#Program written for the exhibition entitled "Looking forward, looking back" held at the Public Science Museum of St Lucia from pylab import * # display welcome message appropriate for all patrons print("Hello everyone, welcome to the St Lucia Science Museum! This exhibition is called 'Looking forward, looking back'. Today we will explore exoplanets, planets that orbit stars outside our solar system.") print("Have you ever thought of finding other exoplanets in the vastness universe? Have you ever thought about the challenge of searching exoplanets? ") print("If you have, then be ready to explore with us. If you haven't, let's go on and learn some more.") # prompts user to enter their patron type print ('\n\n') print("'Science Rookie refer to people who are not familiar with scientific terminology and science graphs. On the contrary, science Enthusiast refer to people who are familiar with science graphs and can understand scientific terminology'. The goal of this exhibition is to make users get the tailor experience. Please enter the level that best illustrates your scientific knowledge.") patron_type=float(input("If you are a science rookie 'press 0' OR if you are a science enthusiast 'press 1': ")) #begin program for Science Enthsiast if patron_type == 1: # display intro about exoplanets and how to detect them (for sicence enthusiast) print ('\n\n') print("Exoplanets are planets that orbit stars outside the sun. Even thought the nearest neighbouring stars are about 4 light-years away.") print("Due to the vast distance and the fact that planets do not emit visible light like stars do, exoplanets are extremely difficult to detect.") print("However, we have developed a number of different technologies to directly or indirectly infer whether the exoplanet is orbiting another star. Through measure the transformation of the radial velocity of the star to the earth 'radial velocity method RV', or observe the change of the light intensity emitted by the star with time 'transient photometry TP'.") x=float(input("Press 0 to continue: ")) #Introductory three explanets (fl1 Pegasi b, HAT-P-22 b, Kepler-7 b)(for enthusiast) print('\n\n') print("fl1 Pegasi b. This exoplanet orbits a fifth-order star, fl1 Pegasi, located in the constellation Pegasus, 48 light-years away from the Earth. The orbit of this planet is 7.8 million km away from the star, which is much closer than Mercury orbit the sun.") #(John Donald Fernie, 2019) print("HAT-P-22 b is an exoplanet orbiting the star HAT-P-22, located about 274.3 light-years away from Solar System. HAT-P-22 is 0.9 times more massive and 1.0 times bigger compared with Sun.") #(Yamashiki YA, 2019) print("Kepler-7 b is an exoplanet orbiting the star Kepler-7, located about 3009.4 light-years away from Solar System. Kepler-7 is 1.4 times more massive and 2.0 times bigger compared with Sun") #(Yamashiki YA, 2019) elif patron_type == 0: # display intro about exoplanets and how to detect them (for sicence rookies) print ('\n\n') print("Exoplanets are planets orbiting stars outside the solar system 'just like the earth rotates around the sun'. Even thought the nearest neighbouring stars are about 4 light-years away from the earth 'the distance of light travels in