PPT-Chap 6: Telescopes and Detectors

The most important property of a telescope No its not its power or magnifying ability it is Its Light Gathering power So t he diameter of the mirror or lens is THE most important property. Telescopes. Key Concepts. What are the regions of the electromagnetic spectrum?. What are telescopes and how do they work?. Where are most large telescopes located?. Telescopes - Key Terms. Telescope. Telescopes were first invented around the year 1600. . Galileo . Galilei was an early astronomer who first used telescopes to view objects in our solar system. . He . made many important discoveries including: the moon was covered in mountains and Jupiter had 4 large moons.. Jon Holtzman. NMSU Astronomy. Telescopes are light buckets: bigger buckets collect more light, and faint (far away) objects don’t produce much light!. Why build bigger telescopes?. In principle, bigger telescopes make sharper images:. 1. Interblocage = impasse (Deadlock). Chapitre 8. http://w3.uqo.ca/luigi/. Chap 8. 2. Interblocages: concepts importants. Caractérisation: les 4 conditions. Graphes allocation ressources. Séquences de terminaison. 1. Synchronisation de Processus . (ou de threads, fils ou tâches). Chapitre 7. http://w3.uqo.ca/luigi/. Le problème. Chap. 7. 2. Chap. 7. 3. Problèmes avec concurrence = parallélisme. Les threads concurrents doivent parfois partager données (fichiers ou mémoire commune) et ressources. 1. Chapitre 7 continuation. Problèmes classiques de synchronisation. Lecteurs - Écrivains. Les philosophes mangeant. Moniteurs. Threads en Java. http://w3.uqo.ca/luigi/. Chap. 7. 2. Dorénavant:. SC = Critical Section. Interpolating Values. Animation(U), Chap 3, Interpolating Values. 1. 2. Outline. Interpolating/approximating curves. Controlling the motion of a point along a curve. Interpolation of orientation. Working with paths. History. In 1773 Herschel invented a large . reflecting . telescope and discovered Uranus. This was the first “new” planet.. In late 1800’s . Kuiper. found methane gas in Saturn’s moon with the largest . Chap 5-. 1. Chapter 5. Discrete Probability Distributions. Basic Business Statistics. 12. th. Edition. Chap 5-. 2. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Chap 5-. 2. Learning Objectives. Chap 7-. 1. Chapter 7. Sampling and Sampling Distributions. Basic Business Statistics for . 12. th. Edition. Chap 7-. 2. Copyright ©2012 Pearson Education, Inc. publishing as Prentice Hall. Chap 7-. Prof. JANICKE. 2018. 2018. Chap. 6: Witness Competency. 2. MODERN VIEW. NEARLY EVERYONE IS COMPETENT. WIT. MUST BE HELPFUL BY HAVING SOME LEVEL OF ABILITY :. TO OBSERVE. TO REMEMBER. TO RELATE. 2018. Prof. JANICKE. 2018. 2018. Chap. 13 -- Authentication. 2. AUTHENTICATION. A SUBSET OF RELEVANCE. AUTHENTICATION EVIDENCE IS. NEEDED BEFORE DOCUMENTS AND TANGIBLE THINGS ARE RECEIVED IN EVIDENCE. NOT NEEDED FOR TESTIMONY. Prof. JANICKE. 2018. Evid. Intro. Chap. 1. THE SUBJECT IS:. A BODY OF RULES, TELLING LAWYERS WHAT THEY CAN AND CAN’T (MOSTLY) DO TO . ESTABLISH FACTS. AT TRIAL. “LAW” POINTS ARE ESTABLISHED DIFFERENTLY; NO RULES OF EVIDENCE APPLY. . Size does matter. The bigger, the better. 2. Resolve detail. 3. Magnification. Only important for solar system objects. Refracting Telescopes. Cheap. Good for bright objects. Basic design. Reflecting Telescopes.