Kolokolo Bird Blog Archive Measure the Moon
Today my collection at the Academy of Uczniowska second in a series of two classes "Traces of Eratosthenes': lectures on astronomy, geography, geometry, science, and even foreign languages. Attributed by Eratostenesowi measure the distance between Earth and Moon and the diameter of the Moon.
Target Audience: High school or high school. Classes obviously not suitable for a lesson, but can be a good project, the components of which can already be used as a matrix for lessons for the whole class.
Classes are best suited as a continuation of the measurement of the diameter of the Earth by Eratosthenes. The project requires the close cooperation of two small groups of leading observations simultaneously in two remote villages of several hundred kilometers. So, as before, nothing stands movie lights in the way to lead these classes in the second group from another country.
Educational Objectives: Measurements astronomical dimensions of the solar system, geographical coordinates, elementary geometry, a measure movie lights of arc angles, tw. Thales and Pythagoras, trigonometry, measurement techniques, astronomical observations, the parallax, the use of graphics programs and information (maps of the Earth and the sky), technical classes - preparing and installing moldings wzornikowych, news, practical communication in a foreign language, geography: mapping maps, scale maps.
Equipment: We use slightly movie lights modified equipment from the experience of measuring the diameter movie lights of the Earth. Additionally be useful: - Tourist movie lights compass; - Globe (or ball) and the lamp; - Sticks and plasticine.
Introduction: Measure the distance from the Moon to Earth by measuring the parallax of the Moon on a background of stars observed movie lights simultaneously from two points on the Earth. This method is attributed to Eratostenesowi, although this is not certain, because he did not survive his original work on the subject, and the only mention in the later writings of the Alexandrian scholars.
Unlike najklasyczniejszego Aristarchus of Samos measurement, using the width of the cone Earth's shadow during a lunar eclipse, Eratosthenes noted that during the solar eclipse that of Alexandria was seen as a total eclipse, in Sinope on the Black Sea was only half shadowed face of the Sun. Since the angular sizes of the Sun and Moon are almost the same, Eratosthenes concluded that a distance between Alexandria movie lights and Sinope on the plane perpendicular to the direction of the moon must be equal to half the diameter of the Moon.
Observations: Our observations must be conducted in two places, distant from each other by hundreds of miles. movie lights This database should not be significantly shorter than 300km and probably not more than 1500km. In our case, observations were made in the towns of Warsaw and Vienna.
Due to the weather conditions prevailing in Central Europe, it is best to plan activities for the period from May to October: we need a cloudless sky and the air without the haze and the observations will lead shortly after nightfall. Of course, there is always a need to translate the term several times: we have good weather at the same time in both places. Observations are best carried out several days after the new moon, the Moon and a few days after the full moon - when the moon is visible enough above the horizon just after sunset. It is important to relatively far from the face of the moon visible were some bright stars. Better not to conduct follow-up exactly on the full.
Observations are not very demanding when it comes to total darkness - they can be easily done in terms of small-town, with light coming from street lighting and windows of houses. In contrast movie lights to previous experience, but these can not be completely movie lights carried out in the big city, they also require the absence of haze: the light of the moon is so strong that in urban smog or haze natural przytłumiłoby his halo surrounding the star. As a place of observation are also suitable northern suburbs of large cities (we photographed the southern part of the sky where there should be no glare or the smog of the city) - we managed to do these pictures from the terraces of the houses of students living movie lights in distant movie lights southern suburbs of Warsaw and Vienna.
Fix the camera on a tripod so that excelled in the moon. About 5m from the camera in his field of vision set - this time vertically - our pole with markers at 10cm. Shooting parameters set manually: focus on the $ \ infty $, maximum open aperture, shutter speed and sensitivity matrix, so that the moon came out terribly overexposed, but the next visible stars. Best to take pictures not exactly full - then we will have them no longer visible overexposed shaded portion of the Moon, lit only light reflected from the Earth. Reference images of our measurements to this, not overexposed parts allow for greater precision skip
Today my collection at the Academy of Uczniowska second in a series of two classes "Traces of Eratosthenes': lectures on astronomy, geography, geometry, science, and even foreign languages. Attributed by Eratostenesowi measure the distance between Earth and Moon and the diameter of the Moon.
Target Audience: High school or high school. Classes obviously not suitable for a lesson, but can be a good project, the components of which can already be used as a matrix for lessons for the whole class.
Classes are best suited as a continuation of the measurement of the diameter of the Earth by Eratosthenes. The project requires the close cooperation of two small groups of leading observations simultaneously in two remote villages of several hundred kilometers. So, as before, nothing stands movie lights in the way to lead these classes in the second group from another country.
Educational Objectives: Measurements astronomical dimensions of the solar system, geographical coordinates, elementary geometry, a measure movie lights of arc angles, tw. Thales and Pythagoras, trigonometry, measurement techniques, astronomical observations, the parallax, the use of graphics programs and information (maps of the Earth and the sky), technical classes - preparing and installing moldings wzornikowych, news, practical communication in a foreign language, geography: mapping maps, scale maps.
Equipment: We use slightly movie lights modified equipment from the experience of measuring the diameter movie lights of the Earth. Additionally be useful: - Tourist movie lights compass; - Globe (or ball) and the lamp; - Sticks and plasticine.
Introduction: Measure the distance from the Moon to Earth by measuring the parallax of the Moon on a background of stars observed movie lights simultaneously from two points on the Earth. This method is attributed to Eratostenesowi, although this is not certain, because he did not survive his original work on the subject, and the only mention in the later writings of the Alexandrian scholars.
Unlike najklasyczniejszego Aristarchus of Samos measurement, using the width of the cone Earth's shadow during a lunar eclipse, Eratosthenes noted that during the solar eclipse that of Alexandria was seen as a total eclipse, in Sinope on the Black Sea was only half shadowed face of the Sun. Since the angular sizes of the Sun and Moon are almost the same, Eratosthenes concluded that a distance between Alexandria movie lights and Sinope on the plane perpendicular to the direction of the moon must be equal to half the diameter of the Moon.
Observations: Our observations must be conducted in two places, distant from each other by hundreds of miles. movie lights This database should not be significantly shorter than 300km and probably not more than 1500km. In our case, observations were made in the towns of Warsaw and Vienna.
Due to the weather conditions prevailing in Central Europe, it is best to plan activities for the period from May to October: we need a cloudless sky and the air without the haze and the observations will lead shortly after nightfall. Of course, there is always a need to translate the term several times: we have good weather at the same time in both places. Observations are best carried out several days after the new moon, the Moon and a few days after the full moon - when the moon is visible enough above the horizon just after sunset. It is important to relatively far from the face of the moon visible were some bright stars. Better not to conduct follow-up exactly on the full.
Observations are not very demanding when it comes to total darkness - they can be easily done in terms of small-town, with light coming from street lighting and windows of houses. In contrast movie lights to previous experience, but these can not be completely movie lights carried out in the big city, they also require the absence of haze: the light of the moon is so strong that in urban smog or haze natural przytłumiłoby his halo surrounding the star. As a place of observation are also suitable northern suburbs of large cities (we photographed the southern part of the sky where there should be no glare or the smog of the city) - we managed to do these pictures from the terraces of the houses of students living movie lights in distant movie lights southern suburbs of Warsaw and Vienna.
Fix the camera on a tripod so that excelled in the moon. About 5m from the camera in his field of vision set - this time vertically - our pole with markers at 10cm. Shooting parameters set manually: focus on the $ \ infty $, maximum open aperture, shutter speed and sensitivity matrix, so that the moon came out terribly overexposed, but the next visible stars. Best to take pictures not exactly full - then we will have them no longer visible overexposed shaded portion of the Moon, lit only light reflected from the Earth. Reference images of our measurements to this, not overexposed parts allow for greater precision skip
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