698,607 research outputs found
Do Killer Electrons Affect You?
This full color tri-fold brochure answers questions about high energy particles in space and how they are produced, when and where they occur, and how they can affect us. It also includes lists of web and print resources for further study. Educational levels: Middle school, Middle school
Technology Teacher: Speaking in Phases
This article describes an indoor, game-type demonstration, incorporating physics (EM wave modulation), math (binary codes), space technology, and music to show how spacecraft put information into the radio signals they send back to Earth. Beat out rhythms on drums or desks and send messages using the same principles used in space exploration. This article was originally written for and published by the International Technology Education Association in its journal 'The Technology Teacher.' It is now archived on The Space Place Web site. Educational levels: Middle school
Kepler Mission Fact Sheet
This 2-page color fact sheet briefly describes NASAâs Kepler mission, its instruments, and ground system. Also included are tables listing the instrument parameters and the major institutions involved. Kepler is a spaceborne telescope specifically designed to survey our region of the Milky Way galaxy to detect and characterize hundreds of Earth-size and smaller planets in or near the habitable zone. The habitable zone encompasses the distances from a star where liquid water can exist on a planet's surface. Educational levels: Informal education
Black Holes: From Here to Infinity FAQ
Black Holes: From Here to Infinity is a 6-page illustrated brochure that answers the eight most frequently asked questions about black holes. It was developed by the Education and Public Outreach group at Sonoma State University, with funding from the EXIST mission concept study and the Gamma-ray Large Area Space Telescope (GLAST) mission. It is available in both English and Spanish and is part of the âBlack Holesâ suite of materials that accompany the PBS NOVA show âMonster of the Milky Wayâ and the planetarium show âBlack Holes: the Other Side of Infinity.â Educational levels: Informal education, General public
An instrument for assessing primary students' knowledge of information graphics in mathematics
Information graphics have become increasingly important in representing, organising and analysing information in a technological age. In classroom contexts, information graphics are typically associated with graphs, maps and number lines. However, all students need to become competent with the broad range of graphics that they will encounter in mathematical situations. This paper provides a rationale for creating a test to measure studentsâ knowledge of graphics. This instrument can be used in mass testing and individual (in-depth) situations. Our analysis of the utility of this instrument informs policy and practice. The results provide an appreciation of the relative difficulty of different information graphics; and provide the capacity to benchmark information about studentsâ knowledge of graphics. The implications for practice include the need to support the development of studentsâ knowledge of graphics, the existence of gender differences, the role of cross-curriculum applications in learning about graphics, and the need to explicate the links among graphics
Graphics shadowing analysis
Visual image is generated on cathode-ray tube screen to scale and is constructed according to dimensions of specified craft. Once displayed, image may be manipulated by several different means
An analysis of the use of graphics for information retrieval
Several research groups have addressed the problem of retrieving vector graphics. This work has, however, focused either on domain-dependent areas or was based on very simple graphics languages. Here we take a fresh look at the issue of graphics retrieval in general and in particular at the tasks which retrieval systems must support. The paper presents a series of case studies which explored the needs of professionals in the hope that these needs can help direct future graphics IR research. Suggested modelling techniques for some of the graphic collections are also presented
Graphics for uncertainty
Graphical methods such as colour shading and animation, which are widely available, can be very effective in communicating uncertainty. In particular, the idea of a âdensity stripâ provides a conceptually simple representation of a distribution and this is explored in a variety of settings, including a comparison of means, regression and models for contingency tables. Animation is also a very useful device for exploring uncertainty and this is explored particularly in the context of flexible models, expressed in curves and surfaces whose structure is of particular interest. Animation can further provide a helpful mechanism for exploring data in several dimensions. This is explored in the simple but very important setting of spatiotemporal data
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