Energy Star

3.3.2 Energy rating labels and energy star programme: Energy rating labels are a way to provide the information about the energy performance of the product so that the consumer can make a decision about the energy and cost saving potential while purchasing appliances. Labelling has been created to standardize the appliances under specific conditions. Star rating has been provided to show how much efficient the product is. Consumers can easily compare among the different models as well as different

Abstract Stars are made from an interstellar gas cloud. It was believed that in the process of forming a star, the cloud released material onto the interstellar disk in which the stars gradually accumulated it. However, because some stars seemed to have a drastic increase of brightness in a short amount of time, this idea had to be reconsidered. The stars that went through this process seemed to maintain their high luminosity for about 100 years. Astrophysicist Eduard Vorobyov suggested the idea

Alena Calma PCS181 Birth of a Star Why should we be interested in stars? We should be interested in stars because they produce the factors such as light and energy that stirs and heats the gas and dust in space and makes life on planets like Earth possible. “To be a star, an object has to have at least about one tenth the mass of the Sun. Any self-gravitating cloud that attempts to become a star with less material would never develop the pressures and temperatures in its interior needed for

‘There are more stars than all of the grains of sand on earth.’(Star Facts, 2005:1) Looking up at the sky on a vibrant night, the vision is naturally lit one with millions of vivacious, glistening stars. The tenacity of this essay is to explore the lifecycle of a star, thence, signify its manifestation in the universe. A fundamental part of our universe is stars. Hence, these miniature luminous forms are essentially very immense in magnitude and it is merely due to their substantial distance from

Children of the Stars Anisa Noor SES4U November 24, 2014 Children of the Stars Humans are made of stars. This may sound like common poetry but there is scientific evidence to back up such a statement. The human’s biological makeup is proven to have come from the remnants of a supernova, in fact, almost all life on Earth can originate back to the core of a star. Before we were micro-organisms in our evolutionary ancestry we were particles inside a star, and those particles remain within us today

Stars are born of gas and dust and have a life cycle based on their original mass. Stars are not alive, but they go through stages. There are many sources that prove that this fact is true! These sources include the life cycle of stars, star classification, and types of galaxies. These different life cycles are for the high-mass stars and the low-mass stars. There are 3 types of galaxies. These galaxies are Irregular, Spiral, and Elliptical. Irregular galaxies have no defined shape and have mostly

The Universe and It’s Phenomena The universe is an unknown place. Most of it has not been explored. Some things are known, however. Scientists know a lot about things like the Big Bang and our Asteroid Belt. Some of the universe's natural phenomenons are yet to be discovered. This article will explain some of them and why they happen. In the year 1929, Edwin Hubble made a revolutionary discovery. He learned that the universe is expanding. He saw that the galaxies were each moving away

The changes that occur during a star 's life are called stellar evolution. The mass of a star determines the ultimate fate of a star. Stars that are more massive burn their fuel quicker and lead shorter lives. Because stars shine, they must change. The energy they lose by emitting light must come from the matter of which the star is made. This will lead to a change in its composition. Stars are formed from the material between stars, shine until they exhaust their fuel, and then die a predictable

derived by eighteenth-century astronomers, William Herschel et al, who due to the restrictions of observational technology available at that time i.e. small telescopes first thought they either looked like the gas-giant planets of our solar system or stars forming new planetary systems. Planetary nebulae are often given the connotation PN or PNe for the plural by astronomers and exhibit the final stage of a star's life whose initial size is approximately between 1 and 8 solar masses, where the unused

mad you need to understand how stars work. stars are massive collections of mainly hydrogen atoms, within a stars core, nuclear fusion causes hydrogen atoms get crushed into helium atoms which releases a ton of energy, this energy comes in the form of radiation, this radiation pushes against gravity which makes a nice balance between the two. Balance is key For the star to maintain this balance it must maintain fusion within the core, however with much larger stars, the