Henrietta Leavitt Variable Stars Essay

The telescope is named after Edwin Hubble, who discovered that there are more galaxies in the universe other than the Milky Way. He also discovered that galaxies are moving away from us and that the farther away they are, the faster they are moving. Edwin Powell Hubble was born in Missouri in 1889. He moved to Chicago 9 years later. He graduated from high school in 1906 with a scholarship to the University of Chicago and graduated from the University with a degree in Mathematics and Astronomy in 1910.

The Carrington Event, also known as the Solar Storm of 1859, is the largest geomagnetic solar storm in recorded history, resulting from a coronal mass ejection; a massive surge of magnetized plasma originating from the Sun’s surface on the morning of September 1st, 1859. As the mass of plasma hit the Earth’s magnetosphere mere hours after the event had occurred on the Sun’s surface, southern aurorae were seen as far north as Queensland, Australia, and the aurora borealis was powerful enough that residents of the north-eastern US could read a newspaper by the aurora’s light. The solar storm ravaged the primitive telegraph communication system used in 1859, and caused damage to electrical grids worldwide. CAUSES The Carrington Event was caused by a massive burst of electromagnetic radiation, magnetized gas and plasma released into the solar wind by the Sun’s corona in a phenomenon called a coronal mass ejection (CME).

Huaqing Ying Professor Frank Mayer PHS 208 Extra Credit-Research Paper Why animals’ eyes turn green in the dark I pet a cat when I lived with my parents, and she grows up with me for about five years. When I was young, I always wondered why her eyes glowed when she was hiding in a dark corner. So I did some research. Why animals’ eyes have colors The cat's eyes are similar to the human eye, and it also structure with the cornea, iris, lens, retina, and so on.

Introduction: What is photosynthesis? The chemical progress of photosynthesis is when a green plant and sometimes other organisms produce O2 (oxygen) by using the light energy from the sun, CO2 (carbon dioxide) and water. The green colour pigment is created by chlorophyll in the plant. 6 CO2 + 6 H2O –> C6H12O6 + 6O2 Carbon dioxide + Water –> Glucose + Oxygen Research question:

One factor that would make it difficult to observe from a city like Tempe is the city lights; light pollution are common in cities which makes observing difficult. For a better observing, we need a dark sky so that more star or objects in the sky are visible. Secondly, on mountain top above dust and water vator also makes observing better: we are closer to the sky and far away any conditions that would negatively affect our view. Finally good weaher and lots of clear nights also positevly affects

Halo,welcome to 2 minutes astronomy. It’s me Ansley with you guys this afternoon. Today, I want to share a new topic with you all about an important astronomical discovery that is PULSAR! In 1967, Jocelyn Bell and Antony Hewish accidentally discovered Pulsar when they were searching for some kind of twinkling source of radio radiation.

In the above hypotheses, the research done previous to the lab supported the alternate hypotheses for the colored lights in relation to the dim lights, and the null hypothesis for the experiment in which both sides of the chamber had dim light. The dim light on Side B of the chamber would be favored because, in a previous study, D. Melanogaster were exposed to different illuminations, and “their favorite resting, grooming, and feeding places were determined with an infrared-sensitive camera.” Additionally, the study used infrared beams to collect data on the activity levels of the flies during their most active period of the day under different light intensities. Each of these methods demonstrated D. Melanogaster’s preference for dim light occurring “between 5 and 10 Lux” (Rieger et al.).

The reason why music causes connections is because of how people can easily relate to it as one. The writer Lea Winerman from the American Psychology Association tells about, “An autistic teenager learns to communicate with other people by playing the drums as part of a group.” (“American Psychology Association”) This teenager must have really struggled a lot knowing that he/she could not be able to communicate with other people and have fun with them. That is why she found the drums that easily helped her connect with other people. ”

Before modern technology allowed astronomers to determine the exact distances between the Earth and other objects in the solar system, they had to rely on alternative methods to make these measurements. Two scientists who made some of these early measurements were Johannes Kepler and Giovanni Cassini. Kepler used the time of a planet’s orbit to determine the relative distance between the Earth and other objects, while Cassini used the parallax method to estimate distances. Johannes Kepler was born in 1571 in a small town called Weil der Swadt in Swabia, Germany and is well known for discovering the three laws of planetary motion. In 1589 he began his college level education in Tubingen at the Protestant university there.

Antony van Leeuwenhoek (1632-173) was responsible for on of the earliest developments of the microscope, it consisted of a powerful convex lens and an adjustable holder for the object being studied. This instrument would have been able to magnify objects up to 400x and with it he discovered protozoa, spermatozoa, and bacteria, and was able to classify red blood cells by shape. The limitation with this microscope was the single convex lens. This was fixed by the addition of a second lens, giving rise to the compound microscope which is the basis of light microscopes today. During the 18th century, technology developed into using a beam of electrons for the microscope unit to improve resolution capabilities.