Obtaining a Position 6 Correcting a Sextant Altitude Calculating the Bearing and Distance ABC and Sight Reduction Tables Obtaining a Position Line Combining Position Lines Corrections 10 Index Error Dip Refraction Temperature and Pressure Corrections to Refraction Semi Diameter Augmentation of the Moon’s Semi-Diameter Parallax Reduction of the Moon’s Horizontal Parallax Examples Nautical Almanac Information 14 GHA & LHA Declination Examples Simplifications and Accuracy Methods for Calculating a Position 17 Plane Sailing Mercator Sailing Celestial Navigation and Spherical Trigonometry 19 The PZX Triangle Spherical Formulae Napier’s Rules The Concept of Using a Sextant Altitude Using the altitude of a celestial body is similar to using the altitude of a lighthouse or similar object of known height, to obtain a distance. One object or body provides a distance but the observer can be anywhere on a circle of that radius away from the object. At least two distances/ circles are necessary for a position. (Three avoids ambiguity.) In practice, only that part of the circle near an assumed position would be drawn. Using a Sextant for Celestial Navigation After a few corrections, a sextant gives the true distance of a body if measured on an imaginary sphere surrounding the earth. Using a Nautical Almanac to find the position of the body, the body’s position could be plotted on an appropriate chart and then a circle of the correct radius drawn around it. In practice the circles are usually thousands of miles in radius therefore distances are calculated and compared with an estimate. -
Piracy, Illicit Trade, and the Construction of Commercial
Navigating the Atlantic World: Piracy, Illicit Trade, and the Construction of Commercial Networks, 1650-1791 Dissertation Presented in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in the Graduate School of The Ohio State University by Jamie LeAnne Goodall, M.A. Graduate Program in History The Ohio State University 2016 Dissertation Committee: Margaret Newell, Advisor John Brooke David Staley Copyright by Jamie LeAnne Goodall 2016 Abstract This dissertation seeks to move pirates and their economic relationships from the social and legal margins of the Atlantic world to the center of it and integrate them into the broader history of early modern colonization and commerce. In doing so, I examine piracy and illicit activities such as smuggling and shipwrecking through a new lens. They act as a form of economic engagement that could not only be used by empires and colonies as tools of competitive international trade, but also as activities that served to fuel the developing Caribbean-Atlantic economy, in many ways allowing the plantation economy of several Caribbean-Atlantic islands to flourish. Ultimately, in places like Jamaica and Barbados, the success of the plantation economy would eventually displace the opportunistic market of piracy and related activities. Plantations rarely eradicated these economies of opportunity, though, as these islands still served as important commercial hubs: ports loaded, unloaded, and repaired ships, taverns attracted a variety of visitors, and shipwrecking became a regulated form of employment. In places like Tortuga and the Bahamas where agricultural production was not as successful, illicit activities managed to maintain a foothold much longer. -
Understanding Celestial Navigation by Ron Davidson, SN Poverty Bay Sail & Power Squadron
Understanding Celestial Navigation by Ron Davidson, SN Poverty Bay Sail & Power Squadron I grew up on the Jersey Shore very near the entrance to New York harbor and was fascinated by the comings and goings of the ships, passing the Ambrose and Scotland light ships that I would watch from my window at night. I wondered how these mariners could navigate these great ships from ports hundreds or thousands of miles distant and find the narrow entrance to New York harbor. Celestial navigation was always shrouded in mystery that so intrigued me that I eventually began a journey of discovery. One of the most difficult tasks for me, after delving into the arcane knowledge presented in most reference books on the subject, was trying to formulate the “big picture” of how celestial navigation worked. Most texts were full of detailed "cookbook" instructions and mathematical formulas teaching the mechanics of sight reduction and how to use the almanac or sight reduction tables, but frustratingly sparse on the overview of the critical scientific principles of WHY and HOW celestial works. My end result was that I could reduce a sight and obtain a Line of Position but I was unsatisfied not knowing “why” it worked. This article represents my efforts at learning and teaching myself 'celestial' and is by no means comprehensive. As a matter of fact, I have purposely ignored significant detail in order to present the big picture of how celestial principles work so as not to clutter the mind with arcane details and too many magical formulas. The USPS JN & N courses will provide all the details necessary to ensure your competency as a celestial navigator. -
Chapter 19 the Almanacs
CHAPTER 19 THE ALMANACS PURPOSE OF ALMANACS 1900. Introduction The Air Almanac was originally intended for air navigators, but is used today mostly by a segment of the Celestial navigation requires accurate predictions of the maritime community. In general, the information is similar to geographic positions of the celestial bodies observed. These the Nautical Almanac, but is given to a precision of 1' of arc predictions are available from three almanacs published and 1 second of time, at intervals of 10 minutes (values for annually by the United States Naval Observatory and H. M. the Sun and Aries are given to a precision of 0.1'). This Nautical Almanac Office, Royal Greenwich Observatory. publication is suitable for ordinary navigation at sea, but The Astronomical Almanac precisely tabulates celestial lacks the precision of the Nautical Almanac, and provides data for the exacting requirements found in several scientific GHA and declination for only the 57 commonly used fields. Its precision is far greater than that required by navigation stars. celestial navigation. Even if the Astronomical Almanac is The Multi-Year Interactive Computer Almanac used for celestial navigation, it will not necessarily result in (MICA) is a computerized almanac produced by the U.S. more accurate fixes due to the limitations of other aspects of Naval Observatory. This and other web-based calculators are the celestial navigation process. available from: http://aa.usno.navy.mil. The Navy’s The Nautical Almanac contains the astronomical STELLA program, found aboard all seagoing naval vessels, information specifically needed by marine navigators. contains an interactive almanac as well. -
A Modern Look at the Earth's Climate Mechanism and the Cosmo-Geophysical System of the Earth
A modern look at the Earth's climate mechanism and the cosmo-geophysical system of the Earth Bogdan Góralski Library of the Historical Institute of the University of Warsaw I. Introduction Is the earth's climate getting warmer? My research shows that indeed the atmosphere and hydrosphere of the northern hemisphere warmed up during XIX-XXI centuries but the southern hemisphere getting colder. However, this warming of the northern hemisphere is not caused by excessive carbon dioxide emission caused by the developing human civilization, but is caused by the gravitational-magnetic influences of the Solar System on the rotating Earth as a result of which the outer layer of the Earth's rotates. Being in the move the Earth's coating changes its position relative to the ecliptic plane and along with its movement, over surface of the Earth's, is the shift of the zones of life-giving rainfalls that are stable relative to ecliptic plane. This results in a global economic and social events in the form of regional crises in areas affected by the drought or excessive precipitation. Physical phenomena related to the movement of the Earth's coating and evidence of the occurrence of this phenomenon are presented in the following work. Jakuszowice, 27 July 2019, 15: 10 Bogdan Góralski II. Scheme of the climate mechanism of the Earth 1. Northern hemisphere climate warming and southern hemisphere cooling. Increased magnetic activity of the Sun caused by gravitational interactions of solar system planets is marked in increase of solar wind power and reduction of power of cosmic rays in Earth's atmosphere, gravitational influence of the Sun, Moon, planets on Earth's coating (Earth's coating = crust + earth's mantle) causing rotate of Earth's coating around liquid earth core. -
Theory of Direction Kaustav B
Research Article Nanotechnology & Applications Theory of Direction Kaustav B. Arya* *Correspondence: Kaustav B. Arya, Assam Jatiya Bidyalay, Guwahati, Assam (Research works in IASST), Assam, India, Tel: +91- 9435013881; E-mail: [email protected]. Guwahati, Assam (Research works in IASST), Assam, India. Received: 30 September 2018; Accepted: 16 October 2018 Citation: Kaustav B. Arya. Theory of Direction. Nano Tech Appl. 2018; 1(2): 1-2. ABSTRACT Here, the research tries to find a connection between law of gravitation and magnetic poles. Keywords Electromagnetism shows that magnetic fields are created vertically Gravitation, Magnetic poles, Earth, Space. if electricity flows horizontally. Introduction In this way our planet has magnetic poles north and south vertically. The law of gravitation indicates that every object of the universe But in this huge universe it is always possible to have such objects attracts each other. On the other side we determine our earth’s which rotate vertically from north to south in their rotatory motion. magnetic poles as north and south. Geological poles are south That’s why, following the electromagnetism concept, they will (to earth’s north) and north (to earth’s south). The magnetism have their magnetic poles horizontally or with the directions describes that different poles attract each other. Therefore, to west and east in relation with our concept. Overall this theory of mention the principle of gravitation we can clear ourselves that direction tells that gravitation has its existence maybe because of the connection points of any two objects always face with different opposite pole concept for which all moving objects are balanced directions (poles) because they have attraction. -
Newton.Indd | Sander Pinkse Boekproductie | 16-11-12 / 14:45 | Pag
omslag Newton.indd | Sander Pinkse Boekproductie | 16-11-12 / 14:45 | Pag. 1 e Dutch Republic proved ‘A new light on several to be extremely receptive to major gures involved in the groundbreaking ideas of Newton Isaac Newton (–). the reception of Newton’s Dutch scholars such as Willem work.’ and the Netherlands Jacob ’s Gravesande and Petrus Prof. Bert Theunissen, Newton the Netherlands and van Musschenbroek played a Utrecht University crucial role in the adaption and How Isaac Newton was Fashioned dissemination of Newton’s work, ‘is book provides an in the Dutch Republic not only in the Netherlands important contribution to but also in the rest of Europe. EDITED BY ERIC JORINK In the course of the eighteenth the study of the European AND AD MAAS century, Newton’s ideas (in Enlightenment with new dierent guises and interpre- insights in the circulation tations) became a veritable hype in Dutch society. In Newton of knowledge.’ and the Netherlands Newton’s Prof. Frans van Lunteren, sudden success is analyzed in Leiden University great depth and put into a new perspective. Ad Maas is curator at the Museum Boerhaave, Leiden, the Netherlands. Eric Jorink is researcher at the Huygens Institute for Netherlands History (Royal Dutch Academy of Arts and Sciences). / www.lup.nl LUP Newton and the Netherlands.indd | Sander Pinkse Boekproductie | 16-11-12 / 16:47 | Pag. 1 Newton and the Netherlands Newton and the Netherlands.indd | Sander Pinkse Boekproductie | 16-11-12 / 16:47 | Pag. 2 Newton and the Netherlands.indd | Sander Pinkse Boekproductie | 16-11-12 / 16:47 | Pag. -
Eastern Mediterranean
PUB. 132 SAILING DIRECTIONS (ENROUTE) ★ EASTERN MEDITERRANEAN ★ Prepared and published by the NATIONAL IMAGERY AND MAPPING AGENCY Bethesda, Maryland © COPYRIGHT 2003 BY THE UNITED STATES GOVERNMENT NO COPYRIGHT CLAIMED UNDER TITLE 17 U.S.C. 2003 TENTH EDITION For sale by the Superintendent of Documents, U.S. Government Printing Office Internet: http://bookstore.gpo.gov Phone: toll free (866) 512-1800; DC area (202) 512-1800 Fax: (202) 512-2250 Mail Stop: SSOP, Washington, DC 20402-0001 How to Keep this Book Corrected 0.0 As initially published, this book contains material based 0.0 Between Editions, the Record of Corrections Published in upon information available in the National Imagery and Weekly Notice to Mariners, located below, affords an Mapping Agency through the date given in the preface. The alternative system for recording applicable Notice to Mariners publication of New Editions will be announced in Notice to numbers. The Summary of Corrections, Volume 5, contains a Mariners. Instructions for ordering the latest Edition will be cumulative list of corrections for Sailing Directions from the found in CATP2V01U, Ordering Procedures. date of publication. Reference to the Summary of Corrections should be made as required. 0.0 In the interval between Editions, information that may 0.0 Book owners will be placed on the Notice to Mariners amend material in this book is published in the weekly Notice mailing list on request to the DEFENSE LOGISTICS to Mariners. The Notice to Mariners number and year can also AGENCY, DSC-R, ATTN: Product Center 9, 8000 Jefferson be marked on the applicable page of the Sailing Directions. -
We Need Your Colouring Skills!
We need your colouring skills! What do you think the colours of Mercury are? DID YOU KNOW? ercury • Mercury is the smallest planet in our solar system. • It is only slightly larger than the Earth’s Moon. • One day on Mercury is as long as 59 days on Earth. • A year on Mercury is as long as 88 Earth days • Temperatures on Mercury are extreme, reaching 430°C during the day, and -180°C at night. DID YOU KNOW? The Erth Depending on where you are on the globe, you could be spinning through space at just over 1,000 miles per hour. Water covers 70 percent of Earth's surface. 1 million Earths could fit in the Sun. Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Earth is the only planet not named after a god. We need your colouring skills! What colours will you choose? We need your colouring skills! What do you think the colours of Jupiter are? DID YOU KNOW? Jupiter • Jupiter is the largest planet in the solar system. • Jupiter is as large as 1,300 Earths. • It's the 3rd brightest object in the night sky. • There's a big red spot on Jupiter, which is in fact a storm that has been raging for more than 350 years. DID YOU KNOW? Saturn • Saturn is the 2nd largest planet in the Solar System. • 764 Earths could fit inside Saturn. • Saturn's rings are made of ice and rock. They span 175,000 miles We need your and yet they’re only 20 metres thick. -
Jobkeeper Scheme: Racing the Clock
12 April 2020 12 April 2020 Australia 2020/13 Tax Insights Jobkeeper scheme: racing the clock Snapshot On 30 March 2020, the Australian Government announced the jobkeeper scheme as part of a third round of stimulus and support to the economy. This follows previous announcements on 12 March 2020 and 22 March 2020. Under the jobkeeper scheme, the Government will pay eligible employers a wage subsidy, being a flat payment of $1500 per fortnight for an estimated 6 million eligible employees. As the name suggests, the scheme is targeted at keeping employees in a job. The scheme is proposed to run for 6 months, at a cost of $130 billion. The Government introduced and passed legislation on 8 April 2020, and Royal Assent was given on 9 April 2020. Further, on 9 April 2020 the Treasurer issued the Coronavirus Economic Response Package (Payments and Benefits) Rules 2020 (Rules) which provide the detailed mechanical provisions for the jobkeeper scheme. It is noted that the jobkeeper legislation also contains amendments to the Fair Work Act 2009 – these amendments are not covered in this document. Following passage of the legislative package and issue of the Rules, the Australian Taxation Office as the responsible agency will establish the registration process for eligible employers to register. First registrations are required by 26 April 2020 and the first payments under the scheme are expected to be paid to eligible employers prior to 14 May 2020. This publication has been updated as at 12 April 2020. 01 12 April 2020 Overview Under the design of the scheme, employers will receive the jobkeeper payment from the Government (via the Australian Taxation Office), and employees will be paid directly by their employer.