PPT-Impact of New Generation of User Oriented Radio Telescopes

The Golden Anniversary of the 1960s The Golden Years of Radio Astronomy HRA IAU GA Hawaii 5 Aug 2015 Ron Ekers CSIRO Australia Overview The discovery process Specialized general purpose. Big Science: Big Telescopes. Jodrell Bank Discovery Centre. Contents. Part 1: Gravity on Earth. Mass or weight?. The strength of Earth’s gravity. Part 2: Big Telescopes. How do we see space?. Part 3: Gravity in Space. Essential Questions- You should be able to answer these questions by the end of the PowerPoint.. What is the purpose of a telescope?. How do refracting telescopes work?. How do reflecting telescopes work?. 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. 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:. 3: Telescopes. Images can be formed through reflection or refraction.. Reflecting mirror. 3.1 Optical Telescopes. Image formation. Modern telescopes are all reflectors:. Light traveling through lens is refracted differently depending on wavelength.. So, if you are not sure, do your best to guess.. Please bring pencil(s) so that you can fill out. the scantrons.. No other accessories (calculators, cell phones, …) are allowed.. Important: Anything in the posted slides that I did not cover in class could be on the exam.. Agenda. Turn in Displacement Lab work. Turn in Permission slips. Notes on . Studying Space & . Exploring . Space packet. Studying space from Earth. Tele. = distance. Scopos. = to watch. Light and radiation (energy in the form of waves that travel through empty space). From geocentric to heliocentric and beyond. By brain . cannon, . 1. st. Period PLTW. Earth-centered universe. Sun-centered universe. Forward Thinking. “. By . taking our sense of sight far beyond the realm of our forebears' imagination, these wonderful instruments, the telescopes, open the way to a deeper and more perfect understanding of nature. Chapter 3 Telescopes. © 2017 Pearson Education, Inc.. Units of Chapter 3. Optical Telescopes. Telescope Size. High-Resolution Astronomy. Radio Astronomy. Space-Based Astronomy. Summary of Chapter 3. Refraction is the _____________ of light as it passes through glass.. II. Reflection: . Reflection occurs when light _____________ off of a mirror.. F. f. I. Refraction: . Refraction is the ___. bending. Surface accuracy not so important, so easy to make large one.. angular resolution . . . wavelength. mirror diameter. D larger than optical case, but wavelength . much. larger (cm's to m's), e.g. for wavelength = 1 cm, diameter = 100 m, resolution = 20".. 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 . SPECTROSCOPY. Uses visible wavelength split into colors. Doppler shift. Wavelengths change when object is moving. Red/ . Blue. Shift. RECEDING (moving away) objects show a INCREASE in WAVELENGTH- red shift. Warning!. You will not learn anything of use from this presentation!!!. Was Yuri Gagarin a radio amateur?. Lost Cosmonauts Conspiracy Theory. Judica-Cordiglia. Brothers. Amateur Radio Royalty. King Hussein of Jordan (JY1.