The Sun The Sun is a star, just like the other ones humans can see in the atmosphere at night. The Sun is actually much closer. In fact, our Sun is a somewhat traditional star, it is not too big or too small, it isn’t even that young or really old. Just an ordinary star. However, as a result of the Sun being so close to Earth, Astronomers believe the Sun is the star we can easily study. The Sun contains some basic elements that can be found on Earth. The Sun is estimated at 92% hydrogen and 8% helium.
How the Sun Produces Energy The Sun produces numerous forms of energy that supports life on Earth. Without this energy provided by the Sun, most life forms known on Earth would come to an end. It will unquestionably change the life cycles and food chains. Like many stars, the Sun is made up of mainly hydrogen gas. The process starts deep within the core of the Sun. The core is the hottest area of the Sun. It is so compressed that amounts of hydrogen atoms are fused together. This process is known as nuclear fusion, the hydrogen atoms are then converted into helium. Nuclear fusion produces massive volumes of energy that are emitted outwards to the surface of the Sun and beyond. This energy continues to travel, is it travels further, this energy is
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All electromagnetic waves roughly travel at a speed of 3.0 x 108 m/s. The average distance between the Earth and the Sun over one Earth orbit is about 1 astronomical unit . It will take roughly 8 minutes for the radiation (sunlight) from the Sun to get to the Earth. IR and UV rays aren't the only radiation the Sun gives off. Fusion in the core gives off high energy gamma rays. While the gamma ray photons are traveling to the surface of the Sun. They are absorbed by the solar plasma therefore re-emitting to lower frequencies. By the time they get to the surface of the Sun, their frequencies are within the Ir and UV
Among of vast history and accomplishments, the name Sam Houston will appear. Sam Houston was a man of great achievements. All the way from being a people person, to the battlefield, Houston was loved by many. Fighting in battles, being a government figure, and friend to many, Sam Houston will be remembered. Sam Houston was and will continue to be a man of history.
The 1980s were a different time period. People start getting better ideas and those ideas were advancing history. A major thing that was part of the 1980s were vehicles. Vehicles were people's transportation. Vehicles were advancing at that time in the 80s some of the first production car were being introduced to fuel injection. Cars were starting to evolve and high horsepower started becoming a factor as well. Movies were another big part of the 80s because graphics and actors were becoming better.
Isn’t Sam Houston an amazing person, but you just don’t know anything about him or what he does? Well if that’s the case, you came to the right essay. This essay will tell you all about Sam Houston, how his life was, and what he did.
The sun has been a major aspect of life since the beginning of time. People used many other forms of energy before electricity was discovered. There has been a debate over energy resources for years. Many people are worried about what current energy resources may be doing to the environment. Oil spills and nuclear power plant mishaps have only been a few accidents that have had a big impact on the environment and the people who inhabit it. There are plenty of energy sources that do not harm the environment and are still able to get the job done. Solar energy is one energy alternative that will insure the betterment of the country and, at the same time, protect the natural environment.
Gordon Parks was a photographer and humanitarian with a passion for documenting poverty, and civil rights in the second half of the 20th century. His signature style continues to be celebrated as one of the most iconic of the time.
Light is both part particle and part wave. Light is “the electromagnetic radiation that may be perceived by the human eye”. It consists of photons, which are massless bundles of concentrated electromagnetic energy. Light’s lower frequency is red, and the higher frequency is blue. Like sound, light has frequencies humans can’t detect. Ultraviolet light is at a frequency higher than violet, and infrared is at the frequency lower than the red of visible light. We get UV (ultraviolet) rays from the sun, and infrared is used in night vision to see better.
Green plants convert the radiant energy emitted by the Sun into useful chemical energy, such as the oxygen that we breathe. The energy transferred between any surroundings and any system can be in the form of various types of work, chemical, mechanical, radiant, electrical, or heat. The second law of thermodynamics is expressed as a cycle in which “all processes occur spontaneously in the direction that increases the entropy of the universe (system plus surrounding).” Entropy, the number of ways the components of a system can be rearranged without changing the system, plays a major role in the second law of thermodynamics.
When a solar flare occurs, vast amount of magnetic energy get released and turned into electromagnetic radiation. (NASA 2015) Traveling at light-speed, the resulting radiation containing X-ray, extreme ultraviolet rays, gamma rays and radio waves would arrive at Earth after only 8 minutes. The x-rays may interact with the atoms in the ionosphere of Earth and cause a sudden increase in ionization, which could interfere radar and shortwave radio communication. The ultraviolet rays can heat the upper atmosphere, causing the atmosphere shell to expand, which may drag low orbiting satellites and spacecraft, leading to unexpected orbital changes (Marusek 2007). For instance, the premature demise of the Solar Maximum Mission in 1990 and Skylab in 1979 are due to this phenomenon (Odenwald
Nuclear fusion occurs when two atomic nuclei collide with enough energy to bind together to form one nucleus. Nuclear fusion occurs in the core of our sun, and is the source of its tremendous heat. In the sun hydrogen nuclei, single protons, fuse together and form a new nucleus. In the conversion, a small amount of mass is converted into energy. It is this energy that heats the sun.
Light can be classified as a form of electromagnetic radiation, which includes visible light. The ‘light’ commonly referred to in everyday life belongs in this category. The electromagnetic spectrum includes other types of radiation such as gamma rays, radio waves and cosmic rays, all of which possess distinct wavelengths, frequencies and energy levels. These forms of electromagnetic radiation are not visible to the human eye but can be perceived by selected species of animals, such as bees. Figure 1 below displays the electromagnetic spectrum and provides a basic insight into the respective characteristics of different forms of radiation.
would be absorbed and the earth would be extremely cold. When too many rays are absorbed, the
Solar energy is clean energy that does not affect our environment. Solar power utilizes the sun’s energy to produce electricity, unlike other sources of energy, which rely on continual mining for raw materials. Consequently, producing solar energy from the heat from the sun does not result into the annihilation of the ecosystem, compared to the extraction of fossil fuels (Bode, 2005). Therefore, with the use of solar energy, it will help keep the environment clean, thus help to combat the issue of global warming, which is a threat to the world’s ecosystem worldwide. The use of solar energy will help save the worlds vegetation, and help prev...
We need the sun for everything; food, transportation, education, and just to live. The sun negatively affects us in our daily lives because our skin is sensitive to the sun. This means that we are prone to burn. A way to protect our skin is with sunscreen. The short-term effect of not wearing sunscreen when exposed to the sun is you can get a painful rash or peeling of skin can occur. Long-term effects of not protecting yourself from the sun can be that it changes your DNA or gives you skin cancer. It changes your DNA by radiation smashing into you skin. The reason why this is so dangerous is because the DNA will now instruct the skin to fix itself because of the radiation, but the instructions would have been changed. It can also speed up
First of all, solar energy is the energy produced when the sun heats the solar panel. Thus, when the sun heats the panels, it produces electricity. Solar power produces energy during the day and can store energy for the night. Solar power does not pollute the environment. However, it has high maintenance cost, and it takes a lot of land space.
VISIBLE LIGHT: This is the only part of electromagnetic spectrum that human beings can see. Visible light is emitted by things like the Sun, light-bulbs or TVs.