Edwin Hubble examined the spectra of many galaxies, looking for the red …
Edwin Hubble examined the spectra of many galaxies, looking for the red (longer wavelengths) or blue (shorter wavelengths) shifts in the spectra, indicating relative motion. To his surprise, not only did all of the galaxies appear to be moving, but all were moving away from us, no matter the direction of the galaxy. In addition, he found most galaxies exhibited a redshift, and the redshift was larger the further it was from our galaxy.Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
Galileo, in 1612, demonstrated that the Sun rotates on its axis with …
Galileo, in 1612, demonstrated that the Sun rotates on its axis with a rotation period of approximately one month. Our star turns in a west-to-east direction, like the orbital motions of the planets. The Sun, however, is a gas and does not have to rotate rigidly, the way a solid body like Earth does. Modern observations show that the Sun’s rotation speed varies according to latitude; that is, it’s different as you go north or south of the Sun’s equator. Between 1826 and 1850, Heinrich Schwabe, a German pharmacist and amateur astronomer kept daily records of the number of sunspots. What he was looking for was a planet inside the orbit of Mercury, which he hoped to find by observing its dark silhouette as it passed between the Sun and Earth. Unfortunately, he failed to find the hoped-for planet, but his diligence paid off with an even more important discovery: the sunspot cycle. He found that the number of sunspots varied systematically, in cycles about a decade long. In this laboratory, you will engage in tracking the Sun like Galileo and Schwabe during a six-day cycle and then do a simple calculation of the rotational period of our sun.---------------------------------------Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
Given the spectral classification of a distant giant star, you will use …
Given the spectral classification of a distant giant star, you will use the H-R diagram to estimate its absolute magnitude and luminosity. From the distance modulus formula, you will estimate its distance via spectroscopic parallax. From the spectral type, you will estimate its surface temperature and then use the luminosity formula to estimate the diameter of your giant star.---------------------------------------Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
A plot of luminosity vs. time is a ‘light curve’. In this …
A plot of luminosity vs. time is a ‘light curve’. In this laboratory, we will use a light curve to determine the diameter of two stars in a binary system. --------------------------------------- Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
This laboratory measures the parallax shift of the Delta Leonis and uses …
This laboratory measures the parallax shift of the Delta Leonis and uses a Spectral Classification Table to calculate the radius of this star from its temperature.---------------------------------------Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
This laboratory consists of two parts. In part A, we will follow …
This laboratory consists of two parts. In part A, we will follow Hubble’s method of measuring distances. Using pulsation time periods, we will obtain the absolute magnitude of a Cepheid variable and convert this absolute magnitude into luminosity which will, in turn, give us the distance. In Part B, we will use spectral shift (the Doppler effect) to determine the Hubble Constant. --------------------------------------- Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
In Part B, we will use a Python computer coding script to …
In Part B, we will use a Python computer coding script to obtain a spectral redshift of a galaxy (M100). From this redshift, we will use the Doppler formula to find a recession speed. From this speed, we will apply Hubble’s Law to obtain the Hubble Constant.---------------------------------------Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
Our class is part of Arts and Sciences Undergraduate Research Experience (ASURE) …
Our class is part of Arts and Sciences Undergraduate Research Experience (ASURE) at Indiana University Bloomington. This program, which is part of the College of Arts and Sciences, includes a two-semester lab experience where students design and conduct their own authentic research projects. All of the projects described in this eBook were designed and carried out by small groups of students in their first through second year of college as part of their course work in the ASURE Immune Response and Behavior Lab. The ASURE class of 2019-2020 certainly faced some unique challenges. In the spring of 2020, we were abruptly sent home to continue our coursework remotely. This interruption reduced the students’ time to collect data in the lab, but gave them the opportunity to learn R and other data analysis skills. In the fall of 2020, all of the students were able to return to campus and continue work on their projects, though there were several interruptions as students were forced to isolate and/or quarantine. Nevertheless, the students were very dedicated and persisted in their work, which is evident in their final projects.
Welcome to the TIES therapist onboarding resource! These resources are available to …
Welcome to the TIES therapist onboarding resource! These resources are available to help standardize school-based therapist training throughout the state of OR while also allowing individual school districts and ESDs to remix each resource to suit the needs of their region. By doing so, we aim to ensure continuity of training and services throughout the state.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"The transcription factor ATF5 plays a vital role in the formation of several cancers, including breast, lung, ovarian, pancreatic, rectal, and liver cancer. But ATF5’s function in esophageal cancer—one of the most common forms of cancer worldwide—remains unclear. To find out, researchers monitored the activity of ATF5 in esophageal cancer tissues. Much like in other cancers, ATF5 was upregulated in esophageal cancer tissues cultured in the lab, and ATF5 overexpression promoted the proliferation, migration, and invasiveness of esophageal cancer cells. Silencing ATF5, however, inhibited these abilities. In fact, in mice, silencing ATF5 hampered tumor growth. ATF5’s role as a lever that triggers tumor growth is believed to occur through an interaction with HIF1, a protein complex also known to promote the growth and spread of tumors. These findings suggest that the known anti-cancer effects of silencing ATF5 might also be powerful against esophageal cancer..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
O produto destina-se aos educadores de matemática apresentando roteiros de como abordar …
O produto destina-se aos educadores de matemática apresentando roteiros de como abordar os conteúdos regulares escolares no ensino médio interdisciplinarmente e balizados nas competências e habilidades extraídas da BNCC, utilizando-se de artefatos utilitários locais como tema gerador de conteúdos em Matemática e Ciências Ambientais. Desta forma, espera-se com essa prática educacional diferenciada ressignificar o ensino da matemática a partir da construção coletiva do pensar, saber e fazer matemático expressos nos artefatos da cultura local.
Este material fue creado con fin de ayudar a nuestros a estudiantes …
Este material fue creado con fin de ayudar a nuestros a estudiantes a reconocer la importancia que tiene el ATLETISMO en desarrollo integral del ser humano, conociendo así los valores que se desarrollan en cada una de las pruebas tales como la responsabilidad,liderazgo,trabajo en equipo. , respeto, etc.
LEARNING OBJECTIVES: Pupil will be able to define pressuresPupil will be able to …
LEARNING OBJECTIVES: Pupil will be able to define pressuresPupil will be able to reason various phenomena related to atmospheric pressurePupil will observe the demonstrations of effect of atmospheric pressure Objectives with specification :-REMEMBRING - Pupil defines the atmospheric pressure - pupil recalls the concept of atmospheric pressure· UNDERSTANDING - Pupil explains the concept of atmospheric pressure Pupil explains the direction of flow of liquid Pubil explains the direction of atmospheric pressureANALYSIS :bout pressure inside our body Pupil gives real life examples related to atmospheric pressurePupil compares the flow of liquid and gasess
The goal of this lesson is to introduce students who are interested …
The goal of this lesson is to introduce students who are interested in human biology and biochemistry to the subtleties of energy metabolism (typically not presented in standard biology and biochemistry textbooks) through the lens of ATP as the primary energy currency of the cell. Avoiding the details of the major pathways of energy production (such as glycolysis, the citric acid cycle, and oxidative phosphorylation), this lesson is focused exclusively on ATP, which is truly the fuel of life. Starting with the discovery and history of ATP, this lesson will walk the students through 8 segments (outlined below) interspersed by 7 in-class challenge questions and activities, to the final step of ATP production by the ATP synthase, an amazing molecular machine. A basic understanding of the components and subcellular organization (e.g. organelles, membranes, etc.) and chemical foundation (e.g. biomolecules, chemical equilibrium, biochemical energetics, etc.) of a eukaryotic cell is a desired prerequisite, but it is not a must. Through interactive in-class activities, this lesson is designed to spark the students’ interest in biochemistry and human biology as a whole, but could serve as an introductory lesson to teaching advanced concepts of metabolism and bioenergetics in high school depending on the local science curriculum. No supplies or materials are needed.
In this seminar you will read closely and analyze the structure of …
In this seminar you will read closely and analyze the structure of ATP- Adenosine Triphosphate. You will curate your own information about the importance of ATP in a cell by listening and reading text as to what the experts have to say. By modeling the function of ATP in an inquiry lab you can accurately identify the various levels of cellular work done by Adenosine Triphosphate.StandardsBIO.A.3.1.1 Describe the fundamental roles of plastids (e.g., chloroplasts) and mitochondria in energy transformations.BIO.A.3.2.1 Compare and contrast the basic transformation of energy during photosynthesis and cellular respiration.BIO.A.3.2.2 Describe the role of ATP in biochemical reactions
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